select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null,null,e,f
Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it works can somebody help me...
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Войдите в аккаунт и добавьте его в плейлист.
Yes! I found the error! It's right after the word "find" and before "1".
Плохо получается, если всю семью на своих плечах тянет один человек. Особенно всё ужасно, если этим...
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Error 1: "Find the error" is a sentence and should end with a period. Error 2: "its" is possessive but should be a contraction of "it is:" therefore, it should
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SELECT 2 AS value UNION ALL SELECT NULL ). SELECT l.* FROM t_left l WHERE