存储过程处理前端选择多值集合

在存储过程中，有时需要处理前端传入的如数组集合，方法可以参考下面实例：

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO



CREATE PROCEDURE [dbo].[usp_FqaVisual_GetWorkPlaceReport]
(    
    @WorkPlaceCollections NVARCHAR(50) --用户选择的场所集合,如："2,5,6,7"
)
AS

BEGIN
--判断临时表是否存在
    IF OBJECT_ID('#TempWorkPlace') IS NOT NULL
    --如果存在，首先DROP
        DROP TABLE #TempWorkPlace    
        --创建临时表
    CREATE TABLE  #TempWorkPlace 
     (   
        ID INT IDENTITY(1,1),  --动处产生ID
        WorkPlaceId TINYINT
     )        
END

--宣告变量
DECLARE @N INT,    @ROWS INT,@WorkPlaceId TINYINT
--判断临时表是否有记录存在
IF EXISTS (SELECT * FROM #TempWorkPlace)
--如果有记录存在，首先TRUNCATE所有记录
TRUNCATE TABLE #TempWorkPlace        


SELECT @N = 1            
    DECLARE @sql NVARCHAR(500)
    --把用户选择的场所集合插入到临时表中。
    SET @sql ='INSERT INTO #TempWorkPlace([WorkPlaceId]) SELECT '''+ REPLACE(@WorkPlaceCollections,',',''' UNION SELECT''') +''''
    EXECUTE(@sql)
SELECT @ROWS = @@ROWCOUNT

--下面开始循环临时表
WHILE @N <= @ROWS 
BEGIN
    SELECT @WorkPlaceId = [WorkPlaceId] FROM #TempWorkPlace WHERE [Id] = @N
    --这里开始处理与工作场所相关报表
    
    SET @N = @N + 1                
END