GTT - Global temporary Table - problem with Apex

Hello

I'm having a problem using TWG with Apex. The data generated by a session can be selected by another user in another session. How can this happen?

Thank you

Márcio Goncalez

Sounds like the connection pooling. You might want to try to change your TWG flush on the end of session to flush the commit.

Tags: Database

Similar Questions

Global temporary Table problem in ADF
Hello

I have an application where I need to use a TWG (on the ranks of commit preserve) DB and try to insert data to TWG of screw ADF.
But the table does not store data even after the Commit command. [Even I tried with permament DB table, and it worked.]

Could someone help me find the problem with inserting data TWG.

Kind regards
Manju
It is not a good idea to use a global temporary Table in an ADF application. The problem is that all web applications are really stateless. ADF maintains the State of a session data backup or reload it when necessary. Regarding the database, ADF can disconnect a session from the database at any time and connect to another session. This means that you do not necessarily have a continuous database session, then the lines you wrote to a TWG may well gone with the following query. There are ways to tell ADF not to do, but they have a considerable performance drop.

Therefore, rethinking how you will save temporary information for the duration of a user session. You can do it in an object view ADF BC (VO) - interviewed by VO data carried session - if ADF needs to share a user session to load the data of another user (this is called "passivation") it will save these data. Then when ADF 'active' session, he'll find the saved data and reload it. Or you can use a permanent table with your name or session id - a little more complicated, but possible.

If you want to tell us a little bit your use case - you need your application to do so, we may have other alternatives.

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

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

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

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

Need help with a global temporary table
Can someone please help, the following line of code:

CREATE TEMPORARY TABLE global tbl_bulknodes_temp (obt_uuid VARCHAR2) ON COMMIT DELETE ROWS

Yeilds the following error running in SQL and PL/SQL

Error from the 1 in the command line:
CREATE TEMPORARY TABLE global tbl_bulknodes_temp (obt_uuid VARCHAR2) ON COMMIT DELETE ROWS
Error report:
SQL error: ORA-00906: lack of left parenthesis
Hello

You need the length of varchar2 column...
```
SQL> CREATE GLOBAL TEMPORARY TABLE tbl_bulknodes_temp ( obt_uuid VARCHAR2(30) ) ON COMMIT DELETE ROWS;

Table created

SQL> CREATE GLOBAL TEMPORARY TABLE tbl_bulknodes_temp2 ( obt_uuid VARCHAR2 ) ON COMMIT DELETE ROWS;

CREATE GLOBAL TEMPORARY TABLE tbl_bulknodes_temp2 ( obt_uuid VARCHAR2 ) ON COMMIT DELETE ROWS

ORA-00906: missing left parenthesis

SQL> 
```
Kind regards

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

active sessions for the global temporary table
Hello

Is there no view or the way to know how many active users evaluate a global temporary table?

Rgds,
Piyush
The following query should list the user accounts writing (with INSERT/UPDATE/DELETE) into the temporary table 'TWG' belonged to "O":
```
select s.username, l.sid
from v$lock l, v$session s
where l.id1 =
(select object_id from dba_objects where owner='O' and object_name='GTT')
and l.sid = s.sid;
```
The following query should list all user accounts by using the temporary table named "GTT" with SELECT/INSERT/UPDATE/DELETE statement:
```
select username
from v$session s, v$access a
where s.sid = a.sid
and object ='GTT';
```
Edited by: P. Forstmann on June 9, 2010 09:40

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).

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 tables

Hi, db 10g,
I created a global temporary table with this statement:
create a table temporary global items (item_id);
and tried to insert inside of Toad, and I got the message
1 row inserted,
but when I asked it, I got
no selected line?
I tried the script several times, and the result is the same?
Thank you

Hello

Hi Salem wrote:

It worked, I added this clause

ON COMMIT PRESERVE ROWS;

to create it, statement and it worked correctly, but are not this clause the default?

No, the default is ON COMMIT DELETE ROWS. I don't know why; ON COMMIT PRESERVE ROWS seems to be much more widely used.

trigger on the global temporary table

Hello
I have a global temporary table
CREATE GLOBAL TEMPORARY table to register)
no_registre NUMBER primary key,
date of create_time
) ON COMMIT DELETE ROWS.
I have to write a trigger on the table every time that the insertion is made.
create or replace trigger tri_register
before inserting the REGISTER
for each line
Start
: new create_Date: = sysdate;
end;
/
This trigger can work on this registry table?
Thank you

913578 wrote:

Sorry Karthik.

the thing is that I did not have privelleges to test, I send the code to some dba who makes deployment.

Sorry to hear that!

Please tell me... We can write triggers on GTT?

of course, you can!

SQL > create a global temporary table registry
() 2
no_registre 3 number primary key,
create_time date 4
5)
6 on the validation to delete lines;

Table created.

SQL > create or replace trigger register_trig before insert in the register for each line
2 start
3: new.create_time: = sysdate;
4 end;
5.

Trigger created.

SQL > insert into values of registry (no_registre) (1);

1 line of creation.

SQL > select * from registry;

NO_REGISTRE CREATE_TI
----------- ---------
1 8 JULY 13

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,.

on a global temporary table
forms_ddl ('truncate table storage reuse SUB_BF');

Insert / * + APPEND * / select into SUB_BF * from SUB_TEMP_BF;

Hi all

sub_bf is an ordinary table and sub_temp_bf is gtt (global temporary). and a report is complete based on table sub_bf. but when I use the delete instead of truncating PMT statement
then come reports, but when I use the reports truncated only shows all values.

I can't use delete statement because he is slow and my user simultaneously generate the report for sub_bf tables become lock. and longer reports crashes.

BR.

Sanjay
Hello
Truncate commit implied.
Therefore, do not use ON COMMIT clause when creating your TWG to the data in the temporary table persists for the duration of a session no transaction.

GTT - Global temporary Table - problem with Apex

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