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我在SQL Server上遇到这个奇怪的错误.我在旧帖子中找不到解决方案.

我有这个程序:

create proc _upJM_SyncAll_test
as
begin
    DECLARE @SQLString nvarchar(max)

set @SQLString = N'
DELETE FROM OPENQUERY([LOCAL_MYSQL],''SELECT acSubject FROM _utjm_setitemprices'') where acSubject not in (select acSubject from _uvJM_SetSubj)
DELETE FROM OPENQUERY([LOCAL_MYSQL],''SELECT acSubject FROM _utjm_setsubj'') where acSubject not in (select acSubject from _uvJM_SetSubj)

update a
set acName2 = b.acName2,
    acName3 = b.acName3,
    acAddress = b.acAddress,
    acPost = b.acPost,
    acPostName = b.acPostName, 
    acCountry = b.acCountry, 
    acVATCodePrefix = b.acVATCodePrefix,
    acCode = b.acCode, 
    anDaysForPayment = b.anDaysForPayment
from OPENQUERY([LOCAL_MYSQL],''SELECT * FROM _utjm_setsubj'') a join …