Need Information ..Related to temp Space

Hi all,
I want to know tht is there any in Oracle to create logical table tht will not b in existence after it is no longer in use..
Like i have 1 procedure in which 1 query will fetch some records and i have to store tht resultset in some temp table tht is not required after da procedure ends..
I want to use da date for processing forward ..but at last i dnt need tht space which is havin resultset now..
I dnt want to use cursor b'coz again i have to declare some local variables to get value from tht..
Right now i m creating table dynamically and at last i m droppin it .. but when 2 user use da proc at same time it will give err Table name already in use..
So wt i need tht for each user a temporary table will b created and at last tht will b droped ..no physical existence shud b there..
I have used GLOBAL Temporary Table but tht also not giving desired result..
Ps suggest me any way to do it..

Do you use your telephone to post to this forum ?
Why isn't the GTT solving the problem for you ? Is it for any reason other than the fact that it persists as an object after the procedure has finished ?
You have said that if more than one person runs the procedure, then with an "on-the-fly" table this causes problems with "table already exists/does not exist". So the GTT solves that issue nicely.
And if more than one person is running it, then surely you have a longer-term need for it than just one run ?
Just use the GTT and unless you want all traces removed because you are up to no good, then live with the fact that the table exists and your procedure/package is still valid. You want to get rid of them ? Drop them after or make a call to DBMS_JOB as the very last line of your procedure to drop both the table and the procedure in n minutes time.

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Goodday,
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Hi,
I had developed my application using oracle 10g enterprise edition and now i wanna to shift the entire thing to oracle 10g standard edition.
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2) what are the difference between both the edition.
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Edited by: Anit A. on Sep 5, 2008 12:24 AM

Hi Anit,
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Donald K. Burleson
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How much TEMP space needed for datapump import?

How does one accurately predict how much TEMP table-space is needed prior to starting a data-pump import (via impdp)? I need a way to predetermine this BEFORE starting the import. It is my understanding that in data-pump imports, temp table-spaces are primarily used for the building of indexes among other operations.

Yes, I could use autoextend but that just shifts the problem of checking the logical table-space size to checking the physical space to see that it has enough room to extend.
I was really hoping for a formula to calculate the amount of TEMP space it would take up. For example, RichardHarrison's post above about setting the TEMP table-space size to be twice as large as the largest index, but wasn't sure on the accuracy of that statement. I was hoping someone has encountered this kind of scenario before and found an accurate way to predict how much space is really needed, or a good estimate to go by.
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Problem with temp space allocation in parallel query

Hello
I've got a query which matches two large result sets (25m+ rows) against each other and does some basic filtering and aggregation. When I run this query in serial it takes about 30 mins and completes successfully. When I specify a parallel degree of 4 for each result set, it also completes successfully in about 20 minutes. However, when I specify that it should be run in parallel but don't specify a degree for each result set, it spawns 10 parallel servers and after a couple of minutes, bombs out from one of the parallel servers with:
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Hello
I've finally resolved this and the resolution was relatively simple - and was also the main thing that Mark Rittman said he did in his article: reduce the size of the hash join.
After querying v$sql_workarea_active I could see what was happening which was that the sum of the temp space for all of the parallel slaves was exceeding the total amount of temp space available on the system. When run in serial, it was virtually at the limit. I guess the extra was just the overhead for each slave maintaining it's own hash table.
I also made the mistake of misreading the exectuion plan - assuming that the data being pushed to the hash join was filtered to eliminate the data that was not of interest. Upon reflection, this was a rather stupid assumption on my part. Anyway, I used sub query factoring with the materialize hint to ensure that the hash join was only working on the data it should have been. This significantly reduced the size of the hash table and therefore the amount of temp space required.
I did speak to oracle support and they suggested using pga_aggregate_target rather than the separate *area_size parameters. I found that this had very little impact as the problem was related to the volume of data rather than whether it was being processed in memory or not. That said, I did try upping the hash_area_size for the session with some initial success, but ultimately it didn't prove to be scalable. We are however now using pga_aggregate_target in prod.
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HTH
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Relation between temp tablespace and index creation

Hi,
I have my Oracle database (11gR1) on windows 2008 server R1 64 bit..
This is my development database. i have one table which has more than 2 billion rows , the problem i m facing here is while creating the index on this table i m getting temp segment error , while my temp tablespace size is 32 gb.
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1.What will happen in temp tablespace when index is created ? Relation between temp and index creation ?
2. how to create the index on a huge table?
3. What is the meaning og logging and no logging in INDEX creation .
4. how can we over come for these kind of problem and manage the temp TS..
Thanks & Regards,
Vikash Chauradia

add another tempfile?
1.What will happen in temp tablespace when index is created ? Relation between temp and index creation ?
index creation needs sort. how much depends on the size of the index.
2. how to create the index on a huge table?
create an interim (temporary? :)) huge temporary space for the very purpose.
http://docs.oracle.com/cd/B28359_01/server.111/b28310/indexes003.htm#i1006643
3. What is the meaning og logging and no logging in INDEX creation .
nologging means you the creation isnt in the logs so if you need to recover you cant get back to it. when using nologging in a prod env you might do it for performance during a period of heavy dml such as a large index creation and then backup afterwards. common enough.
4. how can we over come for these kind of problem and manage the temp TS..
current tempspace size =X
is X big enough? if yes, cup of tea, if no, make X bigger.
It doesnt matter what X is.

Maximum TEMP space ever used

Hello, I would like to ask how to check the maximum space ever used for TEMP. I want to know it because I need to resize the TEMP and I want to know how small it can be.
As I can see from a documentation http://docs.oracle.com/cd/B14117_01/server.101/b10755/dynviews_2095.htm
max_size is max number of extens ever used in a segment
I could multiply max_size by extent_size and it would give me the max size of temp ever used
SQL> select segment_file, extent_size, max_size from v$sort_segment;
SEGMENT_FILE EXTENT_SIZE MAX_SIZE
0 128 23625
0 128 753
Is that correct ?
Edited by: Przemek P on Oct 2, 2012 2:19 AM

such dynamic performance views contain information since last instance startup, so this is not the ever used maximum
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Temp Space Issue

Hi there folks.
I've been using this forum as a reference point for the last couple of months but this is the first time I've had to post anything because I happen to have a pickle of an issue. In fact, it's that beefy, even my company's development team is stumped... Yeah.
So, a quick bit of background. The current client I'm working for is a Government agency related to Health & Public Services. The database we use works as a go-between with Siebel CAM and Business Objects. As the two don't naturally speak to each other, occasionally we get inevitible data incosistencies. We had an Informatica CDC issue a little while ago which left a lot of stale data, primarily relating to tasks which should have been closed or naturally expired. To clear up the backlog and return consistency to the DB, we've been working on updating a workflow which will refresh the tasks across the entire DB and bring everything in line.
Now, when the DB was designed, Task_Refresh was created and worked when tested as the DB was getting loaded with data. The problem is, when it was tested initially, there was only a few hundred thousand records to filter through. Now that the DB is in full swing, there's 22 million records and we're encountering issues. Essentially when we run the workflow in Informatica, it gets as far as the Source Qualifier and fails, having chewed through the available 16gb of temp space in the space of an hour.
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SELECT
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In troubleshooting, we found if we remove the left outer joins in the WHERE clause, then the query will return data, but not the right amount of data. Basically, PARENT_TABLE is just too massive for the temp space we have available. We can't increase the temp space and we can't get rid of the joins because that changes the functionality significantly. We have also tried restructuring the query by filtering on the dates first but that doesn't help, though I suspect that the order of the WHERE clause is being ignored by Oracle due to it's own performance related decisions. I have tried restructuring the query into 5 smaller queries and using Unions to tie it all together at the end, but still nothing.
We have even tried setting the date and time for an hour's worth of entries and that was still too big.
I'm stuck in a catch 22 here because we need to get this working, but the client is adamant that we should not be changing the functionailty. Is there any possible solution any of you can see for this?
Thank you in advance for any help you can offer on this.
(also, we are providiing support for the applications the database uses [CAM, BO], so we don't actually run this db per se, the client does. We've asked them to increase the temp space and they wont.
The error when we run the workflow is: ORA-01652: unable to extend temp segment by 128 in tablespace BATCH_TEMP)

938041 wrote:
I have tried restructuring the query into 5 smaller queries and using Unions to tie it all together at the end, but still nothing.
Technilcally you should be able to rewrite this query as a UNION ALL of 4 separate parts, providing you remember to include a predicate in the 2nd, 3rd and 4th query blocks that eliminate rows that have already been reported by the earlier query blocks.
Each part will be driven by one of the four range based predicates you have - and for the three parts that drive off child tables the join to the parent should NOT be an outer join.
Effectively you are trying to transform the query manually using the CONCATENATION operator. It's possibly (but I suspect very unlikely) that the optimizer will do this for you if you add the hint /*+ use_concat */ to the query you currently have.
Regards
Jonathan Lewis

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Consuming too much temp space

Dear All
A technical colleague of mine is executing a procedure which selects data from two databases and inserts it into the third one. The procedure is not new and he has been executing the same since a year now.However in past two weeks the procedure is either consuming too much amount of time ( 3-4 hours as against 10-12 mins ) or it fails as it utilises more amount of temp space on the database on which insertions are made. In the temporary tablespace i added about 10gb more but it is still not suffice for the procedure to execute successfully.The sga for the database onto which insertion is done is 2560M and pga for the same is 2G.
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Oracle.sql.BLOB.freeTemporary() is not freeing TEMP space in the database

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We are using oracle.sql.BLOB to store some file information into the database.
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blob.freeTemporary(); // this should have release the space from the database.
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Edited by: user10728663 on Oct 11, 2011 5:33 AM

Thanks a lot for the information.
Memory is fine. And I am able to reproduce this within the scope of a simple example as well.
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Need Information ..Related to temp Space

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