Delete temporary tables

Hi all, we are working with an Oracle Schema as staging area. Basically, what we want is to store all the intermediate transformation in temporary tables (stored in this Oracle staging area). These temporary tables are used as source datastores in other interfaces
Our question is about the delete of this tables. Once we have stored the final data in an Oracle DB, we want these temporary tables to be deleted. Do we have to do it through a sql Delete command embedded in a ODI Procedure?
We thought that as they were temporary they could be automatically deleted once the package is run.
We suppose that if we use Sunopsis Memory Engine and we have the implementation below, the temporary tables will be deleted when the package finishes:
Package Test
Interface 1: do some joins and filters and stores data in TEMP_1
Interface 2: do some joins and filters using TEMP_1 and stores data in TEMP_2
Interface 3: do some joins and filters using TEMP_2 and stores final data in TABLE A
Option A: using Oracle physical schema as Staging area
Option B: using Sunopsis Memory Engine as Staging area
To wrap up, do we have to delete TEMP_1 and TEMP_2 if we use Option A?
Another thing, which are the key factors to decide whether to use Sunopsis Memory Engine or Oracle DB (for instance) as Staging Area?
Thanks ins advance

Hi-
Staging area can be decided based on where you are loading the data. In your scenario the final data is to be loaded into Oracle DB, so the staging area should be option A.
Add drop table statement to delete TEMP_1 and TEMP_2 tables in your Interface3 KM step.
Hope this will helpful for you.
Thanks,
Saravanan Rajavel

Similar Messages

Delete temporary tables from namespace /BI0/0W - Failed to delete BPC Dim

Hi guys,
we have a problem while trying to delete a BPC Dimension which is no more used in any Application.
Dimension deletion fails because BW InfoObject deletion fails. From SLG1 we see there are some reference still in use.
Data Element /B28/OIJ2D30F1 is used in a couple of tables (/BI0/0W00000231 and /BI0/0W00000233).
These tables seems to be "where used list" tables.
We found an OSS Note [1042921|https://service.sap.com/sap/support/notes/1042921] related to DB6.
But it is not suitable: we are on ORACLE.
Anyway it says:
you may have to delete temporary tables from namespace /BI0/0W*, which also use the data element
These are exactly our symptoms
Does anyboy of you know how to delete this tables in /BI0/0W namespace?
Package is blank
SE11 -> Delete requires to register the object (created by BPC_ADMIN)
Thanks in advance
GFV

in the table ddd02l you can see the temporary table..
TCode db02, you can ask your basis team to delete temp table...you can see it 'under missing table and indexe'

How can I implement the equivilent of a temporary table with "on commit delete rows"?

hi,
I have triggers on several tables. During a transaction, I need to gather information from all of them, and once one of the triggers has all the information, it creates some data. I Can't rely on the order of the triggers.
In Oracle and DB2, I'm using temporary tables with "ON COMMIT DELETE ROWS" to gather the information - They fit perfectly to the situation since I don't want any information to be passed between different transactions.
In SQL Server, there are local temporary tables and global. Local temp tables don't work for me since apparently they get deleted at the end of the trigger. Global tables keep the data between transactions.
I could use global tables and add some field that identifies the transaction, and in each access to these tables join by this field, but didn't find how to get some unique identifier for the transaction. @@SPID is the session, and sys.dm_tran_current_transaction
is not accessible by the user I'm supposed to work with.
Also with global tables, I can't just wipe data when "operation is done" since at the triggers level I cannot identify when the operation was done, transaction was committed and no other triggers are expected to fire.
Any idea which construct I could use to acheive the above - passing information between different triggers in the same transaction, while keeping the data visible to the current transaction?
(I saw similar questions but didn't see an adequate answer, sorry if posting something that was already asked).
Thanks!

This is the scenario: If changes (CRUD) happen to both TableA and TableB, then log some info to TableC. Logic looks something like this:
Create Trigger TableA_C After Insert on TableA {
If info in temp tables available from TableB
        Write info to TableC
   else
       Write to temp tables info from TableA
Create Trigger TableB_C After Insert on TableB {
If info in temp tables available from TableA
        Write info to TableC
   else
       Write to temp tables info from TableB
So each trigger needs info from the other table, and once everything is available, info to TableC is written. Info is only from the current transaction.
Order of the triggers is not defined. Also there's no gurantee that both triggers would fire - changes can happen only to TableA / B and in that case I don't want to write anything to TableC.
The part that gets and sets info to temp table is implemented as temp tables with "on commit delete rows" in DB2 / Oracle.
What do you think? As I've mentioned, I could use global temp tables with a field that would identify the transaction, but didn't find something like that in SQL Server. And, the lifespan of local temp tables is too short.

Performance slow on DELETE command on global temporary table!

Hi,
I have a delete on a global temporary table that is taking long time!.
Anyone have a clue about how to improve delete command's against global temporary table??
Tks,
Paulo Portugal

Same problem here!
<QUOTE>
SELECT DISTINCT PDT_CHILD.SUP_ID, PDT_CHILD.SUB_ID,
PDT_CHILD.SUB_LEAF_FLAG_ID
FROM
PJI_FP_AGGR_RBS_T PDT_CHILD WHERE 1=1 AND PDT_CHILD.SUP_ID = :B2 AND
PDT_CHILD.SUP_ID <> PDT_CHILD.SUB_ID AND PDT_CHILD.WORKER_ID = :B1
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 88561 20.71 20.23 0 0 0 0
Fetch 90269 926.19 906.80 45 45164134 0 176545
total 178831 946.91 927.03 45 45164134 0 176545
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 173 (APPS) (recursive depth: 1)
Rows Execution Plan
0 SELECT STATEMENT MODE: ALL_ROWS
0 HASH (UNIQUE)
0 TABLE ACCESS (FULL) OF 'PJI_FP_AGGR_RBS_T' (TABLE (TEMP))
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
latch: row cache objects 1 0.00 0.00
direct path write temp 3 0.00 0.00
direct path read temp 3 0.00 0.00
</QUOTE>
The fetch is too high for TEMP table... Any help would be much appreciated!
Note: Please teach me on how we can format the above in my future posts in OTN forums.
===

Global Temporary Table not deleting Rows

why is my Global temp table not deleting the rows after commit see below,
CREATE GLOBAL TEMPORARY T_CHG
TBE VARCHAR2(7),
ABC VARCHAR2(8),
EFDA VARCHAR2(6),
ABD VARCHAR2(9),
A_ID VARCHAR2(128),
C_DATE,
ON COMMIT DELETE ROWS;

Quite a few syntax issues with your create statement. It would have helped if you had posted a SQL*Plus session showing your results. Here is mine which works just fine:
sql>create global temporary table t_chg
2 (
3 tbe varchar2(7),
4 abc varchar2(8),
5 efda varchar2(6),
6 abd varchar2(9),
7 a_id varchar2(128),
8 c_date date
9 )
10 on commit delete rows;
Table created.
sql>insert into t_chg values ('1', '2', '3', '4', '5', sysdate);
1 row created.
sql>select count(*) from t_chg;
COUNT(*)
1
1 row selected.
sql>commit;
Commit complete.
sql>select count(*) from t_chg;
COUNT(*)
0
1 row selected.

Datas deletion from Global Temporary table when clear command is given

Dear All,
How to Delete datas from global temporary Table when clear command is given in forms
Suggest me syntax..
Pls help..
Regards,
Gokul.B

http://psoug.org/reference/gtt.html
Francois

Create global temporary table in delete trigger

Hi to all, I am triyng to create a global temporary table in trigger so i can hold all the deleted rows and do some stuff after the statement which uses the table that fires the trigger.
In this way I am trying to avod mutating table error. but the following trigger gives error.
create or replace
TRIGGER TD_EKSINAVLAR
FOR DELETE ON DERSSECIMI_EKSINAVLAR
COMPOUND TRIGGER
BEFORE STATEMENT IS
BEGIN
CREATE GLOBAL TEMPORARY TABLE DELETED_ROWS
AS ( SELECT * FROM DERSSECIMI_EKSINAVLAR WHERE 1 = 2 )
ON COMMIT DELETE ROWS;
END BEFORE STATEMENT;
BEFORE EACH ROW IS
BEGIN
NULL;
END BEFORE EACH ROW;
AFTER EACH ROW IS
BEGIN
NULL;
END AFTER EACH ROW;
AFTER STATEMENT IS
BEGIN
NULL;
END AFTER STATEMENT;
END TD_EKSINAVLAR;
the error is
Error(12,5): PLS-00103: Encountered the symbol "CREATE" when expecting one of the following: ( begin case declare exit for goto if loop mod null pragma raise return select update while with <an identifier> <a double-quoted delimited-identifier> <a bind variable> << continue close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe purge
Please help me about the situation.
Thanks in advance.
Gokhan

Karthick you are absolutly right
Our main process is to migrate sql server 2000 database to oracle 11g and I am stuck with the triggers that reference to table that fires the trigger itself.
Can you help me about how i can overcome mutating table errors using compund triggers? Espacially for the situation that one statement tries to update or delete multiple rows on a table.
You can understand my logic from the above code. I want to hold all the affected rows in a table and in after statement body using a cursor on that table I want to do required changes on the table. How can I do that or how should I do ?
regards.

How create temporary table from list of values

Can you anybody advise me how can I create temporary table from list of values? I have list of values and need create temporary table for next use with command JOIN etc.
Thank you for help

NO, you can not create temporary table in oracle on the fly ( Like #Tabels in SQl Server or Sybase ) , you will have to use the GTT i.e Global Temporary Tables
check the following link GTT :
to flush the tables after commit
CREATE GLOBAL TEMPORARY TABLE my_temp_table (
column1 NUMBER,
column2 NUMBER
) ON COMMIT DELETE ROWS;In contrast, the ON COMMIT PRESERVE ROWS clause indicates that rows should be preserved until the end of the session.
so to keep rows in Table after commit
CREATE GLOBAL TEMPORARY TABLE my_temp_table (
column1 NUMBER,
column2 NUMBER
) ON COMMIT PRESERVE ROWS;

Life time of data in a Global Temporary Table.

Dear Friends,
I have a global temporary table in which I insert some values via a backend package, when forms start up and accessing it via the same package when user performs some changes in it - storing the value and during exit saving it in the master table. My problem is the data is not accessible while processing. I'm using Oracle9i Enterprise Edition Release 9.2.0.1.0 database and Forms [32 Bit] Version 6.0.8.8.0. I also give you the script in using which I created the temporary table.
CREATE GLOBAL TEMPORARY TABLE GTT_PRA
A1 VARCHAR2(10 BYTE) NOT NULL,
A2 VARCHAR2(15 BYTE) NOT NULL,
A3 VARCHAR2(10 BYTE) NOT NULL
ON COMMIT DELETE ROWS;
Why is that so? Please help me.
With Regards,
Senthil .A. Perumal.

Dear Arun,
Thank you for your script. But I'm accessing a large table, so for each and every process, the table get populated and grows very large giving some space problem, that is why I'm deleting rows when commiting. I would appreciate your help.
Dear Yogesh,
From the same forms I'm calling the backend package - will that be a different session. Once I'm calling to populate the table and next time I'm calling to store the user modified data and finally calling to store the data to master table. I think all are in the same sessions. Please reply me.
Thank you dear friends fr your immediate response. I would really appreciate it.
Regards,
Senthil .A. Perumal.

Is there a way to create "temporary" tables in SAP database?

Hello,
Is there a way to create temporary tables in ABAP?
Here is our scenario:
1. Invoke a custom RFC that creates a temporary table and returns the name of the table.
2. Invoke another custom RFC and pass this table name as parameter. This RFC internally does some INNER JOIN with the temporary table.
3. Invoke the third RFC to delete the temporary table.
Note that the name of the table cannot be static. We have many users using our application simultaneously and connecting to the SAP server.
I would appreciate it if you could point me in the right direction.
Thank you in advance for your help.
Peter

I just ran into a similar issue. While only calling the select statement 2 times, each time had so many entries in the 'for all entries' list, that the compiler converted this into about 700 calls to the select. Now since the select joined three real tables on the database, the trace shows this one select as being the slowest item in this application.
I think that happened because 'for all entries' gets converted to an 'IN' clause, and then the total number of characters in any SQL statement has an upper limit. So the compiler must make the select statement over and over until it covers all entries in the 'for all entries' list. Is that correct?
Since every database I ever saw has the concept of db temporary tables, I have used db temp tables many times for this sort of thing.
The ABAP compiler could determine that more than one IN statement will be need, then use an alternate: write all the FOR ALL ENTRIES to a db temp table, then join on the db temp table, then drop db temp table. Since the compiler does this sort of thing, no application code needs change to get the speed boost.

ORA-00955 reports when I try to "create global temporary table" in windows

Hi,
When I try to run the sql in my oracle 9i server which is installed in a windows2000 machine,
Create global temporary table test ...;
For the first time, I can create table successfully.
But I cannot access this table any more:
drop table test;
desc test;
select * from test;
In addition, if I try to create the table again, I got the error:
ORA-00955: name is already used by an existing object
While the same table can be created and dropped in another oracle9i server which is installed in Solaris 9 machine.
So I suspect that this sould be a bug of window oracle server.
Is there anyone who can confirm this?
Or who can tell me how to report this bug to oracle?
Thanks in advance.
Please also refer the message at:
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:1046974576560
If you search the text: "create global temporary table sess_event", you can see for the first time, the table is created successfully.
But the ORA-00955 reports when the author try to create table for the second time.
This problem is exactly the same as my problem.
I have also made a search both in Google and in Oracle website and I cannot find any solution of it.

Read Metalink Note:68098.1 Subject: Overview of Temporary Tables
How did you difine the temporary tables? on commit delete rows are reserv rows?
http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96590/adg03sch.htm#7794
Jaffar
Message was edited by:
The Human Fly

How can i create a Global Temporary Table inside a Stored Procedure....

Hi...
I need to create a Global Temporary Table inside a Stored
Procedure....
I have no idea how to do that....
Please....if u can send me a sample, send to me....
Thanks a lot

To create a global temporary table inside a stored procedure,
the minimal syntax would be:
CREATE OR REPLACE PROCEDURE procedure_name
AS
BEGIN
EXECUTE IMMEDIATE 'CREATE GLOBAL TEMPORARY TABLE table_name'
|| '(column_name NUMBER)';
END procedure_name;
As Todd stated, it would probably be better to create the global
temporary table outside of the procedure:
SQL> CREATE GLOBAL TEMPORARY TABLE table_name
2 (column_name NUMBER);
Table created.
You can also specify things like ON COMMIT PRESERVE ROWS or ON
COMMIT DELETE ROWS.
It may be that there is something else, like a PL/SQL table of
records or a cursor, that would suit your needs better. It is
difficult to guess without knowing what you want to do with it.

How to use Temporary Table in PL-SQL

In MySQL there is no Temporary table concept.
So for intermediate calculation I have created a table as below
create table SequenceTempTable
SessionId VARCHAR(50),
Sequence VARCHAR(500),
CreatedDate DATE
) ENGINE=MEMORY;
Whenever I invoke a SP, I load the data into SequenceTempTable using Session Id as below
CREATE PROCEDURE `GetSequence`(
IN Start_Date VARCHAR(25),
IN End_Date VARCHAR(25)
BEGIN
SELECT UUID() INTO v_SessionId;
INSERT INTO SequenceTempTable values (v_SessionId,'1,2,5,3',now());
required code
DELETE FROM SequenceTempTable WHERE SessionId = v_SessionId;
COMMIT;
END;
i.e. I have created a table as temporary table (created once),
and load the data using Session Id and once session specific intermediate computation done,
I deleted the session specific data.
Could you give me examples of How to use Temporary table in PL-SQL code with respect to my above example.
Because I have gone through creating Temporary table but I stuck with use in PL-SQL. I mean to say Is there any need of creating table in advance before invoking SP.
And one more thing as in MySQL temp table I created which is using MEMORY engine i.e. this table will always be in MEMORY so there is no need of writing data on disk.
Regards
Sanjeev

Hi Sanjeev
Read about GTT here
http://www.oracle-base.com/articles/8i/TemporaryTables.php
GTT always contains just session specific data. \
In case you want to use the GTT in the same session again you can use option
ON COMMIT PRESERVE ROWS;
Or if it is used just once in the session use can use
ON COMMIT DELETE ROWS;
Do remember that for GTT the data of one session can not be accessed in other session.
Also you can go away with Delete from GTT if not used again in same session.
Regards
Arun

Doubt with Global Temporary table

hi,
i have created a global temporary table with ON COMMIT DELETE ROWS option. in my Function in a loop i m inserting values into this Table, after that loop closes and then i m selecting some other values from DB. and in the last i am returning a ref cursor which is selecting values from temporary table i hav created.
now the thing is i m not getting any values in the cursor.
later I have created the table with ON COMMIT PRESERVE ROWS option, in this case cursor returning values,
can anyone explain me the functionality, as per my knowledge global temporary table values are session specific so why i m not getting the values in the 1st case when i used ON COMMIT DELETE ROWS (same session).
Thanks
Piyush

Ok, here's a simple example, like we'd like to see from you not working....
First create a GTT with ON COMMIT DELETE ROWS...
SQL> ed
Wrote file afiedt.buf
1* create global temporary table mytable (x number) on commit delete rows
SQL> /
Table created.Now a simple function that populates the GTT and returns a ref cursor to the data without doing any commits (hence the data should be there!)
SQL> ed
Wrote file afiedt.buf
1 create or replace function pop_table return sys_refcursor is
2    v_rc sys_refcursor;
3 begin
4    insert into mytable
5    select rownum from dual connect by rownum <= 10;
6    OPEN v_rc FOR SELECT x FROM mytable;
7    RETURN v_rc;
8* end;
SQL> /
Function created.So now we call the function and get a reference to our ref cursor...
SQL> var v_a refcursor;
SQL> exec :v_a := pop_table();
PL/SQL procedure successfully completed.So, in principle, because no commits have been issued the ref cursor should return data...
SQL> print v_a;
         X
         1
         2
         3
         4
         5
         6
         7
         8
         9
        10
10 rows selected.... which it does.
Now, what happens if we do that again...
SQL> commit;
Commit complete.
SQL> exec :v_a := pop_table();
PL/SQL procedure successfully completed.... but this time we commit before retrieving the data...
SQL> commit;
Commit complete.
SQL> print v_a;
ERROR:
ORA-00600: internal error code, arguments: [kcbz_check_objd_typ_1], [0], [0], [1], [], [], [], []
no rows selected
SQL>Oracle has (correctly) lost reference to the data because of the commit.
So show us what yours is doing.

What to fill in "temp table scope" for global temporary tables?

Hi,
I'm using Data Modeler 4.0.1.836 and whatever I put in the "temp table scope" box for a global temporary table doesn't seem to affect the DDL script regarding the ON COMMIT PRESERVE/DELETE ROWS option. The script always shows ON COMMIT PRESERVE ROWS no matter what.
Yet, some of my temporary tables must be created as ON COMMIT DELETE ROWS.
The Data Modeler help says the following about this :
Temp Table Scope:
For a table classified as Temporary, you can specify a scope, such as Session or Dimension.
Not sure what "Dimension" has to do with the scope here, but it doesn't make any difference.
I tried putting "Session", "Dimension", "Transaction", but no luck. So what's the text to put for the script to generate ON COMMIT DELETE ROWS?
Thanks

Hi,
The Temporary Table Scope property (on the Classification Types page of the Table Properties dialog) is purely documentary.
To set ON COMMIT DELETE ROWS you should expand the Browser node for the Relational Model and look for the node for the relevant Oracle Physical Model. If you expand this you will find an entry there for your Table. Double-click on this to get the Physical Model properties dialog for your table, and you will find a "Temporary" property which has options YES (Preserve Rows), YES (Delete Rows) or NO.
David

Delete temporary tables

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