あるテーブルから別のテーブルに大量のデータをコピーしたいのですが、ストアド プロシージャでカーソルを使用して同じことを行いました。ハングしました。データをより高速にコピーする方法を提案してください。私の SP は次のとおりです。
--exec uds_shop
--select * from CMA_UDS.dbo.Dim_Shop
--select * from UDS.dbo.Dim_Shop
--delete from CMA_UDS.dbo.Dim_Shop
alter procedure uds_shop
as
begin
declare @dwkeyshop int
declare @shopdb int
declare @shopid int
declare @shopname nvarchar(60)
declare @shoptrade int
declare @dwkeytradecat int
declare @recordowner nvarchar(20)
declare @LogMessage varchar(600)
Exec CreateLog 'Starting Process', 1
DECLARE cur_shop CURSOR FOR
select
DW_Key_Shop,Shop_ID,Shop_Name,Trade_Sub_Category_Code,DW_Key_Source_DB,DW_Key_Trade_Category,Record_Owner
from
UDS.dbo.Dim_Shop
OPEN cur_shop
FETCH NEXT FROM cur_shop INTO @dwkeyshop,@shopid,@shopname,@shoptrade, @shopdb ,@dwkeytradecat,@recordowner
WHILE @@FETCH_STATUS = 0
BEGIN
Set @LogMessage = ''
Set @LogMessage = 'Records insertion/updation start date and time : ''' + Convert(varchar(19), GetDate()) + ''''
if (isnull(@dwkeyshop, '') <> '')
begin
if not exists (select crmshop.DW_Key_Shop from CMA_UDS.dbo.Dim_Shop as crmshop where (convert(varchar,crmshop.DW_Key_Shop)+CONVERT(varchar,crmshop.DW_Key_Source_DB)) = convert(varchar,(CONVERT(varchar, @dwkeyshop) + CONVERT(varchar, @shopdb))) )
begin
Set @LogMessage = Ltrim(Rtrim(@LogMessage)) + ' ' + 'Record for shop table is inserting...'
insert into
CMA_UDS.dbo.Dim_Shop
(DW_Key_Shop,DW_Key_Source_DB,DW_Key_Trade_Category,Record_Owner,Shop_ID,Shop_Name,Trade_Sub_Category_Code)
values
(@dwkeyshop,@shopdb,@dwkeytradecat,@recordowner,@shopid,@shopname,@shoptrade)
Set @LogMessage = Ltrim(Rtrim(@LogMessage)) + ' ' + 'Record successfully inserted in shop table for shop Id : ' + Convert(varchar, @shopid)
end
else
begin
Set @LogMessage = Ltrim(Rtrim(@LogMessage)) + ' ' + 'Record for Shop table is updating...'
update
CMA_UDS.dbo.Dim_Shop
set DW_Key_Trade_Category=@dwkeytradecat,
Record_Owner=@recordowner,
Shop_ID=@shopid,Shop_Name=@shopname,Trade_Sub_Category_Code=@shoptrade
where
DW_Key_Shop=@dwkeyshop and DW_Key_Source_DB=@shopdb
Set @LogMessage = Ltrim(Rtrim(@LogMessage)) + ' ' + 'Record successfully updated for shop Id : ' + Convert(varchar, @shopid)
end
end
Exec CreateLog @LogMessage, 0
FETCH NEXT FROM cur_shop INTO @dwkeyshop,@shopid,@shopname,@shoptrade, @shopdb ,@dwkeytradecat,@recordowner
end
CLOSE cur_shop
DEALLOCATE cur_shop
End