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我有以下查询,我想把它们放在一个sql CASE语句中,所以我只有一个查询,但我不知道该怎么做。有人能帮助我吗?SQL CASE语句
IF (SELECT EtlLoadId
FROM ssislogs.audit.processcontrol
WHERE SubjectArea = 'UaqaFacetsImp') > 0
SELECT pc.SrcFileName + ' - '+ CONVERT(VARCHAR(10), pc.[RecordCount]) AS FacetsImpCount
FROM ssislogs.audit.processcontrol pc left outer join
Uaqa.LettersAndCardsExports lc
on pc.etlloadid = lc.etlloadid
WHERE pc.subjectarea = 'UaqaFacetsImp'
ELSE
SELECT 'No input file' AS FacetsImpCount
SELECT pc.subjectarea AS FacetsRjctFile
FROM ssislogs.audit.processcontrol pc left outer join
Uaqa.LettersAndCardsExports lc
on pc.etlloadid = lc.etlloadid
WHERE pc.subjectarea = 'UaqaFacetsRjct'
SELECT pc.subjectarea AS FacetsPvsFile
FROM ssislogs.audit.processcontrol pc left outer join
Uaqa.LettersAndCardsExports lc
on pc.etlloadid = lc.etlloadid
WHERE pc.subjectarea = 'UaqaFacetsPvs'
感谢