select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
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.
The CAST() function converts a value (of any type) into a specified datatype.
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...
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character.
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
Ref: 999999.9' union all select 99,2 and '0'='0.
The null character (also null terminator or null byte) is a control character with the value zero. It is present in many character sets, including ISO/IEC 646 (or ASCII), the C0 control code...
11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –- No Error - Syntax is right.
In R language, NULL … Continue reading R null values: NULL, NA, NaN, Inf.