SQL

The language of databases

SQL (Structured Query Language) is the universal way to ask questions of a relational database. Every web app, analytics dashboard and report ultimately leans on SQL.

Chapters

1. 1Introduction to SQL
2. 2Setting up SQL
3. 3SQL Syntax
4. 4Variables
5. 5Data Types
6. 6Operators
7. 7Conditional Statements
8. 8Loops
9. 9Functions
10. 10Arrays and Collections
11. 11Strings
12. 12Objects and Structures
13. 13Error Handling
14. 14Modules and Packages
15. 15Input, Output and Files
16. 16SQL Syntax Cheatsheet
17. 17Best Practices and Next Steps