How can I change this request, so I can display the name and partitions in a r
How can I change this request, so I can add the ID of the table SPRIDENfrom now on gives me what I want:
1,543 A05 24 A01 24 BAC 24 BAE 24 A02 20 BAM 20
SELECT sortest_pidm,
max(decode(rn,1,sortest_tesc_code)) tesc_code1,
max(decode(rn,1,score)) score1,
max(decode(rn,2,sortest_tesc_code)) tesc_code2,
max(decode(rn,2,score)) score2,
max(decode(rn,3,sortest_tesc_code)) tesc_code3,
max(decode(rn,3,score)) score3,
max(decode(rn,4,sortest_tesc_code)) tesc_code4,
max(decode(rn,4,score)) score4,
max(decode(rn,5,sortest_tesc_code)) tesc_code5,
max(decode(rn,5,score)) score5,
max(decode(rn,6,sortest_tesc_code)) tesc_code6,
max(decode(rn,6,score)) score6
FROM (select sortest_pidm,
sortest_tesc_code,
score,
row_number() over (partition by sortest_pidm order by score desc) rn
FROM (select sortest_pidm,
sortest_tesc_code,
max(sortest_test_score) score
from sortest,SPRIDEN
where
SPRIDEN_pidm =SORTEST_PIDM
AND sortest_tesc_code in ('A01','BAE','A02','BAM','A05','BAC')
and sortest_pidm is not null
GROUP BY sortest_pidm, sortest_tesc_code))
GROUP BY sortest_pidm;
Hello
That depends on whether spriden_pidm is unique, and you want to get the results.
Whenever you have a problem, post a small example of data (CREATE TABLE and INSERT, relevamnt columns only instructions) for all the tables and the results desired from these data.
If you can illustrate your problem using tables commonly available (such as in the diagrams of scott or HR) so you need not display the sample data; right after the results you want.
Whatever it is, explain how you get these results from these data.
Always tell what version of Oracle you are using.
Looks like you are doing something similar to the following.
Using the tables emp and dept of the scott schema, producing a line of production by Department showing the highest salary for each job, for a set given jobs:
DEPTNO DNAME LOC JOB_1 SAL_1 JOB_2 SAL_2 JOB_3 SAL_3
------ -------------- ------------- ------- ----- ------- ----- ------- -----
20 RESEARCH DALLAS ANALYST 3000 MANAGER 2975 CLERK 1100
10 ACCOUNTING NEW YORK MANAGER 2450 CLERK 1300
30 SALES CHICAGO MANAGER 2850 CLERK 950
On each line, jobs are listed in order by the highest salary.
This seems to be similar to what you are doing. The roles played by the sortest_pidm, sortest_tesc_code and sortest_test_score in your table sortest are played by deptno, job and sal in the emp table. The roles played by the spriden_pidm, id and the name of your table spriden are played by deptno, dname and loc in the dept table.
Looks like you already have something like the query below, which produces a correct output, except that it does not include the dname and loc of the dept table columns.
SELECT deptno
, MAX (DECODE (rn, 1, job)) AS job_1
, MAX (DECODE (rn, 1, max_sal)) AS sal_1
, MAX (DECODE (rn, 2, job)) AS job_2
, MAX (DECODE (rn, 2, max_sal)) AS sal_2
, MAX (DECODE (rn, 3, job)) AS job_3
, MAX (DECODE (rn, 3, max_sal)) AS sal_3
FROM (
SELECT deptno
, job
, max_sal
, ROW_NUMBER () OVER ( PARTITION BY deptno
ORDER BY max_sal DESC
) AS rn
FROM (
SELECT e.deptno
, e.job
, MAX (e.sal) AS max_sal
FROM scott.emp e
, scott.dept d
WHERE e.deptno = d.deptno
AND e.job IN ('ANALYST', 'CLERK', 'MANAGER')
GROUP BY e.deptno
, e.job
)
)
GROUP BY deptno
;
Dept.DeptNo is unique, it won't be a dname and a loc for each deptno, so we can modify the query by replacing "deptno" with "deptno, dname, loc" throughout the query (except in the join condition, of course):
SELECT deptno, dname, loc -- Changed
, MAX (DECODE (rn, 1, job)) AS job_1
, MAX (DECODE (rn, 1, max_sal)) AS sal_1
, MAX (DECODE (rn, 2, job)) AS job_2
, MAX (DECODE (rn, 2, max_sal)) AS sal_2
, MAX (DECODE (rn, 3, job)) AS job_3
, MAX (DECODE (rn, 3, max_sal)) AS sal_3
FROM (
SELECT deptno, dname, loc -- Changed
, job
, max_sal
, ROW_NUMBER () OVER ( PARTITION BY deptno -- , dname, loc -- Changed
ORDER BY max_sal DESC
) AS rn
FROM (
SELECT e.deptno, d.dname, d.loc -- Changed
, e.job
, MAX (e.sal) AS max_sal
FROM scott.emp e
, scott.dept d
WHERE e.deptno = d.deptno
AND e.job IN ('ANALYST', 'CLERK', 'MANAGER')
GROUP BY e.deptno, d.dname, d.loc -- Changed
, e.job
)
)
GROUP BY deptno, dname, loc -- Changed
;
In fact, you can continue to use just deptno in the analytical PARTITION BY clause. It may be slightly more efficient to just use deptno, as I did above, but it won't change the results if you use all 3, if there is only 1 danme and 1 loc by deptno.
Moreover, you don't need so many subqueries. You use the internal subquery to calculate the MAX and the outer subquery to calculate rn. Analytical functions are calculated after global fucntions so you can do both in the same auxiliary request like this:
SELECT deptno, dname, loc
, MAX (DECODE (rn, 1, job)) AS job_1
, MAX (DECODE (rn, 1, max_sal)) AS sal_1
, MAX (DECODE (rn, 2, job)) AS job_2
, MAX (DECODE (rn, 2, max_sal)) AS sal_2
, MAX (DECODE (rn, 3, job)) AS job_3
, MAX (DECODE (rn, 3, max_sal)) AS sal_3
FROM (
SELECT e.deptno, d.dname, d.loc
, e.job
, MAX (e.sal) AS max_sal
, ROW_NUMBER () OVER ( PARTITION BY e.deptno
ORDER BY MAX (sal) DESC
) AS rn
FROM scott.emp e
, scott.dept d
WHERE e.deptno = d.deptno
AND e.job IN ('ANALYST', 'CLERK', 'MANAGER')
GROUP BY e.deptno, d.dname, d.loc
, e.job
)
GROUP BY deptno, dname, loc
;
It will work in Oracle 8.1 or more. In Oracle 11, however, it is better to use the SELECT... Function PIVOT.
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