active sessions for the global temporary table

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• How can I write the trigger for the global temporary Table

  Hi Grus,
  How can I write the trigger for the global temporary Table.
  
  I created the TWG with trigger using the script below.
  
  
  CREATE A GLOBAL_TEMP GLOBAL TEMPORARY TABLE
  (
  EMP_C_NAME VARCHAR2 (20 BYTE)
  )
  ON COMMIT PRESERVE ROWS;
  
  
  CREATE OR REPLACE TRIGGER TRI_GLOBAL_TEMP
  BEFORE DELETE, UPDATE OR INSERT
  ON GLOBAL_TEMP
  REFERRING AGAIN AS NINE OLD AND OLD
  FOR EACH LINE
  BEGIN
  INSERT INTO VALUES EMPNAME (: OLD.) EMP_C_NAME);
  END;
  /
  
  
  trigger was created successfully, but her would not insert EMPNAME Table...
  
  Please guide if mistaken or not? If not wanting to give a correct syntax with example
  
  
  Thanks in advance,
  Arun M M

  BEGIN
  INSERT INTO EMPNAME VALUES (:OLD.EMP_C_NAME);
  END;
  

  you are referencing old value in insert stmt.
  
  BEGIN
  INSERT INTO EMPNAME VALUES (:new.EMP_C_NAME);
  END;
  

  then run your app, it works very well...

  CREATE GLOBAL TEMPORARY TABLE GLOBAL_TEMP
  (
  EMP_C_NAME VARCHAR2(20 BYTE)
  )
  ON COMMIT PRESERVE ROWS;
  
  CREATE OR REPLACE TRIGGER TRI_GLOBAL_TEMP
  BEFORE DELETE OR UPDATE OR INSERT
  ON GLOBAL_TEMP
  REFERENCING NEW AS NEW OLD AS OLD
  FOR EACH ROW
  BEGIN
  dbms_output.put_line(:OLD.EMP_C_NAME||'yahoo');
  INSERT INTO EMPNAME VALUES (:new.EMP_C_NAME);
  dbms_output.put_line(:OLD.EMP_C_NAME);
  END;
  /
  
  create table EMPNAME as select * from GLOBAL_TEMP where 1=2
  
  insert into GLOBAL_TEMP values('fgfdgd');
  commit;
  select * from GLOBAL_TEMP;
  select * from EMPNAME;
  
  output:
  1 rows inserted
  commit succeeded.
  EMP_C_NAME
  --------------------
  fgfdgd               
  
  1 rows selected
  
  EMP_C_NAME
  --------------------
  fgfdgd               
  
  1 rows selected
  

  He got Arun

  Published by: OraclePLSQL on December 28, 2010 18:07

• 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).

• 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

• Small request help on the use of the global temporary table - some doubts

  
  Hi all

  Few days back according to a condition, I used a TWG (on the ranks of commit preserve).

  I created a trigger (before the insertion of line level) on GTT that calls a procedure (pragma autonomous transaction declared in the procedure).

  Procedure inserts data into two tables and I have a validation final (after the two insertion of data in tables) in the procedure.

  I tested by inserting the number of lines in TWG and found that the two tables are correctly supply procedure called by trigger.

  Which means that my works absolutely perfect functionality. (performance is also good)

  Now, my question is: since in the production source ETL tool will load this TWG.

  ETL will use this table in different processes simultaneously.

  Suppose that a single session ETL populates this table, and at the same time in parallel another session fills this table with different data. is there a lock on this TWG?

  Would the TWG is blocking other lines to add at any time?

  Is it possible that data may disappear without completing the entire process prematurely TWG?

  PS the feature I developed is the generic exception feature. This works for all valid tables for the database. For most of the tables will be filled with ETL, that's why I had these doubts in my mind.

  I apologize, if these seems like childish doubts.

  Thank you very much

  Arpit Agrawal

  Each line I'll get my GTT and follow all the features [trigger procedure &], will be considered as a session until the validation, right?

  This is not correct, a session is considered between the opening of session (session is created) and close the session (session is closed) of the database.

  If I use, validation TWG deletions here, how would he had differed on commit preserve as when my feature is completed, I don't want to keep more data.

  If on commit delete has been used here, it wouldn't make a difference in your case since you make is ENGAGING in some AUTONOMOUS OPERATIONS.

  In both cases, commit delete and commit preserve, you don't have to worry about the data inside the TWG because it will be empty onece you logoff (session ends).

  However, you can perform a delete operation in your session if you do not want to keep the data up to the end of the session.

• 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

• What is the syntax for creating a global temporary table using a select query

  HII
  I create a global temporary table using a select query... How to speak of "on commit preserve rows ' who?
  
  
  create a table temporary global t1 select * from trn_ordbase on the lines of commit preserve;
  
  but this is an invalid syntax, then how to talk on commit preserve rows in this? If I don't mention, by default its recital on the validation of deleted rows.
  
  Please help me on this problem.

  create global temporary table t1 on commit preserve rows
    2  as select * from dual;
  
  Table created.
  
  TUBBY_TUBBZ?
  

• 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.

• Global temporary table Vs Table permanently to manipulate the transaction data

  Hi all
  
  Version of database - 10.2.0.4
  
  We need handle transactions, data in a table and put in an intermediate table (ie): to replicate the data in the tables of a schema of staging of the tables in the schema. Get info on transactions and handling.
  Can you please indicate which one of the below is the best option.
  
  Option 1:
  Create a global temporary table, each running process.
  
  Option 2:
  Create a table permanently and delete lines at the beginning of the process.
  
  Job expects every 5 minutes
  
  Thank you and best regards,
  Rakesh

  If data are transient and must be written to the disk (I'm not sure I follow your explanation for why written data on the disk are necessary - you have to touch table large transaction each time to fill the intermediate table) using a global temporary table. At least, you'll reduce the cost of writing the data to disk by generating less recovery.

  But ideally, you would not write the data on the drive at all and would be able to do it in SQL.

  Justin

• 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.

• How to insert into a GLOBAL TEMPORARY TABLE and get the data from it?

  The requrement is
  Split the string ENTRY point on the base and store it in a Collection. And the values of the collection will be stored in a global temporary table. Then, I'm updating some other table based on the data from the temporary table.
  
  There is in fact no error message. But there is no data in the temporary table and also no change in the update statement
  
  First of all, I'm creatiing a global temporary table only once outside the procedure.
  
  CREATE GLOBAL TEMPORARY table GLt (data_element number)
  
  
  create or replace procedure test_proc (p_in_string VARCHAR2) is
  i the number: = 0;
  number of POS: = 0;
  CLOB lv_str: = p_in_string;
  p_delim VARCHAR2 (1): = ', ';
  
  TYPE t_array IS TABLE OF VARCHAR2 (20) INDEX directory.
  t_array channels;
  
  BEGIN
  
  -cutting of string input and store in the strings (i) collection
  
  POS: = instr (lv_str, p_delim, 1, 1);
  WHILE (pos! = 0) LOOP
  i: = i + 1;
  Strings (i): = substr(lv_str,1,pos-1);
  lv_str: = substr (lv_str, pos + 1, length (lv_str));
  POS: = instr (lv_str, p_delim, 1, 1);
  IF pos = 0 THEN
  Strings (i + 1): = lv_str;
  END IF;
  END LOOP;
  
  run immediately "drop table TWG;
  run immediately ' CREATE GLOBAL TEMPORARY table (data_element number) TWG on commit preserve rows ";
  
  FORALL i in strings.first... Strings.Last
  INSERT INTO VALUES TWG (strings (i));
  commit;
  
  Update first_tbl set PIN is "XXX" where first_col in (select data_element from TWG);.
  commit;
  
  END test_proc;
  
  Published by: cedric b on January 25, 2013 12:59

  Remove the two execute immediate line. They are wrong.

  And then use the table in your code that you created at the beginning. The name is GLT.
  And delete the first commit. This validation would empty the temporary table of GLT.

  You get an error? Or it does not work as expected?

  Also, show how you call the procedure.

  Published by: Sven w. January 25, 2013 14:45

• 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.

• 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,.

• 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

• 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