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DB2 :: RE: SQL query to run through list of values in table

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Author: RahulG31
Subject: Reply to: SQL query to run through list of values in table
Posted: Thu Dec 15, 2016 11:47 am (GMT 5.5)

Since, I like my own query, I would simply modify that as:
Code:
SELECT ID, MIN(CODE)
FROM
(
SELECT
 A.ID as ID,
 CASE B.CODE
    WHEN 'A' THEN 'A'
    WHEN 'B' THEN 'B'
    WHEN 'C' THEN 'C'
    WHEN 'D' THEN 'D'
    ELSE 'X'
 END as CODE,
 CASE B.CODE
    WHEN 'A' THEN '3A'
    WHEN 'B' THEN '2B'
    WHEN 'C' THEN '4C'
    WHEN 'D' THEN '5D'
    ELSE '1X'
 END AS MY_ORDER
FROM TABLE1 A, TABLE2 B
WHERE A.MATCHING_COLUMN = B.MATCHING_COLUMN
ORDER BY 1,3,2
)
GROUP BY ID;


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