Mega'and(select*from(select Sleep(2))a/**/union/**/select 1)=' Direct

: This is used to combine the results of the original query with a new query, often used to extract data like usernames or passwords.

: This tells the database to wait for 2 seconds before responding. : This is used to combine the results

: A WAF can detect and block common patterns like sleep() or union select before they even reach your server. : This is used to combine the results