[PortSwigger, 3/16 SQLi] Атака UNION с внедрением SQL...

Sql - How null values are treated in union/union all in MySQL?

SQL-инъекции: UNION атаки

SQL-инъекции\' union select null, null, null

Sql injection \"union select null\" - CodeProject

How the SQL UNION Operator Deals with NULL Values

Eliminate Null Values in a Cross Tab Query — SQLServerCentral

Just filter out records with a NULL before doing your crosstab.

Exploiting 2nd Order SQL Injection | by Sandro Einfeldt (hckTheCt)

ORDER+BY+1+UNION+ALL+SELECT+null, null, null, null, null, null...

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Why is a union of two null-results automatically casted to type text ? - Post...