MySQL TRUNCATE TABLE Statement: Delete All Rows Quickly

The 'TRUNCATE TABLE' statement in MySQL is used to remove all rows from a table. It's a powerful tool for quickly clearing out data, but it's important to understand its implications before using it.

Syntax:

TRUNCATE TABLE table_name;

Key Points:

• Removes All Rows: This statement deletes all existing data from the specified table. It's not a selective operation like the 'DELETE' statement.
• Resets Auto-Increment: The auto-increment counter for the table is reset to zero.
• Faster Than DELETE: 'TRUNCATE TABLE' is generally faster than 'DELETE' because it doesn't create transaction logs.
• Irreversible: The operation cannot be undone. Exercise caution before using 'TRUNCATE TABLE'.
• Requires DROP Privilege: You need the 'DROP' privilege on the table to execute this statement.

Example:

TRUNCATE TABLE employees;

This statement will remove all rows from the 'employees' table. Be sure you truly intend to delete all data before executing this command.