Distinct function in view

Question

Hi i am having one query which is not getting executed in 10g database but in 9i it is getting executed.
it is a select statement which uses distinct function on a view.
Eg. select distinct(custid) from cust_view cview (where custid is the column present in the view cust_view and cview is the alias name)
is it the problem with the database or the query.
If i give select (custid) from cust_view cview it is working.is there any parameter to be set in database or distinct or any other function can't be used on the views.
pls help

Answer 1

Instead of waiting for the query to be execute. you can only fetch the execution plan of the query. like:
SQL> set autot off
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SQL> set autot traceonly
SQL> select * from emp where empno = 7369;
Execution Plan
Plan hash value: 3956160932
| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT  |      |     1 |    37 |     3   (0)| 00:00:01 |
|*  1 |  TABLE ACCESS FULL| EMP  |     1 |    37 |     3   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   1 - filter("EMPNO"=7369)
Statistics
          1  recursive calls
          0  db block gets
          4  consistent gets
          0  physical reads
          0  redo size
        822  bytes sent via SQL*Net to client
        381  bytes received via SQL*Net from client
          2  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
          1  rows processed
SQL> set autot off
SQL>