如何修复引用表变量时，“必须声明标量变量”的错误？(How to fix “Must declare

我想不通为什么（也许你不能做到这一点），我得到了范围错误

必须声明标量变量“@CompanyGroupSites_Master。

因此，它是我不能访问我的表变量我的光标里面这样，否则我一定错过了简单的东西从游标身体内引用时就是维持该表变量超出范围？

DECLARE @TotalCompaniesToProcess int 
SET @TotalCompaniesToProcess = (select distinct Count(BusinessLine) from vwBuisinessUnit)

IF(@TotalCompaniesToProcess > 0)
BEGIN

    ---------------- ############# SETUP ############# ----------------

    DECLARE @Companies TABLE (Company varchar(30))        
    Insert Into @Companies select distinct Company from Companies

    DECLARE @CompanyGroups_Added TABLE(
                                        CompanyGroupDesc varchar(50),
                                        size varchar(50)
                                      )

    DECLARE @CompanyGroupSites_Added TABLE (
                                              CompanyGroupID int,
                                              CompanyID varchar(12)                                    
                                           )

    DECLARE @CompanyGroupSites_Master TABLE (
                                              CompanyGroupID int,
                                              CompanyID varchar(12)
                                           )
    Insert into @CompanyGroupSites_Master select CompanyGroupID, CompanyID from Sec.CompanyGroupSites                        

    DECLARE @CompanyGroupID int                         
    DECLARE @Company int

    ----------------  END SETUP ----------------

    ---------------- UPDATE THE COMPANIES ----------------

    DECLARE Companies_Cursor CURSOR FOR (select distinct BusinessLine from vwBuisinessUnit)  
    --select distinct BU, BusinessLine from vwBusinessUnit

    Open Companies_Cursor

    Fetch NEXT FROM Companies_Cursor into @Company

    WHILE @@FETCH_STATUS = 0
    BEGIN

        -- is there an existing CompanyGroup for this Organization?  If not create it
        SET @CompanyGroupID = ( select CompanyGroupID from Sec.CompanyGroup 
                                where size = 'Business'
                                and CompanyGroupDesc = @Company)

        IF(@CompanyGroupID < 1) 
        BEGIN
            INSERT INTO @CompanyGroups_Added ([CompanyGroupDesc], [Size])
            VALUES (@Company, 'Business')

            SET @CompanyGroupID = @@IDENTITY

            select @CompanyGroupID as CompanyGroupID_Added -- testing
        END

        Select ToDelete.* from (
            select CompanyGroupID, Company 
            from @CompanyGroupSites_Master 
            where @CompanyGroupSites_Master.CompanyGroupID = @CompanyGroupID) as ToDelete

        delete from @CompanyGroupSites_Master where @CompanyGroupSites_Master.CompanyGroupID = @CompanyGroupID

        Fetch NEXT FROM Companies_Cursor into @Company
    END


    CLOSE Companies_Cursor
    DEALLOCATE Companies_Cursor

END

Answer 1:

这是一个长期的解析器问题 。 你需要摆脱表前缀或在方括号包裹。

即

delete from @CompanyGroupSites_Master 
where CompanyGroupID = @CompanyGroupID

要么

delete from @CompanyGroupSites_Master 
where [@CompanyGroupSites_Master].CompanyGroupID = @CompanyGroupID

不

delete from @CompanyGroupSites_Master 
where @CompanyGroupSites_Master.CompanyGroupID = @CompanyGroupID

文章来源: How to fix “Must declare the scalar variable” error when referencing table variable?