SQL Server 取前一天的0点和23点59分59秒

 DECLARE @startDate1 DATE;
 DECLARE @startDate DATETIME;
 SET @startDate1=GETDATE();SELECT @startDate=DATEADD(DAY,-1,@startDate1);
 DECLARE @endDate DATETIME ;SET @endDate=DATEADD(second,-1,CONVERT(DATETIME,@startDate1));
 SELECT @startDate startDate,@endDate endDate;
 
 startDate               endDate
 ----------------------- -----------------------
 2014-05-19 00:00:00.000 2014-05-19 23:59:59.000