SQL

The language for querying relational data. Works everywhere.

Start learning Practice & quiz SQLBolt (interactive)

1

Foundations of SQL & Relational Databases

2

Sorting, Limiting, and Pattern Matching

3

Modifying Data

4

Aggregation and Grouping

5

Joining Tables

6

Advanced SQL — Subqueries, Schema Design & Transactions

7

Deeper Dives