工作中编写存储过程小记

   实际场景：根据条件去搜索所有的匹配数据，“全部”选项代表是所有符合的，该选项对应的值没有保存在数据库中

 

-- 删除存储过程
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[SpGs_ChestTask_SearchList]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)

drop procedure [dbo].SpGs_ChestTask_SearchList
GO

--创建存储过程
create procedure SpGs_ChestTask_SearchList
(
   @out_RecordCount        INT OUTPUT        --数量总条数
    , @in_CurrentPage        INT    = 1            --第几页  
    , @in_PageSize            INT    = 10        --每页数量
    , @in_ChestType         INT = 0         --0:全部，1登录宝箱，2会员宝箱
    , @in_ChestName         VARCHAR(50)=''  --宝箱名称
    , @in_ReceiveType       INT = 0         --0:全部，1按倒计时领取，2按固定时间段领取,3签到领取,4按日期段领取,5月宝箱,6节日发奖
    , @in_SendStatus        INT = 0         --2：全部，0:未发布，1发布
    , @in_BeginDate         datetime=''     --开始时间
    , @in_EndDate           datetime=''     --结束时间
    , @in_CreateDate        datetime=''     --创建时间
)
AS
  BEGIN
    --总页数
    DECLARE @PCount        INT    
    --数据总条数
    --开始时间等于开始时间，结束时间等于结束时间
    SELECT @out_RecordCount=COUNT(c.pkid) 
        FROM dbo.ChestTask c JOIN ReceiveType r ON r.pkid=c.ReceiveType
        WHERE (@in_ChestType=0 OR c.ChestType=@in_ChestType)
        AND c.ChestName LIKE '%'+@in_ChestName+'%' 
        AND (@in_ReceiveType=0 OR c.ReceiveType=@in_ReceiveType)
        AND (@in_SendStatus=2 OR c.ChestStatus=@in_SendStatus)
        AND (@in_BeginDate='' OR DATEDIFF(day,@in_BeginDate,c.beginDate)=0)
        AND (@in_EndDate='' OR DATEDIFF(day,@in_EndDate,c.endDate)=0)
        AND (@in_CreateDate='' OR DATEDIFF(day,@in_CreateDate,c.CreateDate)=0)
        
      
    --当没有记录数据时，返回结构
    IF @out_RecordCount = 0
    BEGIN
        SELECT c.pkid,c.ChestName,c.ChestType,c.ReceiveType,c.ChestStatus,c.beginDate,c.endDate,c.CreateDate,r.TypeName
        FROM YHGameCenter.dbo.ChestTask c JOIN ReceiveType r ON r.pkid=c.ReceiveType
        WHERE 1=2
    END    
    
    --总页数
    SET @PCount=CEILING(@out_RecordCount/CONVERT(FLOAT,@in_PageSize))
    IF(@in_CurrentPage<1)
        SET @in_CurrentPage=1
    IF(@in_CurrentPage>@PCount)
        SET @in_CurrentPage=@PCount
        
    --获取符合条件的数据集
    SELECT t.pkid,t.ChestName,t.ChestType,t.ReceiveType,t.ChestStatus,t.beginDate,t.endDate,t.CreateDate,t.TypeName
        FROM (
            SELECT ROW_NUMBER() OVER(ORDER BY c.pkid  DESC) as RowNum, c.pkid,c.ChestName,c.ChestType,c.ReceiveType,c.ChestStatus,c.beginDate,c.endDate,c.CreateDate,r.TypeName
            FROM dbo.ChestTask c JOIN ReceiveType r ON r.pkid=c.ReceiveType
                WHERE (@in_ChestType=0 OR c.ChestType=@in_ChestType)
                  AND c.ChestName LIKE '%'+@in_ChestName+'%' 
                  AND (@in_ReceiveType=0 OR c.ReceiveType=@in_ReceiveType)
                  AND (@in_SendStatus=2 OR c.ChestStatus=@in_SendStatus)
                  --开始时间，结束时间相等
                  AND (@in_BeginDate='' OR DATEDIFF(day,@in_BeginDate,c.beginDate)=0)
                  AND (@in_EndDate='' OR DATEDIFF(day,@in_EndDate,c.endDate)=0)
                  AND (@in_CreateDate='' OR DATEDIFF(day,@in_CreateDate,c.CreateDate)=0)
              ) t
        WHERE (RowNum BETWEEN (@in_CurrentPage -1) * @in_PageSize + 1 AND @in_CurrentPage * @in_PageSize)
        ORDER BY t.CreateDate DESC
  END
GO

 重点解释部分：

    (@in_ChestType=0 OR c.ChestType=@in_ChestType)：0是表示全部，该条件就是说选择了全部，就匹配第一个条件，选择了其他匹配c.ChestType=@in_ChestType这个条件

    DATEDIFF(day,@in_BeginDate,c.beginDate)=0 ：表示是同一天