sqlserver 字符串多行合併爲一行

SELECT S_OS_PO.recId,S_OS_PO.os_PO_Number as 外協單號,S_JOB.partnum as 生產編號,        P_MO.moNumber as 製造單號, CASE WHEN T_SubcontractType.unitId=3 then S_OS_POItem.qty_PNL else S_OS_POItem.qty end as 外協數量  

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