sql 根據多個ID刪除表中多行數據

以下為刪除記錄的存儲過程，此刪除為邏輯刪除，只是將記錄的狀態字段state改為'2'了，正常為'1'

/*
*****************************************************************************
*根據ID刪除黑名單表中記錄信息
*****************************************************************************
*/
CREATE PROCEDURE [dbo].[P_DelBlackListByID_sp]
@IDList nvarchar(2000)
AS
   DECLARE @Len int
   DECLARE @id varchar(30)
   SELECT @Len = DATALENGTH(@idList)
   WHILE @Len> 0 
   BEGIN
   EXECUTE @Len = GetFirstWordWithSeparator_sp @idList OUTPUT, @id OUTPUT,','
   IF @Len > 0 
     BEGIN
     update BlackList_tb set [state]='2' WHERE BlackListID=cast(@id as int)
     END
   End

以上存儲過程調用了下面的存儲過程

CREATE PROCEDURE [dbo].[GetFirstWordWithSeparator_sp]
@SourceString nvarchar(4000) = NULL OUTPUT,
@FirstWord nvarchar(4000) = NULL OUTPUT,
@Separator nvarchar(20)
AS
   SET NOCOUNT ON
   DECLARE @Oldword nvarchar(4000)
   DECLARE @Length int
   DECLARE @CommaLocation int
   SELECT @Oldword = @SourceString
   IF NOT @Oldword IS NULL
   BEGIN
     SELECT @CommaLocation = CHARINDEX(@Separator,@Oldword)
     SELECT @Length = DATALENGTH(@Oldword)
     IF @CommaLocation = 0
     BEGIN
        SELECT @FirstWord = @Oldword
        SELECT @SourceString = NULL
        RETURN @Length
        END
        SELECT @FirstWord = SUBSTRING(@Oldword, 1, @CommaLocation -1)
        SELECT @SourceString = SUBSTRING(@Oldword, @CommaLocation + LEN(@Separator), @Length - @CommaLocation)
        RETURN @Length - @CommaLocation
     END
     RETURN 0

這樣就可以一次性向數據庫傳遞一個字符串id集合對數據進行操作了，這樣做可以不用in關鍵字。
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