Showing posts with label SQL. Show all posts
Showing posts with label SQL. Show all posts
SQL Interview/Exam Questions With Details Explanation : 2025
Tuesday, February 25, 2025
Practice for SQL Certification with 320+ Questions Covering SQL Queries, Administration, and Performance!
Preview this Course
Description
SQL Interview Questions – 320+ Comprehensive Practice Questions
Are you preparing for an SQL interview? This extensive collection of 320+ SQL interview questions will help you enhance your database skills, gain confidence, and get ready to tackle real-world SQL challenges. Whether you're a beginner or an experienced professional, these questions cover essential SQL concepts with clear, detailed explanations.
What Topics Will We Cover in This Practice Test?
Basic SQL Queries
What are the different types of SQL statements?
How do you retrieve unique values from a table?
What is the difference between WHERE and HAVING?
Explain the difference between COUNT(*), COUNT(column), and COUNT(DISTINCT column).
Joins and Relationships
Explain different types of joins (INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN, CROSS JOIN).
How do you perform a self-join?
What is the difference between JOIN and UNION?
Subqueries and Common Table Expressions (CTEs)
What is a subquery? Provide an example.
What is the difference between a correlated and non-correlated subquery?
When should you use CTEs instead of subqueries?
Aggregation and Grouping
How does GROUP BY work? Give an example.
What is the difference between GROUP BY and PARTITION BY?
How do you find the second highest salary in an employee table?
Indexes and Performance Optimization
What are indexes? How do they improve performance?
What is the difference between a clustered and non-clustered index?
What are some ways to optimize a slow query?
Constraints and Data Integrity
What are primary and foreign keys?
What is the difference between UNIQUE and PRIMARY KEY?
How do CHECK and DEFAULT constraints work?
Transactions and Concurrency Control
What are transactions, and what are ACID properties?
What is the difference between COMMIT, ROLLBACK, and SAVEPOINT?
Explain isolation levels and their effect on transactions (READ COMMITTED, READ UNCOMMITTED, REPEATABLE READ, SERIALIZABLE).
Stored Procedures, Functions, and Triggers
What is the difference between a stored procedure and a function?
How do you pass parameters to a stored procedure?
What is a trigger? Give an example of when to use one.
Normalization and Database Design
What are normalization and denormalization?
Explain the different normal forms (1NF, 2NF, 3NF, BCNF).
What is the difference between OLTP and OLAP databases?
Advanced SQL Concepts
What is a window function? Provide an example.
Explain the use of RANK(), DENSE_RANK(), and ROW_NUMBER().
How do recursive queries work in SQL?
NoSQL vs SQL
What are the main differences between SQL and NoSQL databases?
When should you choose NoSQL over SQL?
Real-World Problem-Solving Scenarios
How would you design a database for a library management system?
How do you handle duplicate records in SQL?
How do you write an efficient query to find employees with the highest salary in each department?
Why Choose This SQL Interview Question Bank?
320+ Curated Interview Questions – Designed to test your knowledge across key SQL concepts, from basic queries to advanced optimization techniques.
Detailed Explanations – Every question includes in-depth explanations to ensure you understand the logic behind SQL queries.
Real-World Scenarios – Approximately 40-45% of the questions focus on practical applications, helping you prepare for real job challenges.
Up-to-Date Content – Covers the latest SQL techniques and best practices to ensure you're interview-ready.
Get Ready to Ace Your SQL Interview!
With a well-structured question set, expert explanations, and real-world problem-solving exercises, you'll be well-prepared to impress hiring managers and land your next SQL-related role.
Start practicing today and take your SQL expertise to the next level!
Who this course is for:
- Individuals looking for a job can use practice tests to improve their SQL skills and knowledge, helping them stand out in the job market with SQL Certification.
- Those who feel unsure about their abilities can use practice tests to build confidence by getting familiar with the exam format and preparing well for SQL Certification.
- Anyone who wants to improve their test-taking skills can benefit from practice tests, helping them try different strategies and get better at managing time for SQL Certification.
- Data analysts who want to validate their SQL knowledge can use practice tests to refine their query skills and prepare for SQL Certification.
- IT professionals looking to transition into database management can take practice tests to strengthen their SQL expertise for SQL Certification.
- Professionals aiming for promotions in data-driven roles can use SQL Certification practice tests to validate their SQL skills and improve career prospects.
- Anyone looking to transition into a data-related role can use SQL Certification practice tests to develop essential database querying skills.
Financial Data Analysis & Business Analysis with SQL
Thursday, February 13, 2025
Financial data analysis, customer segmentation analysis, financial growth projection, budgeting with SQL
Preview this Course
Description
Welcome to Financial Data Analysis & Business Analysis with SQL course. This is a comprehensive data analysis course where you will learn step by step on how to perform financial analysis, customer segmentation analysis, profitability analysis, budget allocation, and financial growth projection using SQL. This course is a perfect combination between finance and data analytics, making it an ideal opportunity to practice your SQL skills while improving your technical knowledge. In the introduction session, you will learn the basics fundamentals of structured query language, such as getting to know its core functions, use cases, and several examples of relational database management systems. Then, in the next section, you will learn basic SQL queries like select, insert, update, and delete, which are essential for interacting with the database. You will also learn how to filter, sort, and aggregate data, allowing you to extract meaningful insights from financial data. Before starting the project, we will set up the SQLite Online which is the IDE that we will use, in addition, we will also find and download the financial dataset from Kaggle. Once everything is all set, we will begin cleaning the data by handling missing values and converting data types as needed, the objective is to ensure that the dataset is ready for analysis. Afterward, we will conduct more detailed analyses, such as examining sales revenue by country to identify the most profitable markets and exploring sales revenue by product to understand which items contribute the most to total revenue. We will also analyze the impact of discounts on overall sales to determine the effectiveness of different pricing strategies. Following these initial analyses, we will delve into more advanced topics, including budget allocation to optimize expenditure, expense tracking to monitor spending patterns, profitability analysis by product to identify high-performing products, customer segmentation analysis to understand buying behavior, and financial growth projections to forecast future financial performance. This project will enable you to build a comprehensive understanding of financial analysis and budgeting. Last but not least, at the end of the course, we will use an AI text to SQL generator to automatically translate business questions into SQL queries, streamlining the analysis process and enhancing your ability to extract insights quickly and efficiently.
First of all, before getting into the course, we need to ask ourselves this question, why should we learn about SQL, why should we analyze financial data using SQL? Well, here is my answer, SQL is essential because it allows us to efficiently retrieve, analyze, and organize large datasets, providing a solid foundation for data-driven decision-making. By analyzing financial data with SQL, you can identify trends, track key metrics, and make informed decisions that drive business growth and profitability. Mastering SQL will help you transform complex financial data into actionable insights that improve budgeting, forecasting, and overall financial strategy. Additionally, SQL is often preferred over Python or R for data analysis because it is specifically designed for querying and managing large datasets directly within databases, making it faster and more efficient for handling structured financial data.
Below are things that you can expect to learn from this course:
Learn the basic fundamentals of Structured Query Language, SQL use cases, SQL core functions, and relational database management system
Learn how to clean data by removing missing values and duplicates
Learn how to reformat data using SQL
Learn about basic SQL queries like select statement, order by clause, where clause, insert, update, delete, group by clause, and aggregate functions
Learn how to analyse total sales revenue by country using SQL
Learn how to analyse total sales revenue by product using SQL
Learn how to do profit margin analysis for each product with SQL
Learn how to analyse discount impact on sales revenue and profitability with SQL
Learn how to simulate budget allocation for manufacturing using SQL
Learn how to do customer segmentation analysis with SQL
Learn how to analyse monthly sales performance with SQL
Learn how to identify products with high COGS and low profit with SQL
Learn how to do financial growth projection and forecast sales using historical data
Learn how to generate SQL queries using AI
Who this course is for:
- Data analysts who are interested in analysing large data using SQL
- Financial analysts who are interested in utilising SQL for budgeting and modelling
Master SQL Basics in 7 Days! | Learn SQL Server (SSMS)
Tuesday, February 4, 2025
Master SQL Basics in 7 Days! | Learn SQL Server (SSMS) - A One Week Comprehensive Introduction to SQL and Microsoft SQL Server Management Studio!
Preview this Course
Description
Welcome to "Master SQL Basics in 7 Days! | Learn SQL Server (SSMS)," your fast-track introduction to SQL and Microsoft SQL Server Management Studio (SSMS). Designed for beginners, this comprehensive course takes you through the essentials of SQL in just seven days. Whether you're a complete novice or looking to strengthen your foundational knowledge, this course will guide you step-by-step through the key concepts of SQL and provide hands-on experience using SSMS, one of the most powerful tools for managing databases.
In just one week, you'll learn how to query databases, retrieve and manipulate data, and create your own databases—all essential skills for anyone looking to dive into data analysis, business intelligence, or database management. Each lesson is designed to be approachable and simple yet detailed, ensuring you gain both theoretical knowledge and practical, real-world application. No prior coding or database experience is required; all you need is the desire to learn!
Throughout this course, you will:
Gain the confidence to navigate and use SQL and Microsoft SQL Server Management Studio like a data pro.
Understand the basics of SQL, including SELECT, INSERT, UPDATE, DELETE, and JOIN operations.
Learn how to create and manage databases, tables, and relationships within SSMS.
Write efficient queries to retrieve and manipulate data.
Create Databases and inserting thousands of values
Analyze thousands of rows of data – real world data
Prepare data for visualizations such as PowerBI, Tableau, etc.
Design Entity Relationship Diagrams
Aggregate, format, and modify data using SQL operators and functions
Gain experience with Big Data and solving complex questions using data
Learn SQL Joins – working with multiple tables and databases
Practice, Practice, Practice.
And much more!
The course is divided into seven bite-sized modules, each building on the last, ensuring a smooth learning curve. You’ll complete each lesson with practical exercises, allowing you to immediately apply what you’ve learned and solidify your skills. By the end of the week, you'll have a solid understanding of SQL and how to use SSMS to interact with databases efficiently.
In this course, the instructor will guide you through the step-by-step process of installing Microsoft SQL Server Management Studio on a Windows operating system. It is strongly recommended that you have access to a Windows-based computer before enrolling.
Whether you're looking to advance your career, gain new technical skills, or simply understand the language of databases, this course will provide you with the tools you need to succeed. Start your journey to mastering SQL today!
Who this course is for:
- Beginners who have no prior experience with SQL or databases but want to learn.
- Students and recent graduates seeking a foundational understanding of SQL to boost their career prospects.
- Career switchers interested in exploring opportunities in data analytics, business intelligence, or database administration.
- Anyone with a busy schedule who wants to learn SQL quickly and efficiently, with just one hour a day.
SQL and PostgreSQL: The Complete Developer's Guide
Sunday, January 5, 2025
SQL and PostgreSQL: The Complete Developer's Guide
Become an expert with SQL and PostgreSQL! Store and fetch data, tune queries, and design efficient database structures!
Preview this Course
Description
Database structure design? It's here. Query tuning and optimization? You'll master it. Complex queries? Yes indeed!
This is the only course online that will teach you how to design a database, store complex data, optimize your queries, everything that is needed for operating a production, scalable database!
Every app in the world, whether it is a mobile app built with Flutter, a web app constructed with React, or a plain HTML page, needs to store information in a database. Although there are many different databases you can use, PostgreSQL has been a number-one pick for decades, offering scalable performance, rock-solid uptime, and flexible design systems. This course will teach you everything you need to know about PostgreSQL to use it on your next big project!
Don't know anything about databases at all? No problem. We begin with an overview of SQL, the language used to interact with PostgreSQL. Through an incredible number of exercises, you'll get practical, hands on experience working with realistic datasets. You will understand how to store, fetch, and update information with a series of powerful commands.
After gaining experience with elementary operations, you will move on to understanding database design patterns, offering multiple ways to structure your database for efficient data modeling. You'll see many different scenarios with different types of data, and understand the pros and cons to several approaches.
This course is packed with practice exercises and quizzes. You'll get immediate practice on all of the different topics and features that you learn! In addition, you'll understand exactly where to use each of these features in real and practical projects.
Besides getting practical hands-on experience, you'll also get a behind-the-scenes look at how PostgreSQL works internally. We'll dive into raw data files, investigating how PostgreSQL stores information on your hard drive bit by bit. This knowledge is invaluable when it comes time to start tuning your queries for performance. By having a natural instinct of how PostgreSQL works, you can plan on being able to get every last bit of performance out of your database.
Here is a partial list of some of the topics that are covered in this course:
Apply powerful SQL commands to store, update, and retrieve information
Build relationships between records using foreign keys between tables
Understand PostgreSQL's numerous data types, and when to use each
Assemble reports of business data by using aggregation pipelines
Work with millions of records to simulate real production queries
Exercise your query logic skills through the use of sets and sorting operators
Compose queries out of smaller reusable units using subqueries
Use different design patterns to efficiently model your data
See how to divide database objects into different schemas to maintain them more easily
Validate your data using simple 'check' rules
Construct perfect designs for common features such as 'like', 'follow', and 'tag' systems
Speed up your queries with indexes - you'll see exactly how they work behind the scenes!
Dive into some of the most complex queries around with recursive common table expressions
Deal with concurrency issues easily by applying transactions
I made this course to be the perfect resource for engineers just getting started with their first database. Master the database itself, and see how to apply it with real designs. Sign up today and master PostgreSQL!
Who this course is for:
- Any developers looking to understand databases
- Application engineers seeking to expand their backend skillset
Crack SQL Interview : 200+ Questions with Concept Building
Sunday, October 13, 2024
The Ultimate Course for cracking Interviews with SQL Questions. The course cover basic to advance level question
Preview this Course
Description
Course Objective: Master SQL for technical interviews and enhance database proficiency
Target Audience: Data Engineers, Analysts, Scientists, Software Engineers, DBAs, and aspiring data professionals
Key Learning Areas:
Foundational to advanced SQL concepts
Complex query writing and optimization
Database design principles
Performance tuning techniques
Practical Focus:
Real-world SQL problem-solving
Hands-on exercises and case studies
Mock interview scenarios
Topics Covered:
Data manipulation (SELECT, INSERT, UPDATE, DELETE)
Join operations and subqueries
Window functions and Common Table Expressions (CTEs)
Query optimization and execution plan analysis
Skills Development:
Efficient problem-solving approaches
Clear articulation of SQL solutions
Whiteboarding complex queries
Career Benefits:
Confidence in technical interviews
Enhanced SQL proficiency for various data roles
Competitive edge in the job market
Learning Outcomes:
Ability to tackle complex SQL challenges
Improved database performance optimization skills
Effective communication of database concepts
Course Delivery: Blend of theoretical instruction and practical application
Final Goal: Prepare students to excel in SQL-focused technical interviews and advance their careers in the data industry
Topics Covered in the Course:
1. SQL Fundamentals
Basic SQL syntax and structure
SELECT statements and data retrieval
Filtering with WHERE clauses
Sorting results with ORDER BY
Limiting result sets
2. Data Manipulation
INSERT statements for adding data
UPDATE statements for modifying existing data
DELETE statements for removing data
MERGE statements for upserts
3. Table Operations
CREATE TABLE syntax and best practices
ALTER TABLE for modifying table structures
DROP and TRUNCATE operations
Temporary tables and their uses
4. Joins and Relationships
INNER, LEFT, RIGHT, and FULL OUTER JOINs
Self-joins and their applications
CROSS JOINs and Cartesian products
Handling NULL values in joins
5. Subqueries and Nested Queries
Correlated and non-correlated subqueries
Subqueries in SELECT, FROM, and WHERE clauses
EXISTS and NOT EXISTS operations
Comparing subquery results with ANY and ALL
6. Aggregation and Grouping
Aggregate functions (SUM, AVG, COUNT, etc.)
GROUP BY clauses for data summarization
HAVING clauses for filtering grouped data
Dealing with NULL values in aggregations
7. Advanced SQL Techniques
Window functions for analytics
Common Table Expressions (CTEs) for query readability
Recursive CTEs for hierarchical data
Pivoting and unpivoting data
8. Data Types and Functions
Understanding and using various SQL data types
Date and time functions
String manipulation functions
Numeric and mathematical functions
Conditional expressions (CASE statements)
9. Indexes and Performance Tuning
Creating and using indexes effectively
Understanding query execution plans
Identifying and resolving performance bottlenecks
Statistics and their impact on query optimization
10. Transactions and Concurrency
ACID properties of transactions
Transaction isolation levels
Handling deadlocks and race conditions
Optimistic vs. pessimistic locking
11. Views and Stored Procedures
Creating and managing views
Materialized views for performance
Writing and optimizing stored procedures
Functions vs. stored procedures
12. Database Design Principles
Normalization and denormalization techniques
Entity-Relationship Diagrams (ERDs)
Primary and foreign key constraints
Maintaining data integrity
13. Security and Access Control
User authentication and authorization
Role-based access control
Row-level and column-level security
Auditing database activities
14. Handling Large Datasets
Partitioning strategies for big tables
Batch processing techniques
Optimizing queries for large-scale data
Indexing strategies for big data
15. SQL in Data Analysis
Writing complex analytical queries
Cohort analysis techniques
Time series analysis in SQL
A/B testing with SQL
16. Interview Strategies
Approaching and breaking down complex SQL problems
Optimizing queries on the fly
Explaining your thought process effectively
Handling ambiguous requirements in interview questions
Each topic is covered in-depth with practical examples, real-world scenarios, and interview-style questions to ensure comprehensive understanding and application.
Who this course is for:
- This course is designed for professionals and aspiring candidates in data-related fields who are preparing for technical interviews or seeking to enhance their SQL skills.
- The primary audience includes: Data Engineers
- Professionals responsible for designing, building, and maintaining data pipelines and infrastructure.
- Data Analysts: Individuals who work with data to provide insights and support decision-making processes.
- Data Scientists: Professionals who use statistical and machine learning techniques to analyze complex data sets.
- Software Engineers: Developers who work on applications that interact with databases and require SQL knowledge.
- Database Administrators (DBAs): Specialists responsible for the performance, integrity, and security of databases.
- Business Intelligence Analysts: Professionals who use data to drive business strategy and decision-making.
- Recent Graduates: Those with a background in computer science, information systems, or related fields looking to start their career in data-driven roles.
- Career Changers: Individuals transitioning into data-related roles from other fields.
- IT Professionals: Those looking to expand their skill set to include database management and SQL proficiency.
- Students: Upper-level undergraduate or graduate students in computer science, data science, or related programs preparing for internships or entry-level positions. This course is suitable for beginners with basic SQL knowledge looking to advance their skills, as well as experienced professionals aiming to refine their expertise and prepare for challenging interview questions in the data industry.
The Complete SQL Bootcamp: A Step-by-Step Approach
Friday, October 11, 2024
Master SQL with this hands-on master class
Preview this Course
Description
Brief Introduction:
The Complete SQL Bootcamp is a hands-on course designed to take you from the basics to a professional level. This comprehensive course will explore the principles of relational databases and the robust SQL programming language. It will equip developers with vital SQL skills to write queries for single and multiple tables, manipulate data within those tables, and create database objects.
Course Overview:
This step-by-step SQL course is designed to improve your SQL skills and is ideal for students who want to become proficient in SQL. Led by an experienced SQL Developer Instructor, this course offers a well-organized and engaging learning experience for those who want to master SQL.
Learning Objectives:
By the end of the course, you will learn how to:
Retrieve Data using basic SQL SELECT Statements
Restrict and Sort Data
Use Aggregate Functions
Apply Conditional Expressions
Generate Reports with Aggregated Data Using Group Functions
Display Data from Multiple Tables Using Joins
Utilize Window Functions
Work with Common Table Expressions (CTEs) using the WITH clause
Manage Data using Subqueries and Advanced Queries
Manage Tables using DML Statements
Create Sequences, Synonyms, Indexes, Views, and Schema Objects
Who is this course for?
This course is designed for learners at all levels, from beginners looking for a solid foundation to SQL professionals striving for mastery. No prior knowledge is necessary. It is suitable for users of any database, including Oracle, MySQL, Microsoft SQL Server, Amazon Redshift, and MySQL.
Who this course is for:
- Managers
- Data Analytics and Business Intelligence
- Data Scientists and Data Engineers
- Data Migrations Specialist
- Other Database Users
The Ultimate Modern SQL Course - 2024/25
Wednesday, October 2, 2024
All-in-one course for mastering SQL syntax and features with Snowflake, designed for the modern data landscape!
Preview this Course
Description
Welcome to The Ultimate Modern SQL Course! The only course you need to learn one of the most in-demand data skills in today’s workplace.
If we look at our modern data landscape we can see SQL everywhere, powering relational databases like MySQL and Postgres, enabling cloud-based analytics through platforms like BigQuery and Snowflake and even serving as interfaces for Big Data tools like Spark and Hadoop.
This course offers a one-stop shop for students of any skill level to learn all the essential SQL syntax and features, grounded in a deep understanding of how SQL has evolved to meet modern demands, such as cloud computing and Big Data.
Using the powerful cloud-native data platform Snowflake, we’ll analyse synthetic and real-world data through a combination of bite-sized theory lectures and hands-on exercises — equipping you with everything you need to become a SQL expert fit for the modern world!
Why Choose This Course?
6+ hours of high-quality content comprised of bite-sized videos of around 5 minutes, so you get what you need without the fluff!
Theory lectures that include architectural diagrams, graphics, code snippets, and overview slides to bookmark and study.
Interactive hands-on content in the Snowflake UI with a focus on ANSI-standard SQL code.
Experience working with and understanding both synthetic and real-world data.
A folder full of SQL code to accompany hands-on videos that you can run, edit and share!
A review quiz at the end of each section to reinforce the practical and theoretical concepts you've just studied.
Learn SQL in the context of modern data challenges like Big Data and the Cloud.
The perspective of a SQL professional instructor through the Q&A section.
Earn a certificate of completion when you complete the course to showcase your expertise.
What Will You Cover?
1. Course Setup
Create a free Snowflake trial account.
Download the hands-on SQL code.
Learn study methods to help it all go in and stay in!
2. Introduction to SQL and Snowflake
Learn about SQL's historical context and how it fits into the modern data landscape.
Have a crash course on Snowflake, the cloud-native data platform we'll be using for the course.
Have an introduction to the technical aspects of the SQL language.
Additional database concepts like the object model and access control.
3. Data Definition Language (DDL)
Learn SQL statements used to create and modify objects: CREATE, USE, SHOW, DESCRIBE, DROP & ALTER.
Learn about Data Types.
Learn about Constraints.
Have an introduction to SQL Syntax Best Practices.
4. Data Manipulation Language (DML)
Learn about SQL statements to generate and modify data: INSERT, UPDATE, DELETE, TRUNCATE & MERGE.
Learn the process of loading large amounts of data with Snowflake features: Stages, File Formats, COPY INTO <table>.
5. Query Fundamentals
Learn the many individual clauses of the select statement in detail: SELECT, FROM, WHERE, ORDER BY, GROUP BY & HAVING.
Learn about scalar and aggregate SQL functions.
Have an introduction to User-defined functions.
6. Intermediate Querying
Learn to combine table attributes with the JOIN clause.
Learn to modularise our SQL code with Subqueries.
Learn about Set Operators to compare result sets.
Learn about Conditional Expressions to control the flow of our data.
Learn about the View database object.
Learn about how to convert from one data type to another with Casting.
7. SQL Query Performance
Learn about the database Order Of Execution to help conceptualise how the database engine processes statements.
Learn about best practices when using different SQL clauses: JOIN, ORDER BY, WHERE and GROUP BY.
Learn how to use the EXPLAIN command and Snowflake's Query Profile Tool.
Learn about Snowflake-specific features for improving query performance: Caching and Materialized Views.
8. Advanced SQL Features
Learn about Window Functions and Window Frames.
Learn about Common Table Expressions (CTEs) and Recursive CTEs.
Learn about Transactions.
Learn about Collation.
Learn about User-defined Functions (UDFs) and Stored Procedures.
9. Processing Semi-structured Data
Have a crash course into what semi-structured data is.
Learn how to load semi-structured data and what their unique considerations are.
Learn how to query and access semi-structured data.
Learn what functions are unique for accessing semi-structured data.
Learn what are the unique considerations for loading binary semi-structured data.
One last thing - I'd love to hear from you! Share your experience taking the course by messaging me on Udemy or through LinkedIn. You can find me by searching 'Tom Bailey • Udemy Instructor'.
Ready to transform your SQL skills? Enrol now to get lifetime access to this comprehensive course and start mastering SQL for the modern data landscape today!
Who this course is for:
- This course is ideal for anyone looking to learn SQL to enhance their current job performance or pursue new career opportunities. SQL remains one of the most sought-after skills in today's job market.
- Experienced technology professionals in the fields of Data Engineering, Data Science & Data Analysis looking to take their Cloud and SQL skills to the next level.
- Professionals in data steward roles e.g. Project Managers. Getting closer to the technology can help make data-driven decisions and improve communication with technical team members.
- University & high school students studying SQL for the first time.
SQL Development with MS SQL Server Beginner to Master 2024
Sunday, August 4, 2024
Learn SQL (Structured Query Language) with MS SQL Server and T-SQL from Mac, Linux or Windows!
Preview this Course
Master SQL Development with MS SQL Server: Beginner to Master 2024!
Are you ready to elevate your data skills and become a proficient SQL developer? Our SQL Development with MS SQL Server: Beginner to Master 2024 course is designed to take you from a novice to an expert in no time!
Why Choose Our SQL Development Course?
Comprehensive Curriculum: Start with the basics and progress to advanced topics. Our course covers everything from SQL syntax and database design to complex queries and performance tuning. Each module is crafted to build on the last, ensuring a smooth learning curve.
Expert Instruction: Learn from industry professionals with years of experience in SQL development. Our instructors provide clear, practical guidance and real-world examples that help you apply your knowledge effectively.
Hands-On Experience: Gain valuable hands-on experience with practical exercises and projects. Our course includes interactive labs and challenges to solidify your skills and prepare you for real-world scenarios.
Flexible Learning: Access course materials anytime, anywhere. With on-demand video lessons and downloadable resources, you can learn at your own pace and revisit content as needed.
Up-to-Date Content: Stay current with the latest features and best practices in MS SQL Server. Our course material is regularly updated to reflect the most recent developments in SQL technology.
Certification Preparation: Prepare for SQL certification exams with confidence. Our course includes practice tests and study guides to help you succeed and advance your career.
SQL Mastery for Developers: Basics to Advanced Applications
Saturday, July 27, 2024
Forge ahead in SQL mastery, seamlessly blending theory and practice, minus the DB admin detour!
Unlock the Power of SQL: From Fundamentals to Advanced Applications
Ready to become a SQL wizard? Our blog series, "SQL Mastery for Developers," is your gateway to mastering SQL from the ground up. Whether you're new to databases or looking to sharpen your skills, dive into comprehensive tutorials designed to make you proficient in SQL.
What You'll Learn:
- Foundations of SQL: Master the basics of querying databases, from SELECT statements to JOIN operations.
- Data Manipulation Techniques: Learn INSERT, UPDATE, and DELETE commands to manage and modify data efficiently.
- Advanced Querying: Dive deeper into subqueries, window functions, and optimization techniques for complex data retrieval.
- Practical Applications: Explore real-world scenarios and case studies to apply SQL in business intelligence and data analysis.
Join a community of developers and data enthusiasts eager to harness the full potential of SQL. Our blog provides clear explanations, hands-on examples, and expert tips to empower you on your journey to SQL mastery.
Ready to take your SQL skills to the next level? Let's dive in and command your databases with confidence!
The Complete SQL Bootcamp 2022: Go from Zero to Hero
Friday, March 24, 2023
Free Coupon Discount - The Complete SQL Bootcamp 2020: Go from Zero to Hero
Become an expert at SQL! | Created by Jose Portilla
Students also bought
- SQL & Database Design A-Z™: Learn MS SQL Server + PostgreSQL
- The Complete Introduction to SQL for Data Analytics
- Oracle 12c SQL Tuning - the Ultimate Guide
- SQL Server 2017 Express Basics
- SQL for Beginners : The Easiest Way to Learn SQL - Step by Step
Preview this Udemy Course GET COUPON CODE
What you'll learn
- Use SQL to query a database
- Use SQL to perform data analysis
- Be comfortable putting SQL and PostgreSQL on their resume
- Requirements
- No prior technical experience is required! All you need a computer!
Description
Learn how to use SQL quickly and effectively with this course!
You'll learn how to read and write complex queries to a database using one of the most in demand skills - PostgreSQL. These skills are also applicable to any other major SQL database, such as MySQL, Microsoft SQL Server, Amazon Redshift, Oracle, and much more.
Learning SQL is one of the fastest ways to improve your career prospects as it is one of the most in demand tech skills! In this course you'll learn quickly and receive challenges and tests along the way to improve your understanding!
In this course you will learn everything you need to become a SQL Pro! Including:
Get started with PostgreSQL and PgAdmin , two of the world's most popular SQL tools
Learn he basics of SQL syntax
Analyzing data using aggregate functions with GROUP BY commands
Running advanced queries with string operations and comparison operations
Learn to use logical operators to add logic flow to your SQL queries
Learn common SQL JOIN commands
Learn to create tables and databases with constraints on data entries
Learn to use Python to further advanced your SQL skills
and much, much more!
This is course that put's you in control, having you set up and restore databases right at the start of the course, instead of watching someone else code. Every section comes with fresh challenge questions and tasks, modeled after real world tasks and situations.
I've spent years as an instructor both online and in-person at Fortune 500 companies, and this course is built to combine the best of both worlds, allowing you to learn at your own pace through an interactive environment. You will start with the basics and soon find yourself working with advanced commands, dealing with timestamp data and variable character information like a seasoned professional.
SQL is one of the most in demand skills for business analysts, data scientists, and anyone who finds themselves working with data! Upgrade your skill set quickly and add SQL to your resume by joining today!
I'll see you inside the course!
Check out the free preview videos for more information!
100% Off Udemy Coupon . Free Udemy Courses . Online Classes
SQL Crash Course For Beginners – Learn SQL with PostgreSQL
Monday, February 13, 2023
SQL Crash Course For Beginners – Learn SQL with PostgreSQL
Stand out: Become confident using SQL in any database – for Marketers, Business Analysts, Data Scientists, Researchers
Created by Samuel Lenk | Certified Talend Java SQL Data Integration ETL Developer | 4.5 hours on-demand video course
Let me take you back to 2009: Back then, I thought I had it all figured out. I had just finished my master’s degree and thought, “Now I’m ready to work on any data project and be the best. But then I joined my first project and walked into a meeting where I heard so many words that I had no idea what they meant. I began to feel insecure.
The month didn’t get better. In fact, it got worse. By the time the on-boarding was over, I was sitting there with all these tools, terms, tasks, and I was really frustrated. Fortunately, I met some great people along the way who had the willingness and talent to share their knowledge about things that just seemed weird to me. So I found help in simple words and precise examples. Finally, I began to understand.
What you’ll learn
- Use SQL to answer real questions
- Write advanced queries, like joins, groups and subqueries
- Become comfortable putting SQL and PostgreSQL on your resume
- Use available functions and operators in SQL
- Understand important database concepts
- Create your own databases
Recommended Course
- Oracle SQL Performance Tuning Masterclass (2023)
- The Complete PL/SQL Bootcamp : “Beginner to Advanced PL/SQL”
Complete SQL and Databases Bootcamp: Zero to Mastery [2022]
Wednesday, August 31, 2022
Free Udemy Coupon - Complete SQL and Databases Bootcamp: Zero to Mastery [2022] - Master SQL, Database Management & Design and learn to work with databases like PostgreSQL, MySQL + more. With Exercises!
- Created by Andrei Neagoie, Mo Binni
- English [Auto]
What you'll learn
- Become an expert in SQL and Database Concepts
- Understand SQL vs NoSQL, MongoDB vs MySQL vs PostgreSQL
- Add SQL, PostgreSQL, MySQL, Redis, Database Management/Design to your resume
- Learn to perform efficient and performant SQL queries using best practices
- Learn how Machine Learning, Data Science and Data Engineers use Big Data and databases
- Apply for SQL developer, Database Administrator, Business Analyst, Backend Developer and Business Intelligence roles
- Use the right SQL features to work with data efficiently and solve database problems
- Database best practices to design and manage your company data
- Learn to make business and market decisions based on user data
- Learn how to scale databases by using things like Sharding, Replication, etc...
- Create your own databases while using SQL to interact with the data
- Use real-world data to generate insights and reports using SQL
- Tons of exercises to practice what you learn and test your knowledge
- Help Sales/Marketing/Product managers make better decisions based on data analysis
- Advanced SQL topics like indexes, aggregates, caching to make your database queries efficient
- Learn how databases are used in Web & Mobile Applications, Machine Learning and other fields
- Learn how to handle user passwords and keep data safe
- Work with SQL across multiple tables and multiple databases
- Learn to use Redis for fast memory storage
- Master SQL joins
Description
Just launched with all modern SQL and Databases (PostgreSQL, MySQL, + more) features for 2021! Join a live online community of over 400,000+ students and a course taught by industry experts that have actually worked both in Silicon Valley and Toronto managing databases. This is one of the most in demand tech skills in the world right now with SQL being used for many years to come (it has been around since the 1970s and going stronger than ever)!
Using the latest best practices in SQL, Database Management and Database Design, this course is focused on efficiency. Never spend time on confusing, out of date, incomplete tutorials anymore. Graduates of Andrei’s courses are now working at Google, Tesla, Amazon, Apple, IBM, JP Morgan, Facebook, + other top tech companies.
We guarantee you this is the most comprehensive online resource on Databases like PostgreSQL and MySQL. This project and exercise based course will introduce you to all of the modern toolchain of an SQL developer or anyone using a database in the workplace (Product Manager, Business Analyst/Intelligence, Data Analyst, Data Scientists, Machine Learning Engineer, Web Developer, Mobile Developer + any role requiring insights from data). Along the way, we will learn practical and real world skills that will get you hired.
The curriculum is going to be very hands on as we walk you from start to finish of working with databases and SQL, all the way into learning how to scale databases, how to manage them, and even bonus material on working with Big Data, Caching using Redis, and connecting PostgreSQL to a Node.js server. We even talk about pros and cons of choosing an SQL Database vs NoSQL like MongoDB. We will start from the very beginning by teaching you SQL and Database Fundamentals and then going into advanced topics so you can make good decisions and work with any data that your company has no matter how complex!
The topics covered are:
- NoSQL (MongoDB) vs PostgreSQL, MySQL vs NewSQL
- SQL Theory And Concepts
- The Relational Model
- SQL Basics
- SQL Functions
- Data Modification Language / DML
- Data Query Language / DQL
- Subqueries
- Indexes
- SQL Filtering / WHERE Statement
- 3 Valued Logic
- SQL JOINS
- Window Functions
- Date Filtering and Timestamps
- SQL Aggregate Functions
- SQL Operator Precedense
- SQL ORDER BY
- SQL GROUP BY
- SQL Top Down Design
- SQL Bottom Up Design
- SQL Entity Relationship Diagram
- SQL Normalization
- Database Types
- The role of a DBMS
- Multi Table SELECT
- The Software Development Lifecycle / SDLC
- POSTGRES Role Management
- POSTGRES Permission Management
- POSTGRES Backup Strategies
- POSTGRES Transaction Management/ SQL Transactions
- POSTGRES/SQL Data Types
- SQL Views
- Redis Database
- Elasticsearch
- Connecting A Database To A Server/Web App (Node.js)
- Data Engineering (Kafka, Hadoop, etc...)
- Sharding
- Replication
- Backups
- Vertical + Horizontal Scaling
- Distributed vs Centralized Databases
- Big Data + Analytics
- Database Security (SQL Injections, Access Control, etc...)
+ more
With SQL you will be able to work with all databases like: PostgreSQL, MySQL, Oracle SQL, Microsoft SQL Server, IBM DB2, SQLite, MariaDB, Amazon Redshift, Presto, Apache Hive with Hadoop, and many many more because SQL is everywhere!
You see, data is everywhere and it is the most valuable asset in the world. All the top companies need people that can work with data. That is where this course comes in. Unlike most tutorials out there, this course encompasses many fields working with many databases. Whether you want to get into the tech industry, you’re a mobile or web developer, a data scientist, a machine learning engineer, a business analyst, even sales and marketing or you have your own company. Any role that requires you to work with data will need to know this valuable skill that is SQL (how to interact with databases, analyze, and use data).
Here is the thing though. There are many courses on this topic.
Let me tell you 3 reasons why this course is different from any other SQL/PostgreSQL/MySQL/Database tutorial online:
1. In this course you will learn to work with not just 1 but many Databases like MySQL, PostgreSQL, Microsoft Server, Redis, and so much more. No prior programming or technical experience is necessary. We take you from absolute zero, all the way to mastery. We will go above and beyond to not just teach you SQL commands but to teach you advanced techniques, best practices, database design and how to think about performance, security, and scalability.
2. This course is taught by actual professionals who have experience and have worked with databases for some of the largest companies in the world. Mo is a super star when it comes SQL. He has built software for the European Union, launched products for 5 Fortune 500 companies, and has consulted at Google. Andrei has worked on enterprise level apps for large tech firms in Silicon Valley as well as Toronto and has also taught others tech skills that got them into big companies like Google. By having both Andrei and Mo teach, you get to see different perspective and learn from 2 engineers as if you are working at a company together.
3. We are going to have fun here. The course starts off with you getting hired at Keiko Corp to investigate their recent Database breach. Because we believe in learning by doing, you will be doing tons of real life assignments and exercises along the way, and eventually get to the point where you can help Keiko Corp solve their mystery by looking at their databases and analyzing hidden information. Our goals is that everyone has fun and is successful after completing the course :)
This course is not about making you just watch along without understanding the principles so that when you are done with the course you don’t know what to do other than watch another tutorial. No! This course will push you and challenge you to go from an absolute beginner in SQL and Databases to someone that is in the top 10% of SQL and Database experts!
Taught By:
Andrei is the instructor of the highest rated Development courses on Udemy as well as one of the fastest growing. His graduates have moved on to work for some of the biggest tech companies around the world like Apple, Google, Tesla, Amazon, JP Morgan, IBM, UNIQLO etc... He has been working as a senior software developer in Silicon Valley and Toronto for many years, and is now taking all that he has learned, to teach programming skills and to help you discover the amazing career opportunities that being a developer allows in life.
Having been a self taught programmer, he understands that there is an overwhelming number of online courses, tutorials and books that are overly verbose and inadequate at teaching proper skills. Most people feel paralyzed and don't know where to start when learning a complex subject matter, or even worse, most people don't have $20,000 to spend on a coding bootcamp. Programming skills should be affordable and open to all. An education material should teach real life skills that are current and they should not waste a student's valuable time. Having learned important lessons from working for Fortune 500 companies, tech startups, to even founding his own business, he is now dedicating 100% of his time to teaching others valuable software development skills in order to take control of their life and work in an exciting industry with infinite possibilities.
Andrei promises you that there are no other courses out there as comprehensive and as well explained. He believes that in order to learn anything of value, you need to start with the foundation and develop the roots of the tree. Only from there will you be able to learn concepts and specific skills(leaves) that connect to the foundation. Learning becomes exponential when structured in this way.
Taking his experience in educational psychology and coding, Andrei's courses will take you on an understanding of complex subjects that you never thought would be possible.
--------
Mo is a Solutions Architect with over 7 years of experience in Software Architecture and Development. Having worked as a consultant for the majority of his career, he has seen it all.
He has worked on global applications for multi-nationals, governments and Fortune 500 companies.
Throughout his career he has seen every type of developer and development practice, and the one thing that he believes more than anything is that software development is a pragmatic team sport. Go fast alone, go far together!
My main goal with instructing is to teach the foundational knowledge to set you up for life-long learning. Software and development practices change often, but when you have the right foundation adapting to the constant change becomes easy!
See you inside the courses!
Who this course is for:
Both beginner and advanced professionals looking to learn modern SQL and Database principles
Professionals who are working with or will be working with databases and want to learn to work smart and efficiently using best practices
Everyone who is interested in one of the most in demand tech skill that will be around for many years to come: SQL
Developers, Data Scientists, Machine Learning Engineers, Business Analysts, Product Managers, Sales/Marketers, and anyone who uses data to make business decisions
Anyone interested in learning more about SQL, PostgreSQL, or basic data analysis to boost your resume
100% Off Udemy Coupon . Free Udemy Courses . Online Classes
Advanced SQL Bootcamp
Thursday, August 25, 2022
Advanced SQL Bootcamp - Take your SQL skills to the next level with our Advanced SQL Bootcamp
- Hot & new
What you'll learn
- Learn the power of Subqueries in SQL
- Discover how to use Window Functions and Partitions in SQL
- Understand advanced JOIN commands in SQL
- Learn about SQL Set Operations
- Discover Grouping Sets
- Building table relationships and schema structures in SQL
- Use SQL Transactions with Update and Set calls
- Understand Table Inheritance with SQL
- Create Views in SQL
- Learn how to use Stored Procedures
- Discover how to use Triggers across SQL Tables
- Understand general useful methods and commands in Advanced SQL
Description
Welcome to the best online course to take your SQL skills to the next level!
This course is designed to take you from basic SQL knowledge to a SQL Developer Professional. After completing this course you will have a better understanding of how tables and databases work as well as advanced capabilities in querying the information that is stored in a SQL database effectively.
SQL is a critical skill for the modern workforce and we've created an online course specifically designed to take your current SQL knowledge to an advanced level. We'll begin the course with a deep dive into understanding how to construct subqueries and common table expressions, afterwards we'll move on to discussing window functions and advanced Join operations. Then you'll learn about the power of sets, including set operations and grouping sets. We will continue by learning about larger scope topics such as schema structures, table relationships, table inheritance, and views. We'll also teach you how to create easy to call stored procedures and automatic triggers across your database. After each section we will test your skills with a set of exercise questions.
In this course, you'll learn everything you need to be an expert SQL developer, we cover the topics that other basics courses don't! In this course you'll learn about:
Subqueries
Common Table Expressions
Window Functions
Advanced Join Operations
Set Operations
Grouping Sets
Schema Structures and Table Relationships
Table Transactions
Views
Table Inheritance
Stored Procedures
Triggers
Useful Advanced Methods
and much more!
Not only does this course come with great technical learning content, but we also provide support in our Q&A Forums inside the course as well as access to our exclusive student community discord server where you can connect with other students. All of this material comes with a 30-day money back guarantee , so you can try the course completely risk free.
Enroll today and we'll see you inside the course!
Who this course is for:
- SQL Developers looking to upskill to the next level
Advanced SQL : SQL Expert Certification Preparation Course
Monday, May 30, 2022
Advanced SQL : SQL Expert Certification Preparation Course - Level Up Your Oracle SQL Knowledge From Intermediate to Advanced and Become an In-Demand Database SQL Expert in Oracle!
What you'll learn
- All the advanced subjects that you need for SQL Expert Certification
- Learn Advanced SQL Query with Hundreds of Examples!
- Write, Read, Analyze Any Advanced SQL Codes Easily
- Over 125+ Lectures, 12+ Hours On-Demand Content
- Learn Advanced SQL Functions in Oracle
- Get a Better Job and Income!
- Analytical SQL Functions in Oracle
- Regular Expressions
- Introducing Database Objects
- Creating and Using Indexes
- Creating and Using Views
- Creating and Using Synonyms
- Creating and Using Sequences
- Data Dictionary Views
- Using Advanced Subqueries
- Generating (Dynamic) SQL Scripts
- Advanced Data Manipulations
- Advanced Aggregation Techniques
- Windowing functions for working with ordered data sets
- Lifetime Support from the Authors
- Working Materials
- Weekly Quizzes & Assessments
Master SQL For Data Science
Tuesday, March 8, 2022
Master SQL For Data Science - Become a SQL query wizard and never be afraid to look at a large SQL query again!
What you'll learn
- Write complex SQL statements to query the database and gain critical insight on data
- Practice Every Step of the Way by Working Through 100+ Puzzles (with solutions)
- Transition from the Very Basics to a Point Where You can Effortlessly Work with Large SQL Queries
- Learn Advanced Querying Techniques
- Become a Master SQL Developer
Description
LAST UPDATED: November 2021
This course will turn you into a SQL query wizard. You'll learn the skills you need to extract critical insight from data sitting in a database. There are over 100 puzzles scattered throughout the course with in-depth solutions providing plenty of opportunity for you to practice. After completing the course and all of it's assignments, I promise you, you'll never be afraid to look at a large SQL query again.
Just like my other courses, I follow the no-student-left behind principle; which means that I start from the very basics. You do not need any prerequisites to take this course. We move step by step into more advanced topics as we delve into the world of advanced querying techniques using subqueries, aggregations, joins, rollups and cubes, window functions, transposing & ranking data and using conditional expressions in very interesting ways.
With over 17,000 students and a 4.6 rating, you won't find a better source to learn SQL for Data Science elsewhere.
Don’t just take it from me, take it from other students that have taken this course.
★★★★★ Here’s reviews from real students that took this course ★★★★★
★★★★★ You really can't beat this course for the value. The instructor is excellent (clear explanations, easy to understand, extremely knowledgeable), and his style of constantly requiring the student to apply what they've just learned with practice queries proves to be a very effective method of learning. He covers an amazing amount of ground in just 9 hours. It was just the refresher course I needed after not having done much SQL in the past year.
★★★★★ Just one word - Exceptional!! Don't give a second thought, just go for it. Thanks a lot Mr.Imtiaz Ahmad. The way concepts are explained in the lectures are quite good. The assignments gave me so much confidence and I feel so happy that I am quite well versed in SQL now. Watch the videos, try out the assignments on your own and practice as much as you can with different problems.
★★★★★ It's a brilliant course that can help to understand SQL from easy concepts to difficult tasks. Besides, the explanations are always clear, so they let me learn a lot without searching for additional information in Internet. The course contains lots of practical tasks that allowed me not only to understand queries, but to also use them correctly.
★★★★★ Great! I really like the exercises that are included. They are essential to learning the course content.
★★★★★ After attending the course and doing most of the exercises, I feel very confident in SQL world. The course is designed well and every lesson gives you good amount of knowledge. Explanation and exercises are worth learning and practicing.
Topics covered in this course:
What is a Database
Installing Postgres
Creating Tables
SELECT Statement
WHERE Clause
AND & OR
Filtering Operators
ORDER BY
LIMIT
DISTINCT
Renaming Columns
Functions
GROUP BY & HAVING Clauses
Aggregation Queries
Subqueries
CASE Clause
Correlated Subqueries
Table Joins
INNER and OUTER Joins
UNION, UNION ALL and EXCEPT Clauses
Window Functions for Analytics
+ over 100 puzzles distributed throughout the course
Enroll today to become a Master SQL Data Science Developer. As always, I offer a 30 day money back guarantee if you're not satisfied, but you won't need it.
Who this course is for:
- Anyone who wants to break into the data analyst or data scientist role
- Anyone interested in become a SQL query wizard
SQL for Healthcare
Saturday, February 26, 2022
SQL for Healthcare
Let's Learn SQL and Healthcare Analytics Concepts Together
Hot & New
What you'll learn
- Using SQL to answer questions in healthcare
- Reading SQL
- Writing SQL
- Navigating a data enviornment
Description
SQL for Healthcare looks to provide students a single course to learn SQL and United States Healthcare concepts together. Through the use of MySQL (an open source and free tool) we will explore various use cases like patient volumes, emergency room throughput, and procedures to learn new SQL and healthcare analytics skills. I will be taking an approach of presenting healthcare topics briefly before diving into working examples using SQL. My intent is to help us apply technical concepts of the SQL language while at the same time learning new healthcare knowledge. Following each lecture, there will be an assignment for students to really apply and grow beyond what we cover over video content. I have found this approach really helps with long term retainment of skills. This course is great for anyone new to healthcare and/or SQL and is meant to help others jump start a career in healthcare analytics.
This course was created by me - Mark Connolly, MEng. I'm currently a Business Intelligence Lead and co-lead for the virtual Tableau Healthcare User Group. I have almost 10 years of experience in the healthcare analytics space in general. I have used SQL heavily in my most recent role to answer many healthcare clinical analytics questions.
Beyond my experience working directly with SQL, I have also developed internal Tableau training programs and provided 100's (if not 1000's) of hours of training support to analysts both at his current organization and externally. I am also the creator for the strongly reviewed Tableau for Healthcare course on Udemy.
Please note that this course utilizes training data and is not reflective of any current or past performance or clinical data for any patient, health system, insurance provider, or any other entity. All data is fake and made available for educational purposes only.
Who this course is for:
Beginner or Inspiring to be Healthcare Analysts
SQL Mastery For Data Science
Wednesday, February 23, 2022
SQL Mastery For Data Science - Up Your Skills with SQL Tips and Tricks for Data Science
New
What you'll learn
- SQL for Data Science
- Learn practical applications of SQL queries for data analysis
- How to join tables and calculate rolling averages
- How to use window functions, aggregate and filter data
- Learn how to retrieve data
- Much more
Description
Gain the career-building SQL skills you need with this course. Through hands-on learning you’ll load, extract, and manipulate data from relational databases. Study at your own pace and grow your SQL skills.
In this course, we'll go over the most common data science and analytics questions that you'll receive, such as how to find the top products per category, how to find active employee counts by month, how to calculate rolling average of sales and much more.
We'll start by showing you how to retrieve data from a database using SQL Server and AdventureWorks, then show you how to aggregate, join, and filter your results to create context for your analysis.
We'll also get into answering more complex questions with ranking, moving averages, and window functions.
Learn how to retrieve data, join tables, calculate rolling averages and rankings, work with dates and times, use window functions, aggregate and filter data, and much more.
SQL is one of the most requested skills in Data Science. This course is great for anyone looking to build their skills and take it to the next level.
Learn to use Structured Query Language (SQL) to extract and analyze data stored in databases. You’ll first learn to extract data, join tables together, and perform aggregations. Then you’ll learn to do more complex analysis and manipulations using subqueries, and window functions.
By the end of the course, you’ll be able to write efficient SQL queries to successfully handle a variety of data analysis tasks.
Who this course is for:
- Programmers, Developers, DevOps, Data miners
Data Analytics: SQL for newbs, beginners and marketers
Tuesday, February 1, 2022
Free Coupon Discount - Data Analytics: SQL for newbs, beginners and marketers, Dominate data analytics, data science, and big data | Created by Lazy Programmer Inc.
Students also bought
- The Complete SQL Bootcamp 2020: Go from Zero to Hero
- SQL - MySQL for Data Analytics and Business Intelligence
- SQL For Data Science With Google Big Query
- SQL Server 2017 Express Basics
- Oracle 12c SQL Tuning - the Ultimate Guide
Preview this Udemy Course GET COUPON CODE
Description
It is becoming ever more important that companies make data-driven decisions.
With big data and data science on the rise, we have more data than we know what to do with.
One of the basic languages of data analytics is SQL, which is used for many popular databases including MySQL, Postgres, SQLite, Microsoft SQL Server, Oracle, and even big data solutions like Hive and Cassandra.
I’m going to let you in on a little secret. Most high-level marketers and product managers at big tech companies know how to manipulate data to gain important insights. No longer do you have to wait around the entire day for some software engineer to answer your questions - now you can find the answers directly, by yourself, using SQL!
In this course, SQL for marketers, we'll start from the basics - installing SQL onto your Mac, Linux, or Windows machine and explaining what a relational database is. Next, we'll look at basic tasks like creating tables and loading data into those tables. We will look at a wide variety of SQL commands and I will show you how to speed things up using indexes.
Once you know all the SQL commands we will start doing advanced examples - answering questions marketers and business people often have, like where are customers dropping off in our sales funnel? And which of our locations has the highest revenue?
In the last section, we'll do Advanced SQL queries on Spark, the big data framework that is the successor to MapReduce and also runs on top of Hadoop. I will teach you how to install Spark, create a cluster very quickly on Amazon EC2, and run SQL queries, allowing you to apply everything you learned up until this point in a big data environment.
Do you want to know how to optimize your sales funnel using SQL, look at the seasonal trends in your industry, and run a SQL query on Hadoop? Then join me now in my new class, SQL for marketers! Dominate data analytics, data science, and big data!
TIPS (for getting through the course):
Watch it at 2x.
Take handwritten notes. This will drastically increase your ability to retain the information.
Ask lots of questions on the discussion board. The more the better!
Write code yourself, don't just sit there and look at my code.
Who this course is for:
This course is for not only marketers but anyone who wants to be able to answer data-related questions on their own
Students who want a different approach to learning SQL
Professionals who are exposed to data but can't yet leverage its power
Developers who build web-applications but don't yet know how to use a database backend
Product managers who want to make data-driven decisions
100% Off Udemy Coupon . Free Udemy Courses . Online Classes
Subscribe to:
Posts (Atom)