Question

如果我忽略了一些简单的事情，请原谅我，但是我正在努力解决这个问题。我正在尝试进行计数，当我在SQL中运行以下查询时，我得到的值为21，但是当使用相同的参数运行存储过程时，它会计数20.出了什么问题？

普通查询

(SELECT Count(DISTINCT CONVERT(VARCHAR, f.date_entered, 101)) 
              FROM   de_urine f 
              WHERE  f.location = @Location 
                     AND f.date_entered BETWEEN @StartDate AND @EndDate 
                     AND f.qc_status = 'passed')                  AS 'Passed'

存储过程

USE [POCQC]
GO
/****** Object:  StoredProcedure [dbo].[UrineCompliance]    Script Date: 5/3/2018 3:18:09 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[UrineCompliance] @Location  AS NVARCHAR(50), 
                                        @StartDate AS DATE, 
                                        @EndDate   AS DATE 
AS 
  BEGIN 
      SELECT Count(DISTINCT CONVERT(VARCHAR, f.date_entered, 101)) AS 'Failed', 
             (SELECT Count(DISTINCT CONVERT(VARCHAR, f.date_entered, 101)) 
              FROM   de_urine f 
              WHERE  f.location = @Location 
                     AND f.date_entered BETWEEN @StartDate AND @EndDate 
                     AND f.qc_status = 'passed')                  AS 'Passed' 

      FROM   de_urine f 
      WHERE  f.location = @Location 
             AND f.date_entered BETWEEN @StartDate AND @EndDate 
             AND f.qc_status = 'failed'
             AND NOT EXISTS (SELECT * 
                             FROM   de_urine p 
                             WHERE  p.location = f.location 
                                    AND CONVERT(VARCHAR, p.date_entered, 101) = 
                                        CONVERT(VARCHAR, f.date_entered, 101) 
                                    AND p.qc_status = 'passed')
  END

存储过程返回的计数与同一查询不同

0 个答案: