更新时间:2023-01-31 14:01:48
尝试这个
SELECT id ,FruitsAvailable
FROM
(SELECT id , group_concat(Name) as FruitsAvailable
FROM TableFoo
WHERE id = 1) t
编辑:
在db2中,您需要创建函数,然后调用它
in db2 you need to create function and then call it
CREATE FUNCTION MySchema/MyUDF (
PARCol2 CHAR(5) )
RETURNS VARCHAR(1024)
LANGUAGE SQL
NOT DETERMINISTIC
READS SQL DATA
CALLED ON NULL INPUT
DISALLOW PARALLEL
BEGIN
DECLARE ReturnVal VARCHAR(1024) NOT NULL DEFAULT '';
FOR CsrC1 AS C1 CURSOR
FOR SELECT MyCol1
FROM MyTable
WHERE MyCol2 = ParCol2
DO SET ReturnVal = ReturnVal Concat CsrC1.MyCol1;
END FOR;
RETURN LTRIM(ReturnVal);
END ;
然后在这里调用
Select id, MyUDF(Name) as FruitsAvailable
From TableFoo
where id = 1