如何用一个select语句提取多个ID？

Question

假设表格有ID（1,2,3,4,5）。我想用一个选择语句来提取1,4,5。我该怎么做？

Select m.Member_ID,m.Member_Name,r.Title from Member m,Record r 
where m.Member_ID=r.Member_ID 
and m.Member_ID=79 

我想退出，而不是只有79

Answer 1

最简单的办法多个ID是使用IN()

Select m.Member_ID,m.Member_Name,r.Title from Member m,Record r 
where m.Member_ID=r.Member_ID 
and m.Member_ID IN(1,4,5) 

虽然你可以单独的WHERE子句中，然后名单。只要确保将它们包裹在圆括号中以确保适当的操作员优先权。

Select m.Member_ID,m.Member_Name,r.Title from Member m,Record r 
where m.Member_ID=r.Member_ID 
and (m.Member_ID=1 OR m.Member_ID=4 OR m.Member_ID=5) 

Answer 2

您应该使用in声明。但是，你应该学会正确的，明确的join语法：

Select m.Member_ID, m.Member_Name, r.Title 
from Member m join 
    Record r 
    on m.Member_ID = r.Member_ID 
where m.Member_ID in (1, 4, 5);