--基于任何分隔符解析数组的函数
CREATE FUNCTION valuedfunction
(
@string VARCHAR(MAX),
@delimiter CHAR(1)
)
RETURNS @output TABLE(
data VARCHAR(256)
)
BEGIN
DECLARE @start INT, @end INT
SELECT @start = 1, @end = CHARINDEX(@delimiter, @string)
WHILE @start < LEN(@string) + 1 BEGIN
IF @end = 0
SET @end = LEN(@string) + 1
INSERT INTO @output (data)
VALUES(SUBSTRING(@string, @start, @end - @start))
SET @start = @end + 1
SET @end = CHARINDEX(@delimiter, @string, @start)
END
RETURN
END
-- 支持以逗号分隔的员工 ID 值列表的存储过程。我使用函数 ---(valuedfunction) 来获取员工数据。
CREATE PROCEDURE commaseparated
@keyList varchar(40)
AS
SELECT Title, Birthdate
FROM HumanResources.Employee WITH (NOLOCK)
WHERE EmployeeID IN (dbo.valuedfunction(@keyList))
--这是问题所在:我收到以下错误:我错过了什么
exec commaseparated '10,11,12,13';
--ERROR MESSAGE: Msg 4121, Level 16, State 1, Procedure commaseparated, Line 4 找不到列“dbo”或用户定义的函数或聚合“dbo.valuedfunction”,或者名称不明确。