php sql语句去掉重复 sql 去除重复记录的语句

IF OBJECT_ID('[tb]') IS NOT NULL

DROP TABLE [tb]

GO

CREATE TABLE [tb] ([name] [nvarchar](10),[value] [int])

INSERT INTO [tb]

SELECT 'aaa','1' UNION ALL

SELECT 'bbb','2' UNION ALL

SELECT 'ccc','3' UNION ALL

SELECT 'ccc','4' UNION ALL

SELECT 'ccc','5'

-->SQL查询如下:

SELECT name = CASE [value]

WHEN (

SELECT MIN([value])

FROM tb

WHERE name = t.name

) THEN name

ELSE ''

END, [value]

FROM [tb] t

/*

name value

---------- -----------

aaa 1

bbb 2

ccc 3

4

5