Alternate for analytic functions

Question

Hello All,
I'm trying to write a query without using analytic functions.
Using Analytic func,
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
"CORE     11.2.0.2.0     Production"
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
SELECT id, sal, rank() OVER (PARTITION BY ID ORDER BY SAL) rnk FROM
(SELECT 10 AS id, 100 AS sal FROM DUAL
    UNION ALL
    SELECT 10, 300 FROM DUAL
    UNION ALL
    SELECT 10, 400 FROM DUAL
    UNION ALL
    SELECT 20, 200 FROM DUAL
    UNION ALL
    SELECT 20, 200 FROM DUAL
    UNION ALL
    SELECT 20, 300 FROM DUAL
    UNION ALL
    SELECT 30, 100 FROM DUAL
    UNION ALL
    SELECT 40, 100 FROM DUAL
    UNION ALL
    SELECT 40, 200 FROM DUAL
    ) Expected results. I want these results without analytic functions.
10     100     1
10     300     2
10     400     3
20     200     1
20     200     1
20     300     3
30     100     1
40     100     1
40     200     2

Answer 1

Hi,
SamFisher wrote:
Thank You Frank. That was simple.
I was trying to get the reults without using analytical functions. Just trying to improve my SQL skills. Yes, I admit that practicising using the wrong tools can improve your SQL skills, but I think there's a lot to be said for practising using the right tools, too.
I tried all sort of things. I thought hierarchical query would do it but hard luck for me.Do you want to use a CONNECT BY query for this? Here's one way:
WITH     got_max_level            AS
     SELECT       id
     ,       sal
     ,       MAX (LEVEL)     AS max_level
     FROM       table_x
     CONNECT BY NOCYCLE  id        = PRIOR id
          AND          sal       >= PRIOR sal
          AND     (   sal       >  PRIOR sal
               OR  ROWID > PRIOR ROWID
     GROUP BY  id
     ,            sal
,     got_cnt          AS
     SELECT       id
     ,       sal
     ,       COUNT (*)     AS cnt
     FROM       table_x
     GROUP BY  id
     ,            sal
SELECT       x.id
,       x.sal
,       l.max_level + 1 - c.cnt     AS rnk
FROM       table_x        x
JOIN       got_max_level  l  ON   x.id     = l.id
                     AND      x.sal     = l.sal
JOIN       got_cnt      c  ON      x.id     = c.id
                     AND      x.sal     = c.sal
ORDER BY  x.id
,            x.sal
;This is even less efficient, as well as more complicated, than the scalar sub-query solution.