{keyword};select Dbms_pipe.receive_message(chr(108)||chr(98)||chr(116)||chr(86),5) From Dual-- -

: DUAL is a special one-row table in Oracle used to execute functions that don't need data from a specific table [6].

The goal of this specific "Sleep" command isn't to steal data immediately, but to . If the application takes exactly 5 seconds longer than usual to respond when this string is entered, the attacker knows the database is vulnerable to SQL injection [2]. Once confirmed, they can use similar time-based techniques to extract sensitive data one character at a time. How to Protect Your System : DUAL is a special one-row table in

It looks like you've shared a snippet of code designed for an attack, specifically a time-based blind injection [1, 2]. Technical Breakdown Once confirmed, they can use similar time-based techniques

Use "Prepared Statements" so the database treats the input as literal text, not executable code [7]. : This is an obfuscated way of writing the string "lbtV

: This is an obfuscated way of writing the string "lbtV." Attackers use CHR() codes to bypass simple security filters that look for specific words [5]. ,5 : This tells the database to wait for 5 seconds [2].