SQL中的行合并

Question

如何在单行中合并重复记录。

Answer 1

您需要聚合：

select id, max(lname) as lname, max(fname) as fname, max(address) as address,
       max(zip) as zip, max(city) as city, max(state) as state, max(phone)
from table t
group by id;

Answer 2

您可以使用聚合：

select id, max(lname) as lname, max(fname) as fname, max(address) as address,
       . . . 
from t
group by id;