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Code School

The Sequel to SQL

Learn the most important parts of the SQL language so you can create tables with constraints, use relationships, and write powerful join queries.

SQL is a domain-specific language used in programming and designed for managing data held in a relational database management system.

SQL is used to manage and organize data in all sorts of systems in which various data relationships exist.

In this course, you will learn the most important basics of the SQL language in order to create tables with constraints, relationships, and write other powerful queries.

This course is for anyone who wants to learn the SQL language.

There are no prerequisites for this course.

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What's inside

Syllabus

Aggregate Functions

Table Constraints

Normalization and Relationships

Inner Joins, Aliases, and Outer Joins

Subqueries

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops core relational database management skills and deepens database querying knowledge

Teaches valuable table creation and data organization strategies

Builds a strong foundation for SQL language in database management

Taught by Gregg Pollack, an experienced instructor in data management

Suitable for beginners and those seeking to enhance their SQL skills

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Code School: The Sequel to SQL with these activities:

Beginners Guide to SQL

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Sharpen your SQL knowledge by following guided lessons

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Identify a resource that offers introductory SQL lessons
Reserve time every day to complete the lessons
Take notes as you follow along
Practice writing queries to solidify concepts

Join a study group and discuss SQL concepts

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Joining a study group can help you learn from others and reinforce what you've learned in class.

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Find a study group that meets regularly
Come prepared to discuss the assigned topics
Participate in discussions and ask questions

Write SQL queries to retrieve data

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Practicing writing SQL queries will help you develop the skills you need to extract meaningful information from your database.

Browse courses on SQL Queries

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Start with simple queries and gradually increase the complexity
Use a variety of SQL operators and functions
Test your queries on different datasets

Four other activities

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Practice SQL queries

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Practice writing and executing SQL queries to solidify your understanding of the language.

Browse courses on SQL Syntax

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Create a database and table
Insert data into the table
Write a simple query to select data
Write a query to filter data
Write a query to join tables

Create a database schema

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Creating a database schema will help you practice the skills you'll learn in this course, such as creating tables, defining relationships, and enforcing constraints.

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Identify the entities and relationships in your data
Design a table structure for each entity
Define relationships between tables using foreign keys
Enforce constraints to ensure data integrity
Test your schema by inserting and querying data

Follow online tutorials on SQL joins

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Following tutorials on SQL joins will help you understand how to combine data from multiple tables.

Browse courses on SQL Joins

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Find tutorials that cover the different types of joins
Follow the steps in the tutorials to create your own joins
Test your joins by querying your database

SQL Practice Problems

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Gain proficiency in SQL querying through focused practice

Browse courses on SQL Queries

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Find coding challenges related to SQL queries
Attempt to solve the problems independently
Review solutions to identify areas for improvement

Career center

Learners who complete Code School: The Sequel to SQL will develop knowledge and skills that may be useful to these careers:

Database Administrator

Database Administrators are responsible for managing and maintaining databases, ensuring that they are up-to-date, secure, and running smoothly. This course can help you develop skills in SQL, which is critical for managing and querying databases, making you a more effective Database Administrator.

See salaries and explore the career path for Database Administrator

Data Architect

Data Architects design and implement data management solutions. They need to be proficient in SQL to design and manage databases. This course can help you develop strong SQL skills, providing you with a foundation for a successful career as a Data Architect.

See salaries and explore the career path for Data Architect

Database Developer

Database Developers design and develop databases. They need to be proficient in SQL to create and manage databases. This course can help you develop strong SQL skills, providing you with a foundation for a successful career as a Database Developer.

See salaries and explore the career path for Database Developer

Quantitative Analyst

Quantitative Analysts use mathematical and statistical models to analyze financial data and make investment decisions. SQL is commonly used by Quantitative Analysts to query and analyze large datasets. This course can help you develop strong SQL skills, enabling you to contribute to the development and implementation of quantitative models.

See salaries and explore the career path for Quantitative Analyst

Business Intelligence Analyst

Business Intelligence Analysts use data to help businesses make better decisions. They need to be proficient in SQL to query, analyze, and visualize data. This course can help you develop strong SQL skills, providing you with a foundation for a successful career as a Business Intelligence Analyst.

See salaries and explore the career path for Business Intelligence Analyst

Data Scientist

Data Scientists use advanced statistical and machine learning techniques to build models and analyze trends from large volumes of data. Proficiency in SQL is important to Data Scientists, as they need to work with structured data to uncover valuable insights. This course may help you develop strong SQL skills, providing you with a solid foundation in data analysis.

See salaries and explore the career path for Data Scientist

Operations Research Analyst

Operations Research Analysts use mathematical and statistical techniques to improve the efficiency and effectiveness of business operations. SQL is commonly used by Operations Research Analysts to query and analyze operational data. This course can help you develop strong SQL skills, enabling you to contribute to the design and implementation of operations research models.

See salaries and explore the career path for Operations Research Analyst

Data Engineer

Data Engineers design, build, and maintain data pipelines to ensure that data is available and reliable for analysis. SQL is widely used by Data Engineers for building data pipelines and performing data transformations. This course can help you develop solid SQL skills, enabling you to contribute to the design and implementation of data-driven solutions.

See salaries and explore the career path for Data Engineer

Software Engineer

Software Engineers design, develop, and maintain software applications. SQL is often used by Software Engineers for storing and managing data within applications. This course can help you build a foundation in SQL, enabling you to contribute to the design and implementation of data-driven applications.

See salaries and explore the career path for Software Engineer

Consultant

Consultants provide advice and guidance to businesses on a variety of topics, including data management and analytics. SQL is often used by Consultants to query and analyze data to help businesses make better decisions. This course can help you develop SQL skills, enabling you to contribute to consulting projects and provide valuable insights to clients.

See salaries and explore the career path for Consultant

Marketing Analyst

Marketing Analysts analyze data to help businesses understand their customers and make better marketing decisions. SQL is often used by Marketing Analysts to query and analyze customer data. This course may help you build a foundation in SQL, enabling you to contribute to marketing campaigns and customer analysis.

See salaries and explore the career path for Marketing Analyst

Market Researcher

Market Researchers conduct surveys and analyze data to provide insights about customer preferences and market trends. SQL is often used by Market Researchers to query and analyze survey data. This course may help you build a foundation in SQL, enabling you to contribute to market research studies and provide valuable insights to businesses.

See salaries and explore the career path for Market Researcher

Financial Analyst

Financial Analysts analyze financial data to make investment recommendations. SQL is used by Financial Analysts to query and analyze financial data. This course can help you develop SQL skills, enabling you to extract insights from financial data and make better investment decisions.

See salaries and explore the career path for Financial Analyst

Product Manager

Product Managers are responsible for defining and managing the roadmap of a product. They need to be able to understand and analyze data to make informed decisions. This course can help you develop SQL skills, enabling you to better understand and analyze product usage data, which can inform your product decisions.

See salaries and explore the career path for Product Manager

Data Analyst

Data Analysts study data using sophisticated statistical techniques to provide meaningful insights to help businesses make more informed decisions. This course may help you build a foundation in SQL and prepare you to query, analyze, and visualize datasets, a core skill for Data Analysts.

See salaries and explore the career path for Data Analyst

Reading list

We've selected 15 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Code School: The Sequel to SQL.

Database Systems: The Complete Book

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This comprehensive textbook covers a wide range of database topics, including SQL, database design, and data mining. It valuable resource for students and professionals alike.

Code School

The Sequel to SQL

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What's inside

Syllabus

Good to know

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Activities

Career center

Reading list

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