MySQL SYSDATE() Function

 The SYSDATE() function in MySQL is used to return the current date and time, with a precision of the moment when the function is executed. It is similar to the NOW() function, but the key difference is that SYSDATE() returns the time when it is called, while NOW() returns the time at the start of the query execution.

Syntax:

SYSDATE();

Example Usage:

SELECT SYSDATE();

This will return the current date and time in the format YYYY-MM-DD HH:MM:SS.

Key Differences between SYSDATE() and NOW():

• SYSDATE() gives the actual time at the point the function is executed.
• NOW() gives the time when the query starts, regardless of how long the query takes to execute.

Example:

SELECT NOW(), SYSDATE();

If you run this query, NOW() will return the time when the query began, while SYSDATE() will return the time when it was executed, which could differ if the query took time to process.