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  • 存储过程拼接sql

    拼接 SQL的时候有单引号的话, 需要再用单引号进行转义  


    ROCEDURE
    [dbo].[P_XXXX] (
    --参数
    @RegionCode varchar(10), --区域 @StartDate varchar(50), --开始时间 @EndDate varchar(50) --结束时间 ) AS BEGIN SET NOCOUNT ON;
    --声明变量
    declare @code nvarchar(20) declare @sql nvarchar(4000) declare @QueryTimeSql nvarchar(1000) declare @QueryEndTimeSql nvarchar(1000) SET @code= CASE WHEN @RegionCode ='BJ' THEN 'SCqMgr' WHEN @RegionCode ='TG' THEN 'CTC' WHEN @RegionCode ='TP' THEN 'CBP' ELSE '' END --根据入参给变量赋值 IF((@StartDate IS NULL OR @StartDate='') OR (@EndDate IS NULL OR @EndDate='')) -- 入参为空,则条件sql为空 BEGIN SET @QueryTimeSql='' SET @QueryEndTimeSql='' END ELSE BEGIN
    --入参不为空, 则编辑条件sql
    SET @QueryTimeSql=N' WHERE (SELECT MAX(OperDate) OperDate FROM dbo.FlowLog'+@RegionCode+' AS fl WHERE fl.WorkSheetId=log.WorkSheetId AND ProcedureCode=''Close'')>='''+@StartDate+''' AND (SELECT MAX(OperDate) OperDate FROM dbo.FlowLog'+@RegionCode+' AS fl WHERE fl.WorkSheetId=log.WorkSheetId AND ProcedureCode=''Close'')<='''+@EndDate+''' ' SET @QueryEndTimeSql=N' WHERE FL.EndDate>='''+@StartDate+''' AND FL.EndDate<='''+@EndDate+''' ' END

    --sql 主体部分 SET @sql=N' WITH FlowLog'+@RegionCode+' AS ( SELECT WorkSheetId ,StartDate = (SELECT MIN(OperDate) OperDate FROM dbo.FlowLog'+@RegionCode+' AS fl WHERE fl.WorkSheetId=log.WorkSheetId AND ProcedureCode='''+@code+''') ,EndDate=(SELECT MAX(OperDate) OperDate FROM dbo.FlowLog'+@RegionCode+' AS fl WHERE fl.WorkSheetId=log.WorkSheetId AND ProcedureCode=''Close'') FROM dbo.FlowLog'+@RegionCode+' AS log '+@QueryTimeSql+' GROUP BY log.WorkSheetId ) ,R1 AS ( SELECT COUNT(WS.WorkSheetId) AS TotalCount ,[dbo].[F_ConvertToDay](SUM( CAST( CASE WHEN FL.StartDate IS NULL OR FL.EndDate IS NULL THEN 0 ELSE DATEDIFF(SS,FL.StartDate,FL.EndDate ) END AS decimal(10)))) AS SumTime ,[dbo].[F_ConvertToDay](SUM( CAST( CASE WHEN FL.StartDate IS NULL OR FL.EndDate IS NULL THEN 0 ELSE DATEDIFF(SS,FL.StartDate,FL.EndDate ) END AS decimal(10)))/COUNT(WS.WorkSheetId)) AS SingleTime FROM dbo.WorkSheet'+@RegionCode+' AS WS LEFT OUTER JOIN FlowLog'+@RegionCode+' AS FL ON WS.Id=FL.WorkSheetId '+@QueryEndTimeSql+' ) SELECT * FROM R1 ' execute sp_executesql @sql Output --输出查询结果 END GO
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  • 原文地址:https://www.cnblogs.com/LinWenQiang/p/15791349.html
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