0

这有效：

SELECT DISTINCT HEX(group_uuid) AS hexid 
FROM schema.table

>9B3D8DE01E1E049DA9F17D42B324AA66
>CDF112D740CE14EA08CA90E3C937DE8D

就像这个

SELECT  GROUP_CONCAT('\'', HEX(group_uuid), '\' ') AS hexid 
FROM schema.table

>'9B3D8DE01E1E049DA9F17D42B324AA66','9B3D8DE01E1E049DA9F17D42B324AA66' [etc...]

还有这个

SELECT  GROUP_CONCAT(DISTINCT HEX(group_uuid) SEPARATOR '\' ') AS hexid 
FROM schema.table

>9B3D8DE01E1E049DA9F17D42B324AA66' CDF112D740CE14EA08CA90E3C937DE8D

然而，这

SELECT  GROUP_CONCAT('\'', DISTINCT HEX(group_uuid), '\' ') AS hexid 
FROM schema.table 

Error Code: 1064. You have an error in your SQL syntax; INSERT COIN

才不是。

是否有某种可以替换的“前缀”关键字或我应该遵循的另一种语法？

4

1 回答 1

4

你在寻找

 GROUP_CONCAT(DISTINCT CONCAT('\'',HEX(group_uuid),'\'') SEPARATOR ' ')
于 2012-07-21T12:30:46.887 回答