The specific syntax you provided ( UNION ALL SELECT 34,'qbqvq'||'uCXRWiFuos'||'qqbqq',34... ) is a common technique used in security testing to: in a database table. Identify which columns can display string or numeric data.
: Techniques like prepared statements and parameterized queries. The specific syntax you provided ( UNION ALL
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Assistance with for a legitimate data analysis project. Set Operators - UNION (Transact-SQL) - Microsoft Learn
Information on against these types of queries.