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There are two tables in Oracle, a and B. these two tables need to be associated with the third table C. how to update the field MJ1 in table a to the value MJ2 in table B

2022-07-24 07:21:00 【CSDN Q & A】

oracle There is A,B Connect a table , These two tables need a third table C relation , Then how can A Fields in the table MJ1 Updated to B In the table MJ2 Value .
Connections ：
B.TSTYM=C.TSTYM
A.BH=C.BH

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