当我做减法时,在我的查询中出现错误。我正在使用MS SQL。我该如何在这个查询中做一个减号?
SELECT PT.PcbId
FROM dbo.DeviceTrace DT
JOIN dbo.PcbTrace PT ON DT.CompId = '101125937'
AND DT.DeviceID = PT.DeviceID
NOT IN (SELECT PB.PcbId
FROM dbo.DeviceTrace DT
JOIN dbo.PcbTrace PT ON DT.CompId = '101125937'
AND DT.DeviceID = PT.DeviceID
JOIN dbo.PanelBlockTrace PB ON PB.PcbID = PT.PcbID)
请问您能纠正我吗?
你有什么问题? – 2011-04-26 05:18:22