SQL Update實現使用一個表的數據更新另一張表

• 表結構
• 功能
• SQL Serevr
• Access

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表結構

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功能

用表B的數據（mc列）更新表A的mc列

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SQL Server語句

update A SET A.mc = b.mc FROM A ,B WHERE  A.bmbh = B.bmbh and A.xmbh = B.xmbh;

Access語句

update A, B  set A.mc = B.mc where A.bmbh = B.bmbh and A.xmbh = B.xmbh;

或者

update A INNER JOIN B ON A.bmbh = B.bmbh AND A.xmbh = B.xmbh SET A.mc = B.mc;