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TableA 具有所有者和表空间名称。表 B 有 id、name 和 address。
我想从表 B 中选择 * tableA.owner = "CSCI";
但它无法检索表 B 的详细信息。
不记得正确的语法 - 请帮忙!
尝试这个
select * from country where UserName in(select UserName from Usertable where UserName='personA')