The CHAR codes translate to qpxbq1qvpjq . By forcing the database to display this string in an error message, an attacker can confirm that the application is vulnerable to SQL injection [2].
It uses the CONVERT function to force a data type error (converting a string to an integer). The CHAR codes translate to qpxbq1qvpjq
It looks like you’ve shared a snippet of an used for automated database testing or exploitation [1]. The CHAR codes translate to qpxbq1qvpjq