如何拆分出现两次的字符串？

Question

我有一个表temp,其列名NAME和数据如下:

NAME
-------------
sumansuman
nehaneha
anjalianjali

我想这样输出:

NAME
-------------
suman 
neha
anjali

Answer 1

如果您确定每个名称都完全重复,那么这应该有效

SELECT LEFT(name, LEN(name)/2) FROM temp

要捕获不是这种情况的行:

SELECT name FROM temp
WHERE NOT name = LEFT(name, LEN(name)/2) + LEFT(name, LEN(name)/2)