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select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null
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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...SELECT NULL,NULL,NULL,version(),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL
‘union all select’ : combines two or more select statements into one query and returns all rows ‘order by’ : used to sort
Yes! I found the error! It's right after the word "find" and before "1".
...par=1 or (select count(*)from(select 1 union select 2 union select 3)x group by concat(mid((select pass from users limit 1),1
It provide C programs like Looping, Recursion, Arrays, Strings, Functions, File Handling and some advance data structures.
And as we learned earlier, no NULL value can satisfy an equality condition, so the records from a