SQL commands allow you to interact with database tables. The SELECT statement retrieves data from a database table, the INSERT statement adds new records to a table, the UPDATE statement modifies existing records in a table, and the DELETE statement removes records from a table.

1. Introduction to
SQL Commands
An overview of SQL commands and syntax

2. SELECT
Statement
Retrieve data from a
database

3. INSERT
Statement
• Insert new records into a table

4. UPDATE Statement
• Modify existing records in a table

5. DELETE Statement
• Remove records from a table