我在WHERE
中的SELECT
语句中创建了一个动态Stored Procedure
子句SQL SERVER 2008-R2.
它已成功创建,但输出为0.任何想法我在哪里错?
这是我的SP:
CREATE PROCEDURE [dbo].[SPData]
@Id int = NULL,
@Requester varchar(20) = NULL,
@Suggester varchar(20) = NULL
AS
BEGIN
DECLARE @sql nvarchar(4000)
SELECT @sql=' [Id], [Suggester], [Requester] from CRM.dbo.Request_Table WHERE 1=1 '
If (@Id) IS NOT NULL
SELECT @sql=@sql + ' AND Id=(@Id) '
If (@Suggester) IS NOT NULL
SELECT @sql=@sql + ' AND Suggester like (@Suggester) '
If (@Requester) IS NOT NULL
SELECT @sql=@sql + ' AND Requester like (@Requester) '
END
GO
答案 0 :(得分:2)
我错的任何想法?
构建动态SQL后,还必须使用sp_executesql执行它。
我相信这会让你感兴趣。 Dynamic Search Conditions in T-SQL
ALTER PROCEDURE [dbo].[SPData]
@Id int = NULL,
@Requester varchar(20) = NULL,
@Suggester varchar(20) = NULL
AS
BEGIN
DECLARE @sql nvarchar(4000)
SELECT @sql='SELECT [Id], [Suggester], [Requester] from CRM.dbo.Request_Table WHERE 1=1 '
If (@Id) IS NOT NULL
SELECT @sql=@sql + ' AND Id=(@Id) '
If (@Suggester) IS NOT NULL
SELECT @sql=@sql + ' AND Suggester like (@Suggester) '
If (@Requester) IS NOT NULL
SELECT @sql=@sql + ' AND Requester like (@Requester) '
EXEC sp_executesql @sql,
N'@id int, @Requester varchar(20), @Suggester varchar(20)',
@Id, @Requester, @Suggester
END