select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null,null,e,f from table3.
Selecting constants without referring to a table is perfectly legal in an SQL statement: SELECT 1, 2, 3. The result set that the latter returns is a single row containing the values.
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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Yes! I found the error! It's right after the word "find" and before "1"...
Войдите в аккаунт и добавьте его в плейлист.
Плохо получается, если всю семью на своих плечах тянет один человек. Особенно всё ужасно, если этим...
‘union all select’ : combines two or more select statements into one query and returns all rows ‘order by’ : used to sort
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Times Tables 2-12 – One Worksheet.