Commit after every 1000 records
Hi dears ,
i have to update or insert arround 1 lakhs records every day incremental basis,
while doing it , after completing all the records commit happens, In case some problem in between all my processed records are getting rollbacked,
I need to commit it after every frequency of records say 1000 records.
Any one know how to do it??
Thanks in advance
Regards
Raja
Raja,
There is an option in the configuration of a mapping in which you can set the Commit Frequency. The Commit Frequency only applies to non-bulk mode mappings. Bulk mode mappings commit according the bulk size (which is also an configuration setting of the mapping).
When you set the Default Operating Mode to row based and Bulk Processing Code to false, Warehouse Builder uses the Commit Frequency parameter when executing the package. Warehouse Builder commits data to the database after processing the number of rows specified in this parameter.
If you set Bulk Processing Code to true, set the Commit Frequency equal to the Bulk Size. If the two values are different, Bulk Size overrides the commit frequency and Warehouse Builder implicitly performs a commit for every bulk size.
Regards,
Ilona
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Commit for every 1000 records in Insert into select statment
Hi I've the following INSERT into SELECT statement .
The SELECT statement (which has joins ) has around 6 crores fo data . I need to insert that data into another table.
Please suggest me the best way to do that .
I'm using the INSERT into SELECT statement , but i want to use commit statement for every 1000 records .
How can i achieve this ..
insert into emp_dept_master
select e.ename ,d.dname ,e.empno ,e.empno ,e.sal
from emp e , dept d
where e.deptno = d.deptno ------ how to use commit for every 1000 records .ThanksSmile wrote:
Hi I've the following INSERT into SELECT statement .
The SELECT statement (which has joins ) has around 6 crores fo data . I need to insert that data into another table.Does the another table already have records or its empty?
If its empty then you can drop it and create it as
create your_another_table
as
<your select statement that return 60000000 records>
Please suggest me the best way to do that .
I'm using the INSERT into SELECT statement , but i want to use commit statement for every 1000 records .That is not the best way. Frequent commit may lead to ORA-1555 error
[url http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:275215756923]A nice artical from ASKTOM on this one
How can i achieve this ..
insert into emp_dept_master
select e.ename ,d.dname ,e.empno ,e.empno ,e.sal
from emp e , dept d
where e.deptno = d.deptno ------ how to use commit for every 1000 records .
It depends on the reason behind you wanting to split your transaction into small chunks. Most of the time there is no good reason for that.
If you are tying to imporve performance by doing so then you are wrong it will only degrade the performance.
To improve the performance you can use APPEND hint in insert, you can try PARALLEL DML and If you are in 11g and above you can use [url http://docs.oracle.com/cd/E11882_01/appdev.112/e25788/d_parallel_ex.htm#CHDIJACH]DBMS_PARALLEL_EXECUTE to break your insert into chunks and run it in parallel.
So if you can tell the actual objective we could offer some help. -
Commit in procedures after every 100000 records possible?
Hi All,
I am using an ODI procedure to insert data into a table.
I checked that in the ODI procedure there is an option of selecting transaction and setting the commit option as 'Commit after every 1000 records'.
Since the record count to be inserted is 38489152, I would like to know is this option configurable.
Can i ensure that commits are made at a logical step of 100000 instead of 1000 records?
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http://dwteam.in/commit-interval-in-odi/
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Need to commit after every 10 000 records inserted ?
What would be the best way to Commit after every 10 000 records inserted from one table to the other using the following script :
DECLARE
l_max_repa_id x_received_p.repa_id%TYPE;
l_max_rept_id x_received_p_trans.rept_id%TYPE;
BEGIN
SELECT MAX (repa_id)
INTO l_max_repa_id
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we are moving between 5 and 10 million records from the one table to the other table and it takes forever.
Please could you provide me with a script just to commit after every x amount of records ? :)I concur with the other responses.
Committing every N records will slow down the process, not speed it up.
The fastest way to move your data (and 10 million rows is nothing, we do those sorts of volumes frequently ourselves) is to use a single SQL statement to do an INSERT ... SELECT ... statement (or a CREATE TABLE ... AS SELECT ... statement as appropriate).
If those SQL statements are running slowly then you need to look at what's causing the performance issue of the SELECT statement, and tackle that issue, which may be a case of simply getting the database statistics up to date, or applying a new index to a table etc. or re-writing the select statement to tackle the query in a different way.
So, deal with the cause of the performance issue, don't try and fudge your way around it, which will only create further problems. -
Avoid Commit after every Insert that requires a SELECT
Hi everybody,
Here is the problem:
I have a table of generator alarms which is populated daily. On daily basis there are approximately 50,000 rows to be inserted in it.
Currently i have one month's data in it ... Approximately 900,000 rows.
here goes the main problem.
before each insert command, whole table is checked if the record does not exist already. Two columns "SiteName" and "OccuranceDate" are checked... this means, these two columns are making a unique record when checked together with an AND operation in WHERE clause.
we have also implemented partition on this table. and it is basically partitioned on the basis of OccuranceDate and each partition has 5 days' data.
say
01-Jun to 06 Jun
07-Jun to 11 Jun
12-Jun to 16 Jun
and so on
26-Jun to 30 Jun
NOW:
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Question:
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a friend told me that, you can query the records which are inserted in the same connection session but not yet committed.
Can any one help ?
Sorry for the long question but it was to make u understand the real issue. :(
Khalid Mehmood Awan
khalidmehmoodawan @ gmail.com
Edited by: user5394434 on Jun 30, 2009 11:28 PMDon't worry about it - I just said that because the experts over there will help you much better. If you post your code details there they will give suggestions on optimizing it.
Doing a SELECT between every INSERT doesn't seem very natural to me, but it all depends on the details of your code.
Also, not committing on time may cause loss of the uncommitted changes. Depending on how critical the data is and the dependency of the changes, you have to commit after every INSERT, in between, or at the end.
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K. -
Message split for every 1000 records
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ResultSet "hangs" after every 10 records
Hi
Please could you somebody help me.
I have extracted a ResultSet from a database which contains between 100 and 200 records (5 field each).
If I call rset.next(), printing a count after each call my program hangs for about 2 minutes after every 10 records.
For example:
int count = 0;
while(rset.next()) {
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1
2
3
4
5
6
7
8
9
10
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11
20
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I'm getting probelms with the following procedure. Is there any that I can do to commit after every 10,000 rows of deletion? Or is there any other alternative! The DBAs are not willing to increase the undo tablespace value!
create or replace procedure delete_rows(v_days number)
is
l_sql_stmt varchar2(32767) := 'DELETE TABLE_NAME WHERE ROWID IN (SELECT ROWID FROM TABLE_NAME W
where_cond VARCHAR2(32767);
begin
where_cond := 'DATE_THRESHOLD < (sysdate - '|| v_days ||' )) ';
l_sql_stmt := l_sql_stmt ||where_cond;
IF v_days IS NOT NULL THEN
EXECUTE IMMEDIATE l_sql_stmt;
END IF;
end;I think I can use cursors and for every 10,000 %ROWCOUNT, I can commit, but even before posting the thread, I feel i will get bounces! ;-)
Please help me out in this!
Cheers
Sarma!Hello
In the event that you can't persuede the DBA to configure the database properly, Why not just use rownum?
SQL> CREATE TABLE dt_test_delete AS SELECT object_id, object_name, last_ddl_time FROM dba_objects;
Table created.
SQL>
SQL> select count(*) from dt_test_delete WHERE last_ddl_time < SYSDATE - 100;
COUNT(*)
35726
SQL>
SQL> DECLARE
2
3 ln_DelSize NUMBER := 10000;
4 ln_DelCount NUMBER;
5
6 BEGIN
7
8 LOOP
9
10 DELETE
11 FROM
12 dt_test_delete
13 WHERE
14 last_ddl_time < SYSDATE - 100
15 AND
16 rownum <= ln_DelSize;
17
18 ln_DelCount := SQL%ROWCOUNT;
19
20 dbms_output.put_line(ln_DelCount);
21
22 EXIT WHEN ln_DelCount = 0;
23
24 COMMIT;
25
26 END LOOP;
27
28 END;
29 /
10000
10000
10000
5726
0
PL/SQL procedure successfully completed.
SQL>HTH
David
Message was edited by:
david_tyler -
Dear Friiends,
I would like to write down query which also returns the total of some columns after every 25 records.
like this
ccno salary
1 5000
2 10000
25 80000
total <total of above 25>
26 25000
27 10000
50 13000
total <total of above 50>
can we achieve this
Waiting for reply .with tab as (
select 1 ccno,100 salary from dual union all
select 2 ccno,200 salary from dual union all
select 3 ccno,300 salary from dual union all
select 4 ccno,400 salary from dual union all
select 5 ccno,500 salary from dual union all
select 6 ccno,600 salary from dual union all
select 7 ccno,700 salary from dual
)--end of test data
select ccno,
salary,
case when mod(row_number() over (order by ccno), 3) = 0 then sum(salary) over (order by ccno) else null end as sumsal
from tab
CCNO SALARY SUMSAL
1 100
2 200
3 300 600
4 400
5 500
6 600 2100
7 700
7 rows selectedChange the 3 in the mod to 25 for your data -
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Trigger for every 1000 record insert
Hi
I am working in oracle 9i / Aix 5.3
I need a trigger which should fire whenever my temp_table growing 1000,2000...etc.,
The records should reach me in the body of email.
Like
Hi
The temp_table count has been reached to 1000.
Thanks
second time execution...
Hi
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etc.,
How can i achieve this? I'm ok to shell script also for the above functionality
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RajWhy do you want to do this?
SQL> create table temp_table (x number);
Table created.
SQL> ed
Wrote file afiedt.buf
1 create or replace function temp_table_cnt return number is
2 pragma autonomous_transaction;
3 v_cnt number;
4 begin
5 select count(*) into v_cnt from temp_table;
6 return v_cnt;
7* end;
SQL> /
Function created.
SQL> ed
Wrote file afiedt.buf
1 create or replace trigger trg_a_temp_table
2 after insert on temp_table
3 for each row
4 declare
5 v_cnt number;
6 begin
7 v_cnt := temp_table_cnt();
8 if mod(v_cnt,1000) = 0 then
9 dbms_output.put_line('Email Sent for '||v_cnt||' records.');
10 end if;
11* end;
SQL> /
Trigger created.
SQL> set serverout on
SQL> ed
Wrote file afiedt.buf
1 begin
2 for i in 1..3456
3 loop
4 insert into temp_table values (i);
5 commit;
6 end loop;
7* end;
SQL> /
Email Sent for 0 records.
Email Sent for 1000 records.
Email Sent for 2000 records.
Email Sent for 3000 records.
PL/SQL procedure successfully completed.
SQL>... however I wouldn't consider this good design, as it requires each of the rows to be committed so that the autonomous transaction procedure can count the number of rows on the table. Of course, if the rows are being inserted through, let's say, user input and are committed on a 1 by 1 basis anyway, then it's perfectly acceptable, but I wouldn't use it for bulk insertions. -
Select query for every 1000 records
Hi all ,
Please help me in the issue . I am using select query Select * from table up to 1000 rows for acheving the records but i want this process to retrigger once the process of 1000 records is compleded again it needs to fetch the next 1000 records and process the same . I am changing the status of the processed records once it is processed . Can can one tell me how to retrigger the select query once the 1000 records are processes.
Thanks in advance,Hi Eric,
After selecting the 1000 records, find the key value of the last record. Build up the range as GT. Again use the select query.
For example,
Select * into table lt_data from ztab
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up to 1000 rows.
regards,
Niyaz -
Add a row after every n records
Hi
I have a query that returns only one column
Column1
a
b
c
d
g
e
f
g
h
I want to add 01 as the first row and then after 5 records i want to add 02 then 03 after another 5 records and so on i.e
Column1
01
a
b
c
d
e
02
f
g
h
How can this be done?Hi,
Nice post.
Regards salim.
other solution.
SELECT res
FROM t
model
dimension by( row_number()over(partition by 1 order by rownum) rn)
measures(col1,cast ( col1 as varchar2(20)) as res, count(1)over(partition by 1) cpt,trunc(rownum/5) diff)ignore nav
(diff[for rn from 1 to cpt[1]+trunc((cpt[1]+cpt[1]/5)/5) increment 1]=
case when diff[cv(rn)] is present then diff[cv(rn)]
else case when mod(cv(rn),5)=0 then
diff[cv(rn)-1]+1
else diff[cv(rn)-1]end
end,
res[for rn from 1 to cpt[1]+trunc((cpt[1]+cpt[1]/5)/5) increment 1]=
case when mod(cv(rn),5)=0 then
to_char((cv(rn)/5),'fm00')
else col1[cv(rn)-diff[cv(rn)]]end )
SQL> WITH t AS
2 (SELECT 'a' col1
3 FROM DUAL
4 UNION ALL
5 SELECT 'b'
6 FROM DUAL
7 UNION ALL
8 SELECT 'c'
9 FROM DUAL
10 UNION ALL
11 SELECT 'd'
12 FROM DUAL
13 UNION ALL
14 SELECT 'g'
15 FROM DUAL
16 UNION ALL
17 SELECT 'e'
18 FROM DUAL
19 UNION ALL
20 SELECT 'f'
21 FROM DUAL
22 UNION ALL
23 SELECT 'g'
24 FROM DUAL
25 UNION ALL
26 SELECT 'h'
27 FROM DUAL
28 UNION ALL
29 SELECT 'i'
30 FROM DUAL
31 UNION ALL
32 SELECT 'j'
33 FROM DUAL
34 UNION ALL
35 SELECT 'k'
36 FROM DUAL
37 UNION ALL
38 SELECT 'l'
39 FROM DUAL
40 UNION ALL
41 SELECT 'm'
42 FROM DUAL
43 UNION ALL
44 SELECT 'o'
45 FROM DUAL
46 UNION ALL
47 SELECT 'p'
48 FROM DUAL
49 UNION ALL
50 SELECT 'q'
51 FROM DUAL
52 UNION ALL
53 SELECT 'z'
54 FROM DUAL
55 UNION ALL
56 SELECT 'z'
57 FROM DUAL
58 UNION ALL
59 SELECT 'z'
60 FROM DUAL
61 UNION ALL
62 SELECT 'y'
63 FROM DUAL)
64 SELECT res
65 FROM t
66 model
67 dimension by( row_number()over(partition by 1 order by rownum) rn)
68 measures(col1,cast ( col1 as varchar2(20)) as res, count(1)over(partition by 1) cpt,trunc(rownu
m/5) diff)ignore nav
69 (diff[for rn from 1 to cpt[1]+trunc((cpt[1]+cpt[1]/5)/5) increment 1]=
70 case when diff[cv(rn)] is present then diff[cv(rn)]
71 else case when mod(cv(rn),5)=0 then
72 diff[cv(rn)-1]+1
73 else diff[cv(rn)-1]end
74 end,
75 res[for rn from 1 to cpt[1]+trunc((cpt[1]+cpt[1]/5)/5) increment 1]=
76 case when mod(cv(rn),5)=0 then
77 to_char((cv(rn)/5),'fm00')
78 else col1[cv(rn)-diff[cv(rn)]]end )
79
SQL> /
RES
a
b
c
d
01
g
e
f
g
02
h
i
j
k
03
l
m
o
p
04
q
z
z
z
05
y
26 ligne(s) sélectionnée(s).
SQL> Edited by: Salim Chelabi on 2009-04-15 13:35 -
Commit after every three UPDATEs in CURSOR FOR loop
DB Version: 11g
I know that experts in here despise the concept of COMMITing inside loop.
But most of the UPDATEs being fired by the code below are updating around 1 million records and it is breaking our UNDO tablespace.
begin
for rec in
(select owner,table_name,column_name
from dba_tab_cols where column_name like 'ABCD%' and owner = p_schema_name)
loop
begin
execute immediate 'update '||rec.owner||'.'||rec.table_name||' set '||rec.column_name|| ' = '''||rec.owner||'';
end;
end loop;
end;We are not expecting ORA-01555 error as these are just batch updates.
I was thinking of implementing something like
FOR i IN 1..myarray.count
LOOP
DBMS_OUTPUT.PUT_LINE('event_key at' || i || ' is: ' || myarray(i));
INSERT INTO emp
empid,
event_id,
dept,
event_key
VALUES
v_empid,
3423,
p_dept,
myarray(i)
if(MOD(i, p_CommitFreq) = 0) --- When the loop counter becomes fully divisible by p_commit_frequency, it COMMITs
then
commit;
end if;
END LOOP;(Found from an OTN thread)
But i don't know how to access the loop counter value in a CURSOR FOR loop.To be fair, what is really despised is code that takes an operation that could have been performed in a single SQL statement and steps through it in the slowest possible way, committing pointlessly as it goes along (exactly like the example you found). Your original version doesn't do that - it looks more like some sort of one-off migration where you have to set every value of every column that matches some naming standard pattern to a constant. If that's the case, and if there are huge volumes involved and you can't simply add a bit more undo, then I don't see much wrong with committing after each update, especially if you track how far you've got so you can restart cleanly if it fails.
If you really want an incrementing counter in an unnamed cursor, apart from the explicit variable others have suggested, you could add rownum to the cursor (alias it to something that isn't an Oracle keyword), although it could complicate the ORDER BY that you might be considering for the restart logic. You could have that instead of the redundant 'owner' column in your example which is always the same as the constant p_schema_name.
Another approach would be to keep track of SQL%ROWCOUNT after each update by adding it to a variable, and commit when the total number of rows updated so far reaches, say, a million.
Could the generated statement use a WHERE clause, or does it really have to update every row in every table it finds?
Could there be more than one column to update per table? If so it might be worth generating one multi-column update statement per table, although it'll complicate things a bit.
btw you don't need the inner 'begin' and 'end' keywords, and whoever supplied the MOD example you found should know that three or four spaces usually make a good indent and you don't need brackets around IF conditions. -
Commit after 2000 records in update statement but am not using loop
Hi
My oracle version is oracle 9i
I need to commit after every 2000 records.Currently am using the below statement without using the loop.how to do this?
do i need to use rownum?
BEGIN
UPDATE
(SELECT A.SKU,M.TO_SKU,A.TO_STORE FROM
RT_TEMP_IN_CARTON A,
CD_SKU_CONV M
WHERE
A.SKU=M.FROM_SKU AND
A.SKU<>M.TO_SKU AND
M.APPROVED_FLAG='Y')
SET SKU = TO_SKU,
TO_STORE=(SELECT(
DECODE(TO_STORE,
5931,'931',
5935,'935',
5928,'928',
5936,'936'))
FROM
RT_TEMP_IN_CARTON WHERE TO_STORE IN ('5931','5935','5928','5936'));
COMMIT;
end;
Thanks for your helpI need to commit after every 2000 recordsWhy?
Committing every n rows is not recommended....
Currently am using the below statement without using the loop.how to do this?Use a loop? (not recommended)
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