同义词

同义词相当于alias(别名)

比如在schema2中创建schema1.table的同义词table1

则在schema2中执行select * from table1时，就相当于在执行select * from schema1.table

 

创建同义词语法：

　　create synonym table1 for user1.table1;

 

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转载于:https://www.cnblogs.com/shiliye/p/10727801.html