ODI CKM and LKM temporary tables

Similar Questions

• Change the names of temporary tables created BY CKm and LKM

  Hello
  
  I am new to ODI.
  I want to know if we can change the default name structure that is used by ODi to create temporary tables.
  I have$, C$, and E$ table.
  For example:-if I want to keep I have $1 for a single schema and I have $2 to another schema.
  
  Is there a way by which we can do that?
  
  Thank you
  Mahesh

  Just follow this guide to make unique session temporary tables:

  http://odiexperts.com/interface-parallel-execution-a-new-solution
  There will be no interference then.
  Kind regards
  Alastair

• Subquery factoring clause and the temporary table

  Is it possible (probably a hint) to specify the Oracle to create a temporary table in subquery factoring (with...) clause?
  
  So if I have a query

  with t1 as (select ...)
  select ...

  How can I do Oracle to generate a plan that creates a temporary table for t1 (and not using t1 as inline view)?

  Hello

  use the indicator to materialize:

  with t1 as (select /*+ materialize */ ...)
  select ...
  

  Herald tiomela
  http://htendam.WordPress.com

• CANCEL reading and overall-TWG temporary table

  Hello Expert!

  Based on an analysis made by my colleagues... He mentions on a compound of SQL to extract data only to leave a TWG and overturn readings! (Current_obj # ash captured as a event 0 and wait - db_file_sequential_read)

  The thought difficult to obtain a cancellation reason reading when extracting data from TWG!.

  On cancellation, cancellation would be needed!

  But as TWG specific Session, at any time in my session would read the latest copy for all operations. This reading must come from a buffer or disc (Temp).

  Why a reading of cancellation will be required?

  Can you please help me understand a scenario where cancel read for TWG is valid or unrealistic?

  Or conceptually missed something?

  Based on an analysis made by my colleagues... He mentions on a compound of SQL to extract data only to leave a TWG and overturn readings! (Current_obj # ash captured as a event 0 and wait - db_file_sequential_read)

  The thought difficult to obtain a cancellation reason reading when extracting data from TWG!.

  TWG activity generates CANCEL as a result of DML for any table. Which CANCEL then also causes RESTORE to be generated.

  On cancellation, cancellation would be needed!

  OK - but this isn't the only case of use.

  But as TWG specific Session, at any time in my session would read the latest copy for all operations. This reading must come from a buffer or disc (Temp).

  And that is where you get off the track. These statements are NOT correct.

  A session can open several sliders on these data TWG and these several cursors can represent a different "coherent reading" as far as data is concerned.

  Tom Kyte explains better in this AskTom blog.

  https://asktom.Oracle.com/pls/Apex/f?p=100:11:0:P11_QUESTION_ID:4135403700346803387

  and we said...

  Yes, temporary tables generate UNDO - and therefore to generate REDO to CANCEL it.

  Do it again for the cancellation must be created because Cancel is treated the same, the undo tablespace seems to be corrupted on an event of failure/media instance recovery if the cancellation has disappeared.

  The cancellation must be filed in support of the coherence of reading. For example, if you:

  (a) charge a TWG of temporary table with data

  (b) open cursor_1 SELECT * from TWG

  (c) update the data of TWG

  (d) open cursor_2 SELECT * from TWG

  (e) delete most of the data of TWG

  (f) open cursor_3 SELECT * from TWG

  Each of these sliders should see a different result set - we have not recovered from them, has just opened their. cursor_1 must push the blocks changed to point in time (b). This requires CANCELLATION. Thus, the cancellation must be generated - and undo is always protected by the roll forward.

  Changed blocks to the TWG, as for ANY table could be physically written to disk until the transaction is completed. It is not always room in the cache buffers for ALL data that has changed.

  And, as Tom above, each of the sliders really sees the data at a point different 'read-consistent. If some of these extractions of cursor will require reading the UNDO data for "compatible" data for this particular slider.

  The point in time' is established when a cursor is open - no data has yet been read yet.

  See the section 'Multiversion Concurrency Control' of the doc

  https://docs.Oracle.com/CD/B28359_01/server.111/b28318/consist.htm#i17881

  Multiversion Concurrency Control

  Database Oracle automatically provides the reading consistency to a query so that all the data that sees the request comes from a single point in time (at the level of instruction read consistency). Oracle database can also provide read consistency to all queries in a transaction (consistency of reading at the level of transactions).

  Oracle database uses information stored in its rollback segments to provide these consistent views. Rollback segments contain old data values that have been changed by validated or recently committed transactions. Figure 13-1 shows how the Oracle database provides consistent reading using rollback segments data at the level of instruction.

  That reference above 'consistent read to a query' also applies when cursors are opened.

• 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

• 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

• Global Temporary Tables and truncate

  Hi all
  
  I have SQL script like this. Firstly, it truncates the Temp_emp and then, it will load data from big_table.
  Whenever I run this script from the SQL prompt, the data inserted into the Temp_emp are doubled. What can be the reason. Am I missing something
  concert of temporary Tables and global Truncate?
  
  *. SQL file starts here *.
  
  BEGIN
  RUN IMMEDIATELY 'TRUNCATE TABLE Temp_emp;
  END;
  /
  
  INSERT INTO Temp_Temp
  SELECT col1, col2, col3, col4 col5
  Of
  (SELECT col1, col2, col3, col4 col5 FROM big_table bt
  WHERE bt. ROWID IN (SELECT MAX (ROWID) FROM big_table
  GROUP BY col1, col2)
  ) ;
  
  /
  
  *. SQL file ends here *.
  
  Thanks in advance,
  PAL

  Please remove the "/" after the insert in your sql script. It executes the same statement insert again. Therefore, the data are doubled.

• 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.

• What is the difference between the Derived work history and temporary table?

  Could someone enlighten? Thanks in advance!

  Derived from work sheet: used as variables, display calculated values on the page, etc. are not database records.
  Temporary table: used in AEP for parallel execution, based on treatment etc.

  Check out peopletools application (for the recording of derivative works) Designer and App engine books (for the temporary table).

• Create a temporary table and insert using a select statement

  Hello
  
  I tried to create a temporary table and insert it by using the value in a select statement. Please see below the code
  
  ---
  CREATE a TEMPORARY TABLE GLOBAL Temp_Test
  (
  DATE OF DAY_FUTURE
  )
  AS
  SELECT TO_DATE (SYSDATE + ROWNUM, 'DD-MON-YY')
  DUAL CONNECT BY ROWNUM FROM < = 14)
  ---
  
  As soon as I run the script, the error message indicates the following:
  --
  
  Error from the 1 in the command line:
  CREATE a TEMPORARY TABLE GLOBAL Temp_Test
  (
  DATE OF DAY_FUTURE
  )
  ONLY select TO_DATE (sysdate + rownum, 'DD-MON-YY')
  Double connect rownum < = 14)
  
  Error in the command line: 2 column: 1
  Error report:
  SQL error: ORA-01773: cannot specify the types of data in this TABLE to CREATE column
  01773 00000 - 'cannot specify the types of column data in this TABLE to CREATE"
  * Cause:
  * Action:
  --
  
  
  What seems the problem? I already have the data type such as TO_DATE on my select statement.
  
  Any help would be appreciated
  
  Thank you

  SQL> CREATE GLOBAL TEMPORARY TABLE Temp_Test
    2  (
    3  DAY_FUTURE
    4  ) on commit preserve rows
    5  AS
    6  SELECT TO_DATE(SYSDATE+ROWNUM, 'DD-MON-YY')
    7  FROM DUAL CONNECT BY ROWNUM <= 14
    8  /
  
  Table created.
  
  SQL> select count(*)
    2    from temp_test
    3  /
  
    COUNT(*)
  ----------
          14
  

• Ask about the creation and filling I$ table on different condition

  Hello
  I have a question about the creation and filling I$ table on a different condition. In which condition the I$ table creation? And these conditions are given below:
  
  (1) * source and transit area * are on the same server (that is to say target is located on another server)
  (2) * gathering and target area * are on the same server (IE source is on another server)
  (3) * source, transit area and target * are * different 3 * Server
  Source 4), area transit and target are on the same server
  Thank you

  I'm not quite clear to your question. Always try my best to erase it.

  In your all over requirement I$ table will be created.
  If the same staging as target (a database, a user) then all temporary tables are created in this user
  If the scaffolding is different from the target (a database, two users (A, B)), then all temporary tables will be created under that user A (lets consider) and the data will be inserted into the target table that is present to user B

  Staging is different from the target (two database, two users (A1, A2), architecture not recommended) if all temporary tables will be created under that user A1 (A1 of the databases) and the data will be inserted into the target table which is present in user A2 (A2 data base)

  If the source, staging, the target will be under a database then no. LKM is required, IKM is sufficient to load the data into the target. Especially for this, you can see an example given by Craig.
  http://S3.amazonaws.com/ora/ODI-Simple_SELECT_and_INSERT-interface.swf

  Thank you.

• Ordinary table from the temporary table vs

  Hello
  What is the difference between a temporary table and a regular ODI table.
  
  I created a temporary table mapping. Works very well. Now, I added the column in the mapping. To make it work, I have to drop the temporary table that created starting from my previous run or add the column in the temporary table. So I was wondering what is the difference between temp and a regular table in terms of maintenance.
  
  How can I make adding new dynamic columns.
  
  -app

  Just to add to what others have said.

  (Temporary interface or yellow Interface) to create (Temp Table or Table Stagging)
  -------------------------------------------------------- ----------------------------------------------------------------

  This method is used to create a temporary Table or Stagging table so that you can export your data before the load in the main target.
  Also its always good practice to create them in the scheme of work (where $ tables are created), except if you required in your database schema.
  This interface are marked by yellow color
  Also these Interface can be dragged directly into all other Interfaces.

  The main reason why they are not removed or delete which is then we cannot call in the following Interface to load the target.

  tables of $
  ------------

  Here's the ODI tables it creates before loading the data into the target as ODI works with ELT concept where his charges into a temporary table (C$, I$, $ J etc.). ODI after loading data in these tables $ can do the necessary transformation and finally load into the target table.
  Once the loaded data to compeltely there ' won't be any use of these tables so they let down, even if you have not deleted by havingthe option
  Delete temporary objects - not in LKM and IKM. Generally used for debugging, but once you have finished debugging, make sure that you return Yes, ODI else will not remove these tables of $.

  How can I make adding new dynamic columns.

  Although I see no reason to drop the temporary table or tables intermediaries. Its good to drop in the database and run your IKM, but again please find a way to do it using revenge for your reference.

  Step 1 - create a copy of your IKM

  Step 2 - Add another command called Drop Target Table and use the following code

   Drop table  <%=snpRef.getTable("L", "TARG_NAME", "A")%> 
  

  Move it before you create the target Table.

  Step 3. Added an option - Drop Table target, so that you can specify whether to drop or not. Go on command and option and instead of always run, check the Drop target only Table option.

  That way if you do not want to delete the target table, it used to other specify Yes.

  I hope this helps.

• use of indication of optimization in ODI prcedures and Interfaces.

  Hello
  
  How can we use the optimization tips in the ODI procedures and interfaces?
  Are there docs for this or any links?
  
  Thank you
  Mahesh

  Just standard KM tweaking...

  If its for always serve, and then duplicate the that you are currently using and KM change step on the new, use it again in the future.

  Best method would be to put in place a KM option and refer to the option in the KM stage, you can see an example of this in effect with the KM LKM Sql to Oracle, the option ' WORK_TABLE_OPTIONS and the work step Create table.

  you might therefore have a KM Option called "INDEX" and referencing it like this in your approach to KM:

  INSERT
  / * <%=odiRef.getUserExit("HINT")%> * /.
  etc etc.

  You then set your index on a per-interface basis, leave the field blank for any suspicion.

• To avoid temporary tables

  Hello.
  I need some suggestion desperately. I'm new on ODI and I need to learn myself.
  I don't want to create temporary tables. is this possible?
  
  Thank you

  Hi 897704

  Here you have to give the privilege required to the schema target to create the table in the scheme of work.

  That is to say the SCHEMA (SIMSDT1) should have create table on WORKSCHEMA (ODIDT1) privilege

  Thank you

• Delete temporary tables

  Hi all, we are working with an Oracle schema as a staging area. Basically, what we want, is to store all the intermediate transformations in temporary tables (stored in this area of transit of Oracle). These temporary tables are used as source data warehouses in other interfaces
  
  Our question is about the deletion of the tables. Once in an Oracle DB, we have kept the final data, we want that these temporary tables should be deleted. Do we have to do it via a sql command to remove embedded in an ODI procedure?
  We thought that as they were temporary, they could be automatically removed when the package is run.
  
  We assume that if we use the Sunopsis Memory engine and we have the application below, the temporary tables will be deleted when the package ends:
  
  The Test package
  Interface 1: make some joins and filters and stores the data in TEMP_1
  Interface 2: make some joins and filters using TEMP_1 and stores the data in TEMP_2
  Interface 3: do some joins and filters using TEMP_2 and stores the final data in TABLE a.
  
  Option: using Oracle physical schema as transit area
  Option b: using the Sunopsis Memory engine as transit area
  
  To conclude, and should be deleted TEMP_1 TEMP_2, if we use Option A?
  
  Another thing, that are the main factors to decide whether to use the Sunopsis Memory or Oracle DB table (for example) engine as transit zone?
  
  Thanks in advance to NSI

  Hi-

  Rest area can be decided depending on where you load the data. In your scenario, the final data should be loaded into Oracle DB, the staging area should be A option.

  Add the drop table statement to remove TEMP_1 and TEMP_2 tables in your approach to Interface3 KM.

  Hope it will be useful to you.

  Thank you
  Silou René-coral