global temporary table in oracle

HI all,
I want to know more about TWG in oracle, why we use it, cant why we use table bunch (we can truncate and we can use) as TWG, please help me

The data in a temporary table are private to the session that created and can be specific to the session or operations. If the data are deleted at the end of the transaction, the table must be defined as follows:

CREATE TEMPORARY table GLOBAL My_Temp_Table (NUMBER of Column1, Column2 NUMBER) ON COMMIT DELETE ROWS.

If on the other hand that data should be kept until the session ends, it should be defined as follows:

CREATE TEMPORARY TABLE global my_temp_table (NUMBER of Column1, Column2) ON COMMIT PRESERVE ROWS;

Various characteristics
1. If the TRUNCATE statement is issued against a temporary table, only the specific session data trucated. There is no impact on the data of the other sessions.
2. the data in temporary tables is automatically delete at the end of the session of the database, even if it ends abnormally.
3 indexes can be created on temporary tables. Content in the index and the scope of the index are the same as the database session.
4. the views can be created against temporary tables and combinations of temporary and permanent tables.
5 Tempoarary tables can have triggers associated with them.
6. export and import utilities can be used to transfer table definitions, but without data lines are treated.
7. There are a number of tables linked to temporary restrictions, but here are the specific version.

Tags: Database

Similar Questions

Global temporary Tables from Oracle and connection pooling

When grouping, connection ('maintain connections' in cfadmin) is enabled. Oracle Global Temporary tables is screwed up. Bleeding of a page of data request to another because CF is reusing the same Oracle session over and over again.
Is there a JDBC driver that will allow the use of global Temp Tables while having enabled connection pooling?
Other applications, such as Oracle Application Server servers, somehow allow the pooling and work together harmoniously TWG.

If your temporary tables created with the default setting of validation remove lines, the cftransaction tag will help you. Copy the following code:

insert into t_dan_test values (1)

Select * from t_dan_test

Select * from t_dan_test

a 1 1 x sheet of dumping and x 2 0 dumping.

Are global temporary tables, a standard feature of Oracle?

I apologize for introducing me to this community with what must seem like a very stupid question...
I am a software developer, working on a product that uses Oracle as its database, specifically Oracle 11 g Enterprise Edition. Recently, I solved a problem of performance by converting an ordinary table into a global temporary table. Before my boss allows me to put this change in the product, it wants to be sure that global temporary tables are a standard part of Oracle, not something that the customer must install separately or pay extra for. (This is the first time that we never used them in our product, so I think that most of the team are not familiar with them).
I know that Oracle has had global temporary tables since the last millennium, so if ever, they have been a feature of the premium, they are unlikely to be now, but the boss wants me to get independent confirmation of this.
Thank you.
Steve Pemberton

Here you can see "feature availability by Edition":

http://docs.Oracle.com/CD/E11882_01/license.112/e47877/editions.htm#DBLIC116

TWG tables is not even mentioned, which means that they do not belong to the functional components are paid separately.

One caveat - if you have an application that uses connection pooling, it is recommended to use ON COMMIT DELETE ROWS, not ON COMMIT PRESERVE ROWS

(or always use explicitly "DELETE gtt_table" at the beginning), because otherwise a user of the application can display the data TWG who has previously made a second user of the application.

Kind regards

Zlatko

PLS-00357 on a global temporary table

Oracle 11g R2

I am using a dynamic SQL statement to delete rows. The WHERE THERE EXIST uses a global temporary table and it gives me

PLS-00357: Table, view or reference sequence "TMPPRE_ARC" not allowed in this context

Any ideas of a work around?

create global temporary table tmppre_arc
  ( id number)
  ON COMMIT PRESERVE ROWS;


CREATE OR REPLACE PROCEDURE test_del
IS
   v_owner_tbl varchar2(61) := 'test_table'     ;
BEGIN   /* DELETE_SOURCE */
        EXECUTE IMMEDIATE
            'DELETE FROM ' || v_owner_tbl || ' v ' || chr(10) ||
            'WHERE EXISTS ( SELECT    null '       || chr(10) ||
            'FROM      ' || tmppre_arc || ' r '  || chr(10) ||
            'WHERE       r.id     = v.id )' ;
END test_del;
/
show errors


LIsNE/COL ERROR
-------- -----------------------------------------------------------------
5/9      PL/SQL: Statement ignored
8/29     PLS-00357: Table,View Or Sequence reference 'TMPPRE_ARC' not
allowed in this contenxt





         allowed in this context

This is false:

'FROM ' | tmppre_arc | ' r ' || Chr (10) |

Should be

"OF tmppre_arc r | Chr (10) |

SY.

What to fill in 'field of the temporary table' for global temporary tables?

Hello
I use the Data Modeler 4.0.1.836 and everything that I put in the box 'the scope of the table temp' for a global temporary table doesn't seem to affect the DDL script about the ON COMMIT PRESERVE/DELETE the LINES option. The script poster ON COMMIT PRESERVE ROWS always anything.
Yet, some of my temporary tables must be created as ON COMMIT DELETE ROWS.
Using the Data Modeler wrote about it:
Scope of the temporary Table:
For a class as a temporary table, you can specify a scope, such as the Dimension or the Session.
Not sure what 'Dimension' has to do with the scope here, but it makes no difference.
I tried to put 'Session', 'Dimension', 'Operation', but no luck. So what is the text for the script generate ON COMMIT DELETE ROWS?
Thank you

Hello

The temporary Scope of Table property (on page Types of Classification of the table properties dialog box) is purely documentary.

To set ON COMMIT DELETE ROWS you must expand the browser for the relational model and find the node for the relevant Oracle physical model. If you develop it you will find an entry there for your Table. Double-click on that to get the physical model properties dialog box for your table, and you will find a "Temporary" facility that has options (Preserve Rows), YES (Delete Rows) YES or no.

David

Global temporary table in PL/SQL with XML

Hello
I have the impression that it is something strange or maybe I'm missing something basic.
Step 1: Create a global Temp table that should not be specific transaction.
create a global temporary table Temp01
(
NUMBER OF TICKET_ID
, Varchar2 (10) of the REGION
NUMBER OF THE YEAR
, CO_ID VARCHAR2 (10)
) ON COMMIT DELETE ROWS.
Step 2:
My XML that goes as a parameter to a new function.
< TICKET >
< TICKET_ID > 38498051 < / TICKET_ID >
the USA < REGION > < / REGION >
< YEAR > 2014 < / YEAR >
XYZ123 < CO_ID > < / CO_ID >
< / TICKET >
Step 3: Create a Stand Alone function:
-drop function aagarwal.wr_creation;
create or replace FUNCTION XML_FUNC
(
ret_msg out varchar2,.
p_xmlval IN varchar2
)
RETURN varchar2
is
l_xmlval varchar2 (4000): = p_xmlval;
V_CO_ID VARCHAR2 (10);
V_CODE VARCHAR2 (10);
BEGIN
BEGIN
INSERT INTO Temp01
(
TICKET_ID,
REGION,
BLEACHED,
CO_ID
)
SELECT
EXTRACTVALUE (XmlType (p_xmlval), "/ TICKET/TICKET_ID ') ID,.
EXTRACTVALUE (XmlType (p_xmlval), "/ TICKET/REGION") REGION.
EXTRACTVALUE (XmlType (p_xmlval), "/ TICKET per YEAR"),.
EXTRACTVALUE (XmlType (p_xmlval), "/ TICKET/CO_ID ') CO_ID
FROM DUAL;
ret_msg: = 'SUCCESS';
-SELECT CO_ID IN V_CO_ID of aagarwal. TEMP_STAGE_WR;
-return ret_msg;
EXCEPTION
WHILE OTHERS THEN
ret_msg: = sqlerrm;
Return ret_msg;
END;
BEGIN
SELECT CO_ID INTO V_CO_ID FROM Temp01;
/ * MERGE IN the site is
With the HELP of aagarwal. TEMP01 T
WE (T.co_id = se.code AND se.type_nm = ' TYPE' and se.src_nm = T.region)
WHEN NOT MATCHED THEN
INSERT (ID, SRCNM, CODE, TYPENM)
VALUES (SHARED_SEQ. NEXTVAL, T.region, T.co_id, 'TYPE');
-commit; */
return ret_msg | "ACE" | v_co_id;
END;
END;
/
Fact - created function.
NOTE: MERGE statement is blocked and if the function was created in sweetness.
Step 4: Call the function
declare
l_out varchar2 (50);
l_outr varchar2 (50);
p_xml XMLTYPE.
Start
l_outr: = XML_FUNC (l_out, ' < TICKET >)
< TICKET_ID > 38498051 < / TICKET_ID >
the USA < REGION > < / REGION >
< YEAR > 2014 < / YEAR >
XYZ123 < CO_ID > < / CO_ID >
(< / TICKET > ');
dbms_output.put_line (l_outr);
end;
/

Step 5: Check the value being inserted into the temporary Table:

Select * from temp01;

So far so good.
THE PROBLEM:
Now I want to tweek the XML_FUNC function above by uncommenting MERGE statement, which brings me to an error that is not differentiable:
I.e. PL/SQL: ORA-00942: table or view does not exist in line on MERGE pointing to Temp01 statement.
NOTE: I tested this Merge statement explicitly (as long as the execution of Stand Alone and also by calling via anonymous block PLSQL) and its absolutely perfect work. And SITE table exist.
PS: I would be grateful, if there is a better way to write this code? I'm not a regular PLSQL developer and so badly can write the code of practice.
Kind regards
AAG.
Using 11.2.0.3:

Owner of all these three objects is DBA.

Are you sure?

After the release of:

Select object_name, object_type

of object

where object_name in ('TEMP01', 'SITE', 'XML_FUNC');

You must grant the explicit right to select on the table for the owner of the function if the owners are different.

This works as expected for me (user DEV has all 3 items):

Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.3.0

Logged in as dev

SQL >

SQL > create a global temporary table Temp01)

NUMBER OF TICKET_ID 2

3, Varchar2 (10) of the REGION

4, NUMBER OF THE YEAR

5, CO_ID VARCHAR2 (10)

6)

7. ON COMMIT DELETE ROWS.

Table created

SQL >

SQL > create table site)

Identification number 2

3, srcnm varchar2 (10)

4, code varchar2 (10)

5, typenm varchar2 (10)

6 );

Table created

SQL > create the sequence shared_seq;

Order of creation

SQL >

SQL >

SQL > create or replace FUNCTION XML_FUNC)

2 p_xmlval IN varchar2

3)

4 RETURN varchar2

5 is

6 l_xmlval xmltype: = xmltype (p_xmlval);

7. START

8

9 INSERT INTO Temp01

(10)

TICKET_ID 11,

REGION 12,

13 YEARS,

CO_ID 14

15)

16. SELECT ID EXTRACTVALUE(l_xmlval, '/TICKET/TICKET_ID'),

17 EXTRACTVALUE(l_xmlval, '/TICKET/REGION') REGION,

18 EXTRACTVALUE (l_xmlval, ' / TICKET per YEAR ') YEAR.

19 EXTRACTVALUE(l_xmlval, '/TICKET/CO_ID') CO_ID

20 FROM DUAL;

21

22. MERGE IN site

23. WITH THE HELP OF TEMP01 T

(24)

25 T.co_id = se.code

26 AND se.typenm = 'TYPE '.

27 and se.srcnm = T.region

28)

29 WHEN NOT MATCHED THEN

30 INSERT (ID, SRCNM, CODE, TYPENM)

31 VALUES (SHARED_SEQ. NEXTVAL, T.region, T.co_id, 'TYPE');

32

33 return "SUCCESS";

34

35 END;

36.

Feature created

SQL >

SQL >

SQL > set serveroutput on

SQL >

SQL >

SQL > declare

2

3 l_outr varchar2 (50);

4

5. start

6

7 l_outr: = XML_FUNC (')

8 38498051

9 USA

10 2014

11 XYZ123

12 ');

13

14 dbms_output.put_line (l_outr);

15

16 end;

17.

SUCCESS

PL/SQL procedure successfully completed

SQL > select * from site;

ID CODE TYPENM SRCNM

---------- ---------- ---------- ----------

TYPE 1 USA XYZ123

declare a global temporary table
Hello
can I use the declare global temporary table (...) ststement of pl/sql, I need a temporary table for the current session.

If not, what should be the alternative?

Thank you...

Published by: Amoeba on 23 August 2012 13:39

Published by: Amoeba on 23 August 2012 13:41
Hello

>
can I use declare global temporary table (...) as ststement of pl/sql, like I need a temporary table for the current session.

If not, what should be the alternative?

Thank you...
>
This query actually belongs to SQL and PL/SQL Forum. Please take care and post in the correct forum.

In any case...
CREATE TABLE TEMPORARY global is a DDL command. Once created TWGS will exist until he FELL. Try to create a TWG with the same name will fail. just like any table, view, etc. See http://docs.oracle.com/cd/B28359_01/server.111/b28310/tables003.htm#i1006400

a: you can create a TWG once and use/re-use it anywhere in your code.
(b) as it is a DDL you can not use in the DECLARE section. You can use BEGIN and EXCEPTION.

See you soon,.

problem of global temporary table in different environment

I have 2 environment
production of 1) development) 2.

developing oracle version is-
----------------------------------------

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0    Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

in prodcution
-----------------

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0    Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

We use two global temporary tables (tmp_transaction tmp_category_mv)(development and production).
Both are contains the same set of data. I compared the data set.all are the same.
but the return of different query defined in the development environment.

But instead of a global temporary table in the development, it returns the same result, defined as the production, I used a normal array.

Please suggest me what I do?

my query
===========

select /*+ parallel(t,4) */
            t.transaction_id,
            cr.cat_rule_id,
            cr.apply_seq,
            t.site_id,
            cr.site_id cat_rule_site_id
        from
            tmp_transaction t
                left outer
                join tmp_category_mv cr on
                        (cr.data_feed_code is null
                        or t.data_feed_code = cr.data_feed_code)
   and (cr.min_date is null or t.transaction_date > min_date)
   and (cr.max_date is null or t.transaction_date < max_date)
   and (cr.local_commodity_code is null or t.local_commodity_code like cr.local_commodity_code)
   and (t.local_supplier_code = cr.local_supplier_code)
   and (cr.local_commodity_name is null or t.local_commodity_name like cr.local_commodity_name)
   and (cr.invoice_description is null or t.invoice_description like cr.invoice_description)
   and (cr.cost_centre_name is null or t.cost_centre_name like cr.cost_centre_name)
   and (cr.purchase_order_description is null or t.purchase_order_description like cr.purchase_order_description)
   and (cr.purchase_order_line_desc is null or t.purchase_order_line_desc like cr.purchase_order_line_desc)
   and (cr.gl_code is null or t.gl_code like cr.gl_code)
   and (cr.gl_name is null or t.gl_name like cr.gl_name)
   and (cr.material_group_code is null or t.material_group_code like cr.material_group_code)
   and (cr.material_group_name is null or t.material_group_name like cr.material_group_name)
   and (cr.material_code is null or t.material_code like cr.material_code)
   and (cr.material_name is null or t.material_name like cr.material_name);

Published by: BluShadow on February 8, 2012 13:29
addition of {noformat}

{noformat} tags. Please read {message:id=9360002} and learn to do this yourself.

Hello

Could be

Bug 6193398: QUERY PARALLEL WITH an OUTER JOIN ON TEMPORARY DELIVERS INCORRECT RESULTS TABLE

Database version 10.2.0.2.0

Status 80 - development of Q / A

WORKAROUND SOLUTION:
- - - - - - - - - -
Use the series query or table normal and not temporary.

Concerning
Peter

EDIT: Status seems to be incorrect, in patch has been in 10.2.0.4

No MOS?

Published by: Peter on 8 February 2012 14:28

Edit and a global temporary table
Hi all

Can someone tell me why when I create a TWG and insert the data as the followijng, I get insert 14 ranks msg. But when I do a select statement of the sqlwork shop, sometimes I get the data sometimes that I don't have. my understanding is that these data are supposed to stay during my session logon then got cleaned up when I left the session.
I develop a screen in the apex and will use this temporary table for the user to perform editing work. Once Island edition done then I save the data in a static table. Is this possible? So far my every attempt to update that the temporary table always results in 0 rows updated in the temporary table and reversed to 0 lines. Can you help me?

CREATE A GLOBAL TEMPORARY TABLE 'EMP_SESSION '.
(SELECT "EMPNO" NUMBER NOT NULL,)
'ENAME' VARCHAR2 (10),
VARCHAR2 (9) "JOB."
NUMBER OF "MGR."
"HIREDATE" DATE,
NUMBER OF "SAL."
NUMBER OF THE "COMM"
NUMBER OF "DEPTNO".
) ON COMMIT PRESERVE ROWS
/

insert into emp_session (EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO)
Select * from EMP
--
Select * from emp_session
-Sometimes I 14 ranks, sometimes 0 rows

Thank you.

Tai
APEX does NOT support the use of TWG... Use rather a collection to manipulate your temporary data... : http://www.dba-oracle.com/t_easy_html_db_collection.htm

Thank you

Tony Miller
Webster, TX

What is the best (global temporary Table or tables of Type Object)
Dear all,

I'll try to refine some code and find that we have a large loop that goes to loop over 100000 times and for each record, it in turn for validation of controls in individual tables.

I intend to implement all of the functionality of controls using join conditions. I.e. to empty all the data into a global temporary table or tables oracle object type and apply the conditions of verification using join operations, so that I can avoid the unnecessary check for each record.

If I want to implement this, I want to know what is best. A global temporary table or the Oracle Tables nested.

Appreciate your response.

Thank you
MK.
If you mean a global temporary table vs a variable from PL/SQL grouping, then 100 + lines is a lot to store in session memory a GTT would be so a more scalable solution. It will give you more options to manipulate the data using SQL.

Note that a 'table of type object', or 'table object type' can mean a table of database (no PL/SQL) for example "CREATE TABLE MyTable mytype". However, I don't think you mean that.

APEX interactive report on a global temporary table
Hello
I tried to build an interactive report on a global temporary table (starry on commit), which is created with a cron every hour. Problem is that the sql to create the temporary table runs about 10 minutes, putting thus the sql directly in the page makes no sense.
When I create the report, he sees all the columns, but no data. I can query the good data from sqlplus or through sqldeveloper. I'm doing something wrong?

THX,
Dennis
Hello

How to fill collection?

Check APEX_COLLECTION procedures
CREATE_COLLECTION_FROM_QUERY_B
CREATE_COLLECTION_FROM_QUERYB2

http://download.Oracle.com/docs/CD/E17556_01/doc/apirefs.40/e15519/apex_collection.htm#CJAHBBGD

Kind regards
Jari

order of the lines of the global temporary table
I have a global temporary table "TMP_PAYMENT_ANNUITY" and I insert records in there with loop for each iteration of loop insert a row in the table.
Now, I'm back records inserted user with cursor in this way:
```
   open o_annuity_payments for 
      select * from TMP_PAYMENT_ANNUITY;
```
Can I be sure that the slider will have records in exactly the same order as inserted loop them?
Or do I also insert rownumber column of my table that I filled with the loop iteration variable, and I'll be back slider like this:
```
   open o_annuity_payments for 
      select * from TMP_PAYMENT_ANNUITY
       order by ROWNUMBER;
```
Currently, I have "ROWNUMBER"-column in the table, but maybe I should create then? ".
The question is about the order of the rows, how this order will be without "in order to" - clause?

Published by: CharlesRoos on June 2, 2010 03:03
CharlesRoos wrote:
>
What makes the solution of the temporary table better?
>

1. This approach/solution is easier to read for other developers. Ugly hierarchical query with the function LAG is difficult to read and edit.

I agree with you! It's one of the reasons when you should stop developing very sophisticated SQL statements. Even if the performance is slightly better.

2-hierarchical-feature in sql is always slow and friendly error.

I don't think that a hierarchical solution is necessary. but it may depend on your version of Oracle (think MODEL clause).

3. it is easy to implement the "temporary table solution." with complex sql construction will be time-consuming and bug-friendly and complex.
3. I'm not sure the question of perfomance, here I may be wrong, I test/compare.

...

CharlesRoos wrote:
1 can someone confirm that I don't need "ORDER byclause?

I never would implement it WITHOUT a prescription by cluase. Why depend on such a solution?
One of your strong points would improve maintainability. It is against this requirement.
Imagine this happening, for example, when another developer decided to move from a temporary to a normal table. Maybe by adding a field 'user '.
In such a scenario, you can find ways where the output is sorted not more properly.
I can't find Google evidence.

2. what happens if I order by as:
```
select * from TMP_PAYMENT_ANNUITY
ORDER BY ROWID;
```
This approach maybe gives me the order of the rows as they are in the table?
main problem is that you cannot test if it STILL works without order. But you will need to find not only one rare case that breaks it.

* In a multiuser environment, the table could put a few lines where another session comes to delete certain lines. This could influence the agenda.
* oracle could change something for the release of "like orders ' (I did they did already in the GROUP BY clause from 9i to 10g).

GeoRasters mosaicing with global temporary tables
Mosaicing function requires that all individual images (there is a picture in each record) be in their own table before can be mosaiced, that there is no way to predict that some of the images in a table should be used.

So, the best idea I've had so far is to use a global temporary table where the images I need can be selected and put in the temporary table - then mosaiced. It is important that the temporary table contain only the images necessary to a mosaic of data. However, I'll be at performs the operation of mosaic several times in a given session (perhaps even more 1 mosaic at the same time) and worry that there will be documents unrelated to the temporary table or former.

Does this mean that I have to do a new session every time I need a picture of the mosaic? It seems not very effective. Can I have just one session, but a 'new' table temp every time?

Thank you
HD
MH, creating an oracle georaster objects "VIEW", no matter where they are actually stored, would suit your needs. The mosaic georaster works on georaster views, which are treated as regular georaster tables.

Jeffrey

SELECT the data inserted into a global temporary Table in a stored proc
A stored procedure is run from Oracle SQL Developer to insert data into a global temporary table. A SQL (in Oracle SQL Developer) worksheet is open to run a SELECT query to retrieve the data from the temporary table overall which was populated in the stored procedure. No row is returned. I guess it's because the stored procedure and the SELECT statement executed in different sessions.

Is it possible to run the stored procedure in Oracle SQL Developer and then execute a select statement on the temporary table overall which was filled in the stored procedure by using the same connection so that the data can be extracted?

I use version 1.5.1 build HAND-5440 of Oracle SQL Developer.
In a worksheet, do something like

Start
insert_proc;
end;

Select * from my_temp_table;

Place the cursor on each statement in turn and Press f9 (where it all began... the end is a single statement.

find global temporary tables

Hi all
How to find global temporary tables in all_tables, is this possible?

What:
```
select * from all_tables where temporary = 'Y';
```

global temporary table in oracle

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