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.
I have come across some code that says … What exactly is this doing? Is it getting the field names unitcost and markup? Why would you use "select null as..."? New to this sorry. Thanks.
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...
Note: A NULL value is different from a zero value or a field that contains spaces.
Returns NULL if there are zero input rows or expression evaluates to NULL for all rows. Examples. SELECT FORMAT("%T", ARRAY_CONCAT_AGG(x)) AS array_concat_agg FROM ( SELECT [NULL, 1, 2, 3, 4] AS x UNION ALL SELECT NULL UNION ALL SELECT [5, 6] UNION ALL SELECT [7, 8...
NULL is special in SQL. NULL indicates that the data is unknown, inapplicable or even does not exist.
Nowe try this: SELECT CAST (NULL AS varchar(25)) AS Column1 INTO dbo.Frank1.
SELECT CHAR(0x66) (S) SELECT 0x5045 (this is not an integer it will be a string from Hex) (M)