(select (case When (2593=6942) Then 2593 Else 2593*(select 2593 From Information_schema.character_sets) End)) Official

Since that is false, it attempts to execute 2593 * (SELECT 2593 FROM INFORMATION_SCHEMA.CHARACTER_SETS) .

If you are seeing this in your web server logs or as an input in your application: Since that is false, it attempts to execute

This is often used in blind SQL injection to test if a database is vulnerable. By forcing the database to multiply a value by every row in a standard table like INFORMATION_SCHEMA , an attacker can cause a "Time Delay" or a "Heavy Query" to confirm the injection point exists. Security Implications Since that is false