Wierd Query

Question

Hi,
I have a problem regarding a query.
In the query i want to get the values which are greater than some specific value.
Its some thing like this..
SELECT blah..blah..
FROM X
WHERE x.col1 > (SELECT blah1 FROM Y where someconditions)
Since the sub query returns multiple records (and it should return multiples) i cant use > sign here..
So is there anyway to overcome this and fix the query..
thanks in advance..
/garuka

Answer 1

You can use ALL or ANY operator. Below is an example with ALL
ALL - will return all the rows greater than the min value from the subquery
ANY - will return all the rows greater than the max value from the subquery
SQL> create table tab1(no number(10));
Table created.
SQL> create table tab2(no number(10));
Table created.
SQL> insert into tab1 values(10);
1 row created.
SQL> insert into tab1 values(20);
1 row created.
SQL> insert into tab1 values(30);
1 row created.
SQL> insert into tab2 values(21);
1 row created.
SQL> insert into tab2 values(22);
1 row created.
SQL> insert into tab2 values(23);
1 row created.
SQL> insert into tab2 values(25);
1 row created.
SQL> insert into tab1 values(40);
1 row created.
SQL> insert into tab1 values(45);
1 row created.
SQL> commit;
Commit complete.
SQL> select * from tab1
  2  /
        NO
        20
        30
        40
        45
        10
SQL> select * from tab2;
        NO
        22
        23
        25
        21
SQL> select * from tab1 where no > all(select no from tab2);
        NO
        30
        40
        45
SQL>