Deletion Old Data In Replication Environment
Hi to all
I have a question about deletion of amount of data:
My production environment is this one:
- one publisher with a database (historycal events)
- 50 subscribers with the prev database in unidirectional replication
unidirectional (from subscribers to publisher)
My target was capturing events from the subscribers to send them to
publisher (later I can do reports on it).
Once the data is on the server i don't need them any more in subscribers.
Now I would like to delete the oldest data (year 2003) of some table on the
publisher (remember that replication is unidirectional S->P).
The tables contain about 6-7 millions of records.
I delete one month per time. The process is about 30 minutes long and the
merge agent subscribers changes in retry state.
Can I use these queries to make faster this process? Eventually what kind of
problems can I have ?
DELETE FROM mydb WITH (PAGLOCK) WHERE mydb.dbo.mydate Between date1 and
date2
or
DELETE FROM mydb WITH (ROWLOCK) WHERE mydb.dbo.mydate Between date1 and
date2
Thank you very much for your support.
Marco
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Hi, I have this trigger, it is working fine when i add new data but it doesn't work when I delete data from the table? Any idea? Any help will be highly appreciated. CREATE TRIGGER [PROP_AMT] ON [dbo].[cqe_item] FOR INSERT, UPDATE, DELETE AS DECLARE @var_DB_contract INTEGER, @var_CQE INTEGER, @var_PC INTEGER, @var_item VARCHAR(7), @var_AMT_PAID INTEGER, @var_AMT_RET INTEGER, @var_ITEM_NEW VARCHAR(1), @var_quant DECIMAL, @var_fiyr INTEGER, @var_amt_result INTEGER, @var_amt_ret_result INTEGER, @var_amt_old INTEGER, @var_amt_ret_old INTEGER, @var_quant_result INTEGER, @var_quant_new INTEGER, @var_quant_old INTEGER, @Item_new VARCHAR(7), @var_chk varchar(1) --If Exists (Select 1 From Inserted) And Exists (Select 1 From Deleted) set @var_db_contract =(SELECT a.db_contract FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) IF @var_db_contract IS NOT NULL BEGIN SET @var_db_contract=(SELECT a.db_contract FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_cqe=(SELECT a.cqe_numb FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_pc=(SELECT a.pc_code FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_item=(SELECT a.item_no FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_fiyr=(SELECT a.fy_item FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) set @var_chk ="Y" END ELSE BEGIN SET @var_db_contract=(SELECT a.db_contract FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_cqe=(SELECT a.cqe_numb FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_pc=(SELECT a.pc_code FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_item=(SELECT a.item_no FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_fiyr=(SELECT b.fy_item FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) set @var_chk="N" END SET @var_amt_paid=(SELECT a.amt_paid_item FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_amt_old=(SELECT b.amt_paid_item FROM inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no ) SET @var_amt_result =ISNULL(@var_amt_paid,0) - ISNULL(@var_amt_old,0) SET @var_amt_ret = (SELECT a.amt_ret_item from inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no) SET @var_amt_ret_old=(SELECT b.amt_ret_item from inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no) SET @var_amt_ret_result = isnull(@var_amt_ret,0) - isnull(@var_amt_ret_old,0) SET @var_quant_new = (SELECT a.quantity from inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no) SET @var_quant_old =(SELECT b.quantity from inserted a,deleted b where a.db_contract = b.db_Contract and a.cqe_numb = b.cqe_numb and a.pc_code = b.pc_code and a.item_no = b.item_no) SET @var_quant_result = isnull(@var_quant_new,0) - isnull(@var_quant_old,0) SELECT @item_new = new_item FROM VALID_ITEM WHERE DB_CONTRACT = @var_db_contract AND PC_CODE = @var_PC AND ITEM_NO = @var_ITEM UPDATE ae_contract set amt_paid_contr = isnull(amt_paid_contr,0) +@var_amt_result, amt_ret_contr = isnull(amt_ret_contr,0) + @var_amt_ret_result where db_contract = @var_db_contract IF @item_new = 'N' BEGIN update vendor set used_amt = isnull(used_amt,0) + @var_amt_result + @var_amt_ret_result where db_vendor = (select gen_contr from ae_contract where ae_contract.db_contract=@var_db_contract); END UPDATE enc_det set amt_paid_fy = isnull(amt_paid_fy,0) + @var_amt_result, amt_ret_fy = isnull(amt_ret_fy,0) + @var_amt_ret_result where db_contract = @var_db_contract and pc_code = @var_pc and fy = @var_fiyr UPDATE valid_item set tamt_ret_item = isnull(tamt_ret_item,0) + @var_amt_ret_result, tamt_paid_item = isnull(tamt_paid_item,0) + @var_amt_result, qtd = isnull(qtd,0) + @var_quant_result where db_contract = @var_db_contract and pc_code = @var_pc and item_no = @var_item
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