Question

这是我上一个问题的延续 sql update for dynamic row number

这次我有更新的要求。我有两张桌子 CraftTypes ＆amp;的 EmployeeCraftTypes

我需要更新 CraftType 表中的多行我能够根据TheGameiswar

提供的答案更新它

现在需求有一个修改。

在 CraftTypes 表格中， CraftTypeKey 列有一个外键引用，表格为 EmployeeCraftsTypes

如果 EmployeeCrafttypes 表中存在 CraftTypeKey 的条目，则不应更新该行。此外，必须获取其行值未更新的 CraftTypeKey ，以便返回行的FK_restriction状态。

这是我正在使用的SQL查询。

            CREATE TYPE [DBO].[DEPARTMENTTABLETYPE] AS TABLE
         ( DepartmentTypeKey SMALLINT, DepartmentTypeName VARCHAR(50),DepartmentTypeCode VARCHAR(10) , DepartmentTypeDescription VARCHAR(128) )  

ALTER PROCEDURE [dbo].[usp_UpdateDepartmentType]

@DEPARTMENTDETAILS [DBO].[DEPARTMENTTABLETYPE] READONLY

AS
BEGIN
SET NOCOUNT ON;

DECLARE @rowcount1 INT
    BEGIN

        BEGIN TRY
    BEGIN TRANSACTION

        UPDATE  D1
        SET
            D1.[DepartmentTypeName]=D2.DepartmentTypeName
           ,D1.[DepartmentTypeCode]=D2.DepartmentTypeCode
           ,D1.[DepartmentTypeDescription]=D2.DepartmentTypeDescription

        FROM 
             [dbo].[DepartmentTypes] D1
        INNER JOIN 
            @DEPARTMENTDETAILS D2
        ON 
            D1.DepartmentTypeKey=D2.DepartmentTypeKey

        WHERE
            D2.[DepartmentTypeKey] not in (select 1 from [dbo].[EmployeeDepartment] where [DepartmentTypeKey]=D2.DepartmentTypeKey)

        SET @ROWCOUNT1=@@ROWCOUNT
        COMMIT
END TRY
    BEGIN CATCH
        SET @ROWCOUNT1=0
        ROLLBACK TRAN
    END CATCH

    IF @rowcount1 =0
        SELECT  -174;
    ELSE
        SELECT  100;

    END 
    END

请帮助并提前致谢

Answer 1

确定

我想我这次想办法了。我不确定这是正确的方法，但它足以让我满足要求。

我选择了来自 EmployeeCraftsTypes 表的FK引用的不同行作为第二个选择查询。

现在我可以获得由于FK约束而未更新的Row值。

这是我用过的SQL查询

ALTER PROCEDURE [dbo].[usp_UpdateCraftType]

@CRAFTDETAILS [DBO].[CRAFTTABLETYPE] READONLY

AS
BEGIN

SET NOCOUNT ON;

DECLARE @STATUSKEY TINYINT = (SELECT DBO.GETSTATUSKEY('ACTIVE'))
DECLARE @ROWCOUNT1 INT

    BEGIN


BEGIN TRY
    BEGIN TRANSACTION

        UPDATE  C1
        SET
              [C1].[CraftTypeName]=C2.CRAFTTYPENAME
              ,[C1].[CRAFTTYPEDESCRIPTION]=C2.CRAFTTYPEDESCRIPTION
              ,[C1].[StatusKey]=C2.[StatusKey]
        FROM 
            [dbo].[CRAFTTYPES] C1
        INNER JOIN 
            @CRAFTDETAILS C2
        ON 
            C1.CRAFTTYPEKEY=C2.CRAFTTYPEKEY
        WHERE
            C2.[CRAFTTYPEKEY] NOT IN (SELECT EC.[CRAFTTYPEKEY]  from [dbo].[EmployeeCrafts] EC where EC.[CRAFTTYPEKEY]=C2.[CRAFTTYPEKEY]) 

        SET @ROWCOUNT1=@@ROWCOUNT
        COMMIT
END TRY
    BEGIN CATCH
        SET @ROWCOUNT1=0
        ROLLBACK TRAN
    END CATCH

        --SET @ROWCOUNT1 = @@ROWCOUNT

    IF @ROWCOUNT1 =0
        SELECT  -172;
    ELSE
    BEGIN
        SELECT  100;

        SELECT DISTINCT EC.[CRAFTTYPEKEY],'Value Already Assigned' as Reason
        FROM [DBO].[EmployeeCrafts] EC
        JOIN @CRAFTDETAILS C3
        on C3.[CRAFTTYPEKEY]=EC.[CRAFTTYPEKEY]
         WHERE EC.[CRAFTTYPEKEY]=C3.[CRAFTTYPEKEY]


    END
    END 
END

现在在Web API方面，我可以通过检查第二个表的rowcount来检查是否有任何更新失败。如果行计数大于0，则可以生成更新错误消息

希望它会对某人有所帮助....

获取在多行更新期间值未更新的行的键值

1 个答案: