存储过程示例-临时表代替游标

  
    /*
    手机动作统计
*/
CREATE PROC usp_ActionCount
@planid int,
@updatetype varchar(50)
AS 
--------------------------------------------------------------------
CREATE TABLE #tempA (
    id int IDENTITY(1,1) NOT NULL ,
    mobile varchar(20) NOT NULL ,
    updatetype varchar(50)
)
CREATE TABLE #tempB(
    id int IDENTITY(1,1) NOT NULL,
    mobile varchar(20) NOT NULL ,
    updatetype varchar(20)     
)
INSERT INTO #tempA (mobile,updatetype) SELECT DISTINCT msisdn,'' FROM tb_PlanMsisdn WHERE plan_id=@planid
DECLARE @id int,@mobile varchar(20)
SELECT @id=COUNT(1) FROM #tempA ta
WHILE @id>0
    BEGIN
        SELECT @mobile=mobile FROM #tempA ta WHERE ta.id=@id
        TRUNCATE TABLE #tempB
        INSERT INTO #tempB(mobile,updatetype) SELECT DISTINCT msisdn,updatetype FROM tb_PlanMsisdn tpm WHERE tpm.msisdn=@mobile AND tpm.plan_id=@planid
        DECLARE @innerid int,@utype varchar(20),@innermobile varchar(20)
        SELECT @innerid=COUNT(1) FROM #tempB tb
        WHILE @innerid>0
            BEGIN
                SELECT @utype=updatetype,@innermobile=tb.mobile    FROM #tempB tb WHERE tb.id=@innerid
                IF charindex(@utype,@updatetype)>0
                    BEGIN
                        UPDATE #tempA SET updatetype =updatetype + CASE @utype
                        WHEN '1' THEN '周期更新 '    
                        WHEN '2' THEN '关机 '    
                        WHEN '3' THEN '开机 '    
                        WHEN '4' THEN '进入小区 '    
                        WHEN '5' THEN '寻呼响应 '    
                        WHEN '6' THEN '发短信 '    
                        WHEN '7' THEN '主叫 '    
                        WHEN '8' THEN '短信接收 '    
                        ELSE ''
                        END WHERE mobile=@innermobile    
                        
                    END                                    
                SET @innerid=@innerid-1
            END            
        SET @id=@id-1
    END
SELECT * FROM #tempA ta
DROP TABLE #tempB    
DROP TABLE #tempA
GO