我想在SQL Server中创建一个表值函数,我希望以逗号分隔值返回数据。
例如表:tbl
ID | Value
---+-------
1 | 100
1 | 200
1 | 300
1 | 400
现在,当我使用函数Func1(value)
SELECT Func1(Value)
FROM tbl
WHERE ID = 1
我想要的输出是:100,200,300,400
答案 0 :(得分:192)
测试数据
DECLARE @Table1 TABLE(ID INT, Value INT)
INSERT INTO @Table1 VALUES (1,100),(1,200),(1,300),(1,400)
<强>查询强>
SELECT ID
,STUFF((SELECT ', ' + CAST(Value AS VARCHAR(10)) [text()]
FROM @Table1
WHERE ID = t.ID
FOR XML PATH(''), TYPE)
.value('.','NVARCHAR(MAX)'),1,2,' ') List_Output
FROM @Table1 t
GROUP BY ID
结果集
╔════╦═════════════════════╗
║ ID ║ List_Output ║
╠════╬═════════════════════╣
║ 1 ║ 100, 200, 300, 400 ║
╚════╩═════════════════════╝