Не выполняется хранимая процедура

var SQL  = 'UPDATE tbl_Opportunity set ImportMark = null where ImportMark is not null and TypeID = ';
SQL += "'{A6CD76D6-E61F-4755-B223-AC33C68F870F}'";
var Parameters = System.CreateObject('TSObjectLibrary.Parameters');	
CreateSPParameter(Parameters, 'SQLText', pdtString, SQL);
var SQLCommand = 'execute [dbo].[tsp_UpdateWorkspaceRecords] :SQLText';
Connector.DBEngine.ExecuteCustomSQL(SQLCommand, Parameters);

select * FROM [LS_EXCEL]...[Магистрали$]

AdoLoadUdl.IsolationLevel:=ilChaos

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[spChangeMagistral]
	@FileID uniqueidentifier,
	@ContactID uniqueidentifier
AS
DECLARE @BufLen int
DECLARE @BufPos int
DECLARE @Buffer varbinary(4096)
DECLARE @Stream int
DECLARE @HR int
DECLARE @Filename varchar(max)
declare @CurrentDate datetime
BEGIN
 
	SELECT @BufPos = 1, @BufLen = DATALENGTH(DataFile) FROM [dbo].tbl_FileTariffs WHERE ID = @FileID
	set @Filename = 'E:\TariffXLS\magistral.xlsx'
 
    EXEC @HR = sp_OACreate 'ADODB.Stream',@Stream OUT
    EXEC @HR = sp_OASetProperty @Stream,'Type',1
	EXEC @HR = sp_OASetProperty @Stream,'Mode',3
    EXEC @HR = sp_OAMethod @Stream,'Open'
 
    WHILE @BufLen > 0 BEGIN
        SELECT @Buffer = SUBSTRING(DataFile,@BufPos,4096) FROM [dbo].tbl_FileTariffs WHERE id = @FileID
        EXEC @HR = sp_OAMethod @Stream,'Write',null,@Buffer
        SELECT @BufLen = @BufLen - 4096, @BufPos = @BufPos + 4096
    END
 
    EXEC @HR = sp_OAMethod @Stream, 'SaveToFile',Null, @Filename, 2
	exec @Filename = sp_OAGetErrorInfo @HR
    EXEC @HR = sp_OAMethod @Stream, 'Close'
    EXEC @HR = sp_OADestroy @Stream
 
	set @CurrentDate = GETDATE()
 
        --select * FROM [Link_EXCE]...[Магистрали$]
 
	--select * from openquery(Link_EXCEL,' select * from [Магистрали$]')
 
	--select f1, f2, f3, f4*1000, f5, f26, cast(f27 as decimal(18,2)), f28, f29, f30, f31, f32, f33 FROM [Link_EXCEL]...[Магистрали$] where f1 is not null and f2 is not null and f1 <> 'Название';
 
	--SELECT * FROM OpenrowSet('Microsoft.ACE.OLEDB.12.0','Excel 12.0;Database=E:\TariffXLS\magistral.xlsx;','SELECT * FROM [Магистрали$]') 
 
	--SELECT * FROM OPENDATASOURCE('Microsoft.ACE.OLEDB.12.0','E:\TariffXLS\magistral.xlsx;Extended Properties=EXCEL 12.0')...[Магистрали$]
 
	/*
	insert into tbl_LineFiberTariffs_TEST (id,CreatedOn, CreatedByID, ModifiedOn, ModifiedByID,
	Name,Address1,Address2,LengthLine,ProjectNumber,CountFiberID,SaleLine,ServiceLine,RentOneTime10year,RentMonth10year,RentOneTimeOperator,
	RentMonthOperator,RentOneTimeCorp,RentMonthCorp,BeginDate,EndDate, FileID)
	SELECT newid(),@CurrentDate,@ContactID,@CurrentDate,@ContactID, f1, f2, f3, f4*1000, f5, fc.ID, f26, 
	cast(f27 as decimal(18,2)), f28, f29, f30, f31, f32, f33, @CurrentDate, null, @FileID
	FROM [Link_EXCEL]...[Магистрали$] ls
	left outer join tbl_FiberCount fc on fc.CountValue = cast(ls.f6 as varchar(20))
	where f1 is not null and f2 is not null and f4 is not null
	*/
END

select * FROM [Link_EXCE]...[Магистрали$]