SQL查询串联未执行

Question

USE [Test] Go
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[SP_ViewAdvanceSearchDetails]
( 
 @JobStatus nvarchar(20)
)
AS BEGIN

DECLARE @SelectQuery nvarchar(max)
DECLARE @JobSeekerStatus nvarchar(20)

SET @SelectQuery= N'SELECT Tbl_JobSeekers.National_Id, Tbl_JobSeekers.JobSeeker_EnglishName, Tbl_JobSeekers.JobSeeker_Arabicname, Tbl_JobSeekers.Mobile, Tbl_JobSeekers.City, 
                  Tbl_JobSeekers.Nationality, Tbl_JobSeekers.Education, Tbl_JobSeekers.Experience, Tbl_JobSeekers.Category, Tbl_JobSeekers.JobSeekerStatus, 
                  Tbl_JobSeekers.StatusEmployer, Tbl_JobSeekers.ImagePath, Tbl_JobSeekers.ResumePath, Tbl_JobSeekers.Remarks, Tbl_JobSeekers.Created_By, 
                  Tbl_JobSeekers.Created_Date
                  FROM Tbl_JobSeekers INNER JOIN
                  Tbl_City ON Tbl_JobSeekers.City = Tbl_City.City_Name INNER JOIN
                  Tbl_Qualification ON Tbl_JobSeekers.Education = Tbl_Qualification.Education_Name INNER JOIN
                  Tbl_Categories ON Tbl_JobSeekers.Category = Tbl_Categories.Category_Name INNER JOIN
                  Tbl_Experience ON Tbl_JobSeekers.Experience = Tbl_Experience.Experience_Years'

SET @JobSeekerStatus=@JobStatus

IF (@JobSeekerStatus='Selected')
    BEGIN
        SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus=' + @JobSeekerStatus + ' ORDER BY Tbl_JobSeekers.National_Id DESC'
    END
ELSE IF (@JobSeekerStatus='Working')
    BEGIN
        SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus=' + @JobSeekerStatus + ' ORDER BY Tbl_JobSeekers.National_Id DESC'
    END
ELSE IF (@JobSeekerStatus='Looking')
    BEGIN
        SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus=' + @JobSeekerStatus + ' ORDER BY Tbl_JobSeekers.National_Id DESC'
    END
ELSE IF (@JobSeekerStatus='All')
    BEGIN
        SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus=' + @JobSeekerStatus + ' ORDER BY Tbl_JobSeekers.National_Id DESC'
    END
ELSE 
    BEGIN
        SET @SelectQuery= @SelectQuery + ' ORDER BY Tbl_JobSeekers.National_Id DESC'
    END

PRINT @SelectQuery

EXEC sp_executesql @SelectQuery, N'@JobSeekerStatus nvarchar(20)', @JobSeekerStatus

END 

大家好，根据您的建议，我从Exec改正为EXEC sp_executesql，并将参数作为值传递，查询仍未执行，显示错误消息“ Invalid Column'Selected'”（我应该将其作为参数值传递）。 无论我传递的值是什么，它都会与该参数一起显示无效的列。

Answer 1

您需要将@JobSeekerStatus用3个引号引起来

更新为使用QUOTENAME（感谢ughai）

例如

SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus=' + QUOTENAME(@JobSeekerStatus, '''') + ' ORDER BY Tbl_JobSeekers.National_Id DESC'

Answer 2

感谢您的所有建议，它的工作正常。

我的修改代码：

  SET @SelectQuery= @SelectQuery + ' WHERE Tbl_JobSeekers.JobSeekerStatus='''+ @JobSeekerStatus +''' ORDER BY Tbl_JobSeekers.National_Id DESC'

  EXEC sp_executesql @SelectQuery, N'@JobSeekerStatus nvarchar(20)',@JobSeekerStatus

Answer 3

请参见SQL Books Online中的sp_executesql存储过程。