How the value of the data table B, update Table A

Others 2019-05-31 21:10:45 views: null

If there is table

A： int id

　　int B_id

　　int C_id

B: int id

　int C_id

C_id is a redundant field, you want the data in Table A, B with the same table, Sql statement is as follows:

update Report A set C_id= ( select C_id from B where B.id = A.B_id)

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Origin www.cnblogs.com/everydaygift/p/10955829.html

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