(@Variable)查询中的SQL

我有以下代码,题目是我的变量列表@LocationList本质上是一个csv字符串.当我行使它作为(@LocationList)中LocationID的一部门时,它暗示它不是一个int(LocationID是一个i??nt).怎样让这个csv字符串被teh in子句接管？

Declare @LocationList varchar(1000)
Set @LocationList = '1,32'

select Locations from table where Where LocationID in (@LocationList)

办理要领

可是你可以做一个成果：

ALTER  FUNCTION [dbo].[CSVStringsToTable_fn] ( @array VARCHAR(8000) )
RETURNS @Table TABLE ( value VARCHAR(100) )
AS 
    BEGIN
        DECLARE @separator_position INTEGER,@array_value VARCHAR(8000)  

        SET @array = @array + ','

        WHILE PATINDEX('%,%',@array) <> 0 
            BEGIN
                SELECT  @separator_position = PATINDEX('%,@array)
                SELECT  @array_value = LEFT(@array,@separator_position - 1)

                INSERT  @Table
                VALUES  ( @array_value )

                SELECT  @array = STUFF(@array,1,@separator_position,'')
            END
        RETURN
    END

并从中选择：

DECLARE @LocationList VARCHAR(1000)
SET @LocationList = '1,32'

SELECT  Locations 
FROM    table
WHERE   LocationID IN ( SELECT   *
                           FROM     dbo.CSVStringsToTable_fn(@LocationList) )

要么

SELECT  Locations
FROM    table loc
        INNER JOIN dbo.CSVStringsToTable_fn(@LocationList) list
            ON list.value = loc.LocationID

当您实行从SSRS向PROC发送多值列表时,这很是有效.

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