📜  一个表中有多条记录,有些是重复的.哪个命令将只获取重复记录的一份副本?选择一个选项 SELECT DISTINCT SELECT UNIQUE SELECT DIFFERENT 以上所有 - 无论代码示例

📅  最后修改于: 2022-03-11 14:56:51.658000             🧑  作者: Mango

代码示例1
There are multiple records in a table and some are duplicates. Which command will fetch only one copy of the duplicate records?
Pick ONE option
SELECT DISTINCT
SELECT UNIQUE
SELECT DIFFERENT
All of the above