| Re: how to give the ranks to the students? [message #1484] |
Mon, 06 May 2002 05:49  |
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Mahesh Rajendran
Messages: 10707
Registered: March 2002
Location: oracleDocoVille
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Senior Member
Account Moderator |
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you have not clearly mentioned about which RANK ur are looking into?
if you are looking for ANALYTIC FUNCTION RANK
this will help you.
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The following statement ranks the employees within each department based on their salary and commission. Identical salary values receive the same rank and cause nonconsecutive ranks.
SQL> SELECT deptno, ename, sal, comm,
2 RANK() OVER (PARTITION BY deptno ORDER BY sal DESC, comm) as rk
3 FROM emp;
DEPTNO ENAME SAL COMM RK
---------- ---------- ---------- ---------- ----------
10 KING 5000 1
10 CLARK 2450 2
10 MILLER 1300 3
20 SCOTT 3000 1
20 FORD 3000 1
20 JONES 2975 3
20 ADAMS 1100 4
20 SMITH 800 5
30 BLAKE 2850 1
30 ALLEN 1600 300 2
30 TURNER 1500 0 3
30 WARD 1250 500 4
30 MARTIN 1250 1400 5
30 JAMES 950 6
14 rows selected.
SQL>
--------------------------------------------------
if you are looking into conventional rank based on marks use a decode funtion and compute the rank.!!.
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