ORACLE/SQL - UPDATE 语句问题（需要 OR 一些集合）

Question

我在标题中提出的问题可能吗？我需要在更新中“或”一些集合。

UPDATE prtmst
SET prtfam = '1'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '1M'

运行良好，但我需要它是这样的：

UPDATE prtmst
SET prtfam = '1'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '1M'
 OR SET prtfam = '2'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '2M'
 OR SET prtfam = '3'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '3M'
 OR SET prtfam = '1M'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '1'
 OR SET prtfam = '2M'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '2'
 OR SET prtfam = '3M'
WHERE prtnum IN ('111', '222', '333', '444')
AND prtfam = '3'

Answer 1

请在相信这个答案之前运行一些测试。它应该工作，但由于我不知道你的架构，可能会发生不好的事情。

UPDATE prtmst
SET prtfam =
CASE
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')   
        AND prtfam = 'FERRERO1M' 
        THEN  'FERRERO1'
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
        AND prtfam = 'FERRERO2M'
        THEN 'FERRERO2'
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
        AND prtfam = 'FERRERO3M'
        THEN 'FERRERO3'
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
        AND prtfam = 'FERRERO1'
        THEN 'FERRERO1M'
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
        AND prtfam = 'FERRERO2'
        THEN 'FERRERO2M'
    WHEN prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
        AND prtfam = 'FERRERO3'
        THEN  'FERRERO3M'
END
WHERE prtnum IN ('XBR140006T', 'XCA02334', 'XCA02344')
  AND prtfam IN ('FERRERO1M','FERRERO2M','FERRERO3M','FERRERO1','FERRERO2','FERRERO3')

伙计，那个费列罗人正在给你下地狱。

编辑：添加了 WHERE 子句以避免尝试更新不包含在 CASE ... WHEN 块中的行。