sql - 使用来自不同数据库的不同表删除记录

Question

这是我使用的代码：

DELETE FROM db1.table1 
WHERE db1.table1.Timestamp = db2.table2.Timestamp;

根本无法准备陈述。这让我疯狂！

Answer 1

Try this

DELETE from db1.table1 WHERE 
db1.table1.Timestamp IN( SELECT Timestamp FROM db2.table2) ;

It will delete all matching records from db1.table1 with db2.table2