sql-distinct

DISTINCT

  找出表格内的不同资料的值

语法

SELECT DISTINCT "栏位名" 
FROM "表格名";

例如:要在以下的表格,Store_Information,找出所有不同的店名时,

SELECT DISTINCT Store_Name FROM Store_Information;

结果:

Store_Name
Los Angeles
San Diego
Boston
原文地址:https://www.cnblogs.com/hwaggLee/p/4498625.html