Global Temp Tables

Has anyone had any luck using global temp tables within DI?  I am tryng to create a process that will populate a global tmp table in one data flow and then read from that global tmp table in the next data flow within the same work flow.  A template table won't work for my needs as I also need to be able to do a lookup_ext... is null from this table as well.
There is a risk in using a physical temp table as this process will be ran many times through out the day with various values.
Thanks,
Alicia

Within Oracle one can create a Global Temporary Table which is a database object; however, it clears it's contents when the session is released.  It is useful when creating reusable routines as multiple processes can write different information to the table and the table maintains the information for the life of the SQL session.  For instance one can populate the table with a list of codes to be used in a SQL statement for a product and run a seperate process simutaneously populating codes for a different product.
The probelm I am having right now is that DI seems to be closing it's SQL session before it goes to the Data Flow that needs the code list.
Thanks,
Alicia

Similar Messages

  • Multiple users accessing the same data in a global temp table

    I have a global temp table (GTT) defined with 'on commit preserve rows'. This table is accessed via a web page using ASP.NET. The application was designed so that every one that accessed the web page could only see their data in the GTT.
    We have just realized that the GTT doesn't appear to be empty as new web users use the application. I believe it has something to do with how ASP is connecting to the database. I only see one entry in the V$SESSION view even when multiple users are using the web page. I believe this single V$SESSION entry is causing only one GTT to be available at a time. Each user is inserting into / selecting out of the same GTT and their results are wrong.
    I'm the back end Oracle developer at this place and I'm having difficulty translating this issue to the front end ASP team. When this web page is accessed, I need it to start a new session, not reuse an existing session. I want to keep the same connection, but just start a new session... Now I'm losing it.. Like I said, I'm the back end guy and all this web/connection/pooling front end stuff is magic to me.
    The GTT isn't going to work unless we get new sessions. How do we do this?
    Thanks!

    DGS wrote:
    I have a global temp table (GTT) defined with 'on commit preserve rows'. This table is accessed via a web page using ASP.NET. The application was designed so that every one that accessed the web page could only see their data in the GTT.
    We have just realized that the GTT doesn't appear to be empty as new web users use the application. I believe it has something to do with how ASP is connecting to the database. I only see one entry in the V$SESSION view even when multiple users are using the web page. I believe this single V$SESSION entry is causing only one GTT to be available at a time. Each user is inserting into / selecting out of the same GTT and their results are wrong.
    I'm the back end Oracle developer at this place and I'm having difficulty translating this issue to the front end ASP team. When this web page is accessed, I need it to start a new session, not reuse an existing session. I want to keep the same connection, but just start a new session... Now I'm losing it.. Like I said, I'm the back end guy and all this web/connection/pooling front end stuff is magic to me.
    The GTT isn't going to work unless we get new sessions. How do we do this?
    Thanks!You may want to try changing your GTT to 'ON COMMIT DELETE ROWS' and have the .Net app use a transaction object.
    We had a similar problem and I found help in the following thread:
    Re: Global temp table problem w/ODP?
    All the best.

  • Inserting data in global temp table?

    Hello experts,
    i have a form having base table master and detail. i can insert upadate the records.
    requirement: creating the global temp table for same form. sothat data save only form session.
    for this i created 2 global temp table having same structure required for same form.
    i changes the property for block as base table to global temp table.
    now i am trying to save the records but not going in the temp table. as i changes the block base table property to temp tables
    as well as advance data block properties also .
    please tell me the reason? where can be the problem.
    thanks yash
    Edited by: yash_08031983 on Apr 16, 2012 1:27 AM

    i am trying to save the records but not going in the temp table.How do you check that? You cannot go to sqlplus and check if there are any records in the GTT. Data in a GTT is only visible in the current session (= only in the form).
    What is the use of a GTT here? What are you trying to achieve?

  • Global Temp table Vs Regular table

    Hi,
    I need a temp table to store few IDs (which I select from a complex query). I would be deleting the data from the temp table at the end of the session.
    From a performance perspective, I was wondering if I should be using a GLOBAL temporary table or just a regular table in which I will manually delete rows at the end.
    The tkprof showed using the global temp table expensive. If yes, I just want to confirm it and know why it is the case.
    Thanks!
    Anand

    Assuming that the cursor you open to get the transaction_id actually has a where clause, and refraining from comment on the need for dynamic column lists, I would likely do it something like:
    DECLARE
       lv_query   VARCHAR2 (32767);
       l_col_list VARCHAR2(4000);
    BEGIN
       l_col_list := control_module_common_pkg.get_columns('EPOS_TRANSACTION_HEADER',
                                                           FALSE);
       lv_query := 'INSERT INTO AK_TRANSACTION_HEADER ('||l_col_list||
                   ' ) SELECT '||l_col_list||' FROM EPOS_TRANSACTION_HEADER
                   WHERE ETH_TRANSACTION_ID IN (SELECT eth_transaction_id
                                                FROM epos_transaction_header
                                                WHERE <whatever would be in the cursor>)';
       EXECUTE IMMEDIATE lv_query;
       COMMIT;
    END;If there really is no where clause ion the cursor, then it would simply be:
    DECLARE
       lv_query   VARCHAR2 (32767);
       l_col_list VARCHAR2(4000);
    BEGIN
       l_col_list := control_module_common_pkg.get_columns('EPOS_TRANSACTION_HEADER',
                                                           FALSE);
       lv_query := 'INSERT INTO AK_TRANSACTION_HEADER ('||l_col_list||
                   ' ) SELECT '||l_col_list||' FROM EPOS_TRANSACTION_HEADER';
       EXECUTE IMMEDIATE lv_query;
       COMMIT;
    END;In either case, I would also re-consider the commit in the procedure. It should perhaps be the caller of this procedure that issues the commit, not the procedure itself.
    John

  • Global Temp Table, always return  zero records

    I call the procedure which uses glbal temp Table, after executing the Proc which populates the Global temp table, i then run select query retrieve the result, but it alway return zero record. I am using transaction in order to avoid deletion of records in global temp table.
    whereas if i do the same thing in SQL navigator, it works
    Cn.ConnectionString = Constr
    Cn.Open()
    If FGC Is Nothing Then
    Multiple = True
    'Search by desc
    'packaging.pkg_msds.processavfg(null, ActiveInActive, BrandCode, Desc, Itemtype)
    SQL = "BEGIN packaging.pkg_msds.processavfg(null,'" & _
    ActiveInActive & "','" & _
    BrandCode & "','" & _
    Desc & "','" & _
    Itemtype & "'); end;"
    'Here it will return multiple FGC
    'need to combine them
    Else
    'search by FGC
    SQL = "BEGIN packaging.pkg_msds.processavfg('" & FGC & "','" & _
    ActiveInActive & "','" & _
    BrandCode & "',null,null); end;"
    'will alway return one FGC
    End If
    ' SQL = " DECLARE BEGIN rguo.pkg_msds.processAvedaFG('" & FGC & "'); end;"
    Stepp = 1
    Cmd.Connection = Cn
    Cmd.CommandType = Data.CommandType.Text
    Cmd.CommandText = SQL
    Dim Trans As System.Data.OracleClient.OracleTransaction
    Trans = Cn.BeginTransaction()
    Cmd.Transaction = Trans
    Dim Cnt As Integer
    Cnt = Cmd.ExecuteNonQuery
    'SQL = "SELECT rguo.pkg_msds.getPDSFGMass FROM dual"
    SQL = "select * from packaging.aveda_mass_XML"
    Cmd.CommandType = Data.CommandType.Text
    Cmd.CommandText = SQL
    Adp.SelectCommand = Cmd
    Stepp = 2
    Adp.Fill(Ds)
    If Ds.Tables(0).Rows.Count = 0 Then
    blError = True
    BlComposeXml = True
    Throw New Exception("No Record found for FGC(Finished Good Code=)" & FGC)
    End If
    'First Row, First Column contains Data as XML
    Stepp = 0
    Trans.Commit()

    Hi,
    This forum is for Oracle's Data Provider and you're using Microsoft's, but I was curious so I went ahead and tried it. It works fine for me. Here's the complete code I used, could you point out what are you doing differently?
    Cheers,
    Greg
    create global temporary table abc_tab(col1 varchar2(10));
    create or replace procedure ins_abc_tab(v1 varchar2) as
    begin
    insert into abc_tab values(v1);
    end;
    using System;
    using System.Data;
    using System.Data.OracleClient;
    class Program
        static void Main(string[] args)
            OracleConnection con = new OracleConnection("data source=orcl;user id=scott;password=tiger");
            con.Open();
            OracleTransaction txn = con.BeginTransaction();
            OracleCommand cmd = new OracleCommand("begin ins_abc_tab('foo');end;", con);
            cmd.Transaction = txn;
            cmd.ExecuteNonQuery();
            cmd.CommandText = "select * from abc_tab";
            OracleDataAdapter da = new OracleDataAdapter(cmd);
            DataSet ds = new DataSet();
            da.Fill(ds);
            Console.WriteLine("rows found: {0}", ds.Tables[0].Rows.Count);
            // commit, cleanup, etc ommitted for clarity
    }

  • Global Temp Table or PL/SQL Table

    I am trying to determine if this can be done only using PL/SQL table. If not, will the usage of the global temp table affects the performance.
    Here is the situation,
    I have a data block that is based on a stored procedure. This stored procedure will return table of records from different database tables with join conditions. Some of the fields within the table of records will not have data returned from database tables. They will be the fields displayed on the form and the data will be entered by user.
    For example:
    Records will look like:
    Id          (will be populated by procedure)
    Hist_avg     (will be populated by procedure)
    My_avg     (will be used as field on the form so that user can enter their own avg)
    Cheked     (will be populated by procedure)
    My questions are:
    1.     Is this doable in form using a data block based on PL/SQL table?
    2.     Will users be able to manipulate (update) the data that based on the PL/SQL table in the memory as they wish and invoke the procedure to update the underlying table when clicking on a button (Update Avg)?
    3.     What is the advantage of using PL/SQL table and global temp table from database and form point of views?
    Any info is appreciated.

    Hi there...
    Here is the Reference...
    http://asktom.oracle.com/pls/ask/f?p=4950:8:2939484874961025998::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:604830985638
    Best Regards...
    Muhammad Waseem Haroon

  • Global Temp Table Not found - SSIS

    I am facing below error while using global temp table in SSIS.
    [OLE DB Destination [78]] Error: SSIS Error Code DTS_E_OLEDBERROR.  An OLE DB error has occurred. Error code: 0x80040E37.
    An OLE DB record is available.  Source: "Microsoft SQL Server Native Client 10.0"  Hresult: 0x80040E37  Description: "Table/view either does not exist or contains errors.".
    [OLE DB Destination [78]] Error: Failed to open a fastload rowset for " ##AGENTDTLS". Check that the object exists in the database.
    [SSIS.Pipeline] Error: component "OLE DB Destination" (78) failed the pre-execute phase and returned error code 0xC0202040.
    1) For data connection manager - Retain same connection is set to True
    2) Data Flow task - Delay Validation is set to True
    3) Destination Task - Using Temp Table - ValidateExternalMetadata is set to false.
    4) I am just using one data connection.
    5) before using the temp file I am checking if its exits and if yes drp it first and create it.
    Not able to understand the reason for failure.

    Why don't you use permanent table in tempdb?
    Kalman Toth Database & OLAP Architect
    SQL Server 2014 Design & Programming
    New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

  • Global temp table problem w/ODP?

    I'm using the current version of the ODP .NET data adapter to access a global temporary table on an Oracle
    9.2.0.4.0 server created with -
    CREATE GLOBAL TEMPORARY TABLE euik_dex_open_tasks_temp1
    (resource_id NUMBER,
    task_assignment_id NUMBER,
    task_id NUMBER,
    incident_id NUMBER,
    customer_product_id NUMBER,
    inventory_item_id NUMBER,
    contract_service_id NUMBER)
    ON COMMIT DELETE ROWS
    (See below for what is returned from the data dictionary for this table)
    If I use SQLPlus to insert a row into this table, then query the table immediately, I see the inserted row.
    If I use the same exact SQL through the ODP adapter, the ExecuteNonQuery statement returns the fact the 1 row was inserted. However, doing a SELECT from the table immediately after the INSERT, no rows are returned. See the .NET test ap, below.
    Also, note that if I use a global temp table made with ON COMMIT PRESERVE ROWS, the ODP adapter works fine.
    What am I doing wrong? Thanks in advance...
    Pat
    Private Sub TestTempTable()
    Dim Str1 As New System.Text.StringBuilder
    Dim Strx As New System.Text.StringBuilder
    Dim StrOut As New System.Text.StringBuilder
    Dim nInsert As Integer
    Dim nRow As Integer
    'Insert into the global temp table
    Str1.Append("INSERT INTO euik_dex_open_tasks_temp1(resource_id, " & vbCrLf)
    Str1.Append("      task_Assignment_id, " & vbCrLf)
    Str1.Append("     task_id, " & vbCrLf)
    Str1.Append("     incident_id, " & vbCrLf)
    Str1.Append("     customer_product_id, " & vbCrLf)
    Str1.Append("     inventory_item_id, " & vbCrLf)
    Str1.Append("     contract_service_id) " & vbCrLf)
    Str1.Append(" VALUES(1,2,3,4,5,6,7)" & vbCrLf)
    Dim cn As New Oracle.DataAccess.Client.OracleConnection
    Dim dr As Oracle.DataAccess.Client.OracleDataReader
    Dim cd As New Oracle.DataAccess.Client.OracleCommand
    Try
    cn.ConnectionString = "Data Source=XXX;User ID=mickey;Password=mouse;"
    cd.CommandType = CommandType.Text
    cd.Connection = cn
    cn.Open()
    'Run the query to load data in the temp table
    cd.CommandText = Str1.ToString()
    nInsert = cd.ExecuteNonQuery()
    MessageBox.Show(nInsert & " row(s) inserted.")
    'See if there are rows in the temp table
    Strx.Append("Select * from euik_dex_open_tasks_temp1")
    cd.CommandText = Strx.ToString()
    dr = cd.ExecuteReader
    nRow = 0
    While dr.Read
    StrOut.Append(dr(0) & vbCrLf)
    nRow = nRow + 1
    End While
    MessageBox.Show(nRow & " row(s) selected.")
    Catch ex As OracleClient.OracleException
    MessageBox.Show(ex.Message)
    Catch ex As Exception
    MessageBox.Show(ex.Message)
    Finally
    cn.Close()
    End Try
    End Sub
    OWNER     TABLE_NAME     TABLESPACE_NAME     CLUSTER_NAME     IOT_NAME     PCT_FREE     PCT_USED     
    INI_TRANS     MAX_TRANS     INITIAL_EXTENT     NEXT_EXTENT     MIN_EXTENTS     MAX_EXTENTS     PCT_INCREASE     
    FREELISTS     FREELIST_GROUPS     LOGGING     BACKED_UP     NUM_ROWS     BLOCKS     EMPTY_BLOCKS     AVG_SPACE     
    CHAIN_CNT     AVG_ROW_LEN     AVG_SPACE_FREELIST_BLOCKS     NUM_FREELIST_BLOCKS     DEGREE     INSTANCES     
    CACHE     TABLE_LOCK     SAMPLE_SIZE     LAST_ANALYZED     PARTITIONED     IOT_TYPE     TEMPORARY     
    SECONDARY     NESTED     BUFFER_POOL     ROW_MOVEMENT     GLOBAL_STATS     USER_STATS     DURATION     
    SKIP_CORRUPT     MONITORING     CLUSTER_OWNER     DEPENDENCIES     COMPRESSION
    APPS     EUIK_DEX_OPEN_TASKS_TEMP1                    10     40     1     255               
                   1     1     NO     N                                        
         1     1     N     ENABLED               NO          Y     N     NO     
    DEFAULT     DISABLED     NO     NO     SYS$TRANSACTION     DISABLED     NO          DISABLED     
    DISABLED

    Andrew,
    As David indicated if you do not wish to have "auto commit mode" you just need to use a transaction object to manually control the transaction.
    I'm just nervous at the idea of ODP.NET initiating interactions I am not aware of.I think it would be more fair to say "finishing interactions" in this case rather than "initiating interactions" but you could always just run a SQL trace from the database to see exactly what is happening if you are concerned.
    HTH,
    - Mark
    =======================================
    Mark A. Williams
    Oracle DBA
    Author, Professional .NET Oracle Programming
    http://www.apress.com/book/bookDisplay.html?bID=378

  • Global temp table in Oracle EBS

    hi gurus,
    i have a GTT with "ON COMMIT PRESERVE ROWS".
    i am populating this table through an OAF page and displaying the data.
    as per the documentation it should delete the data from the table once user logs out from the Oracle EBS but it's not happening.
    the user still sees the records from the previous session.
    please throw some light here.
    thanks,

    i was wondering if there is any sysadmin level setup/profile setup which can end the session (JDBC) once user logs out?No such profile option exists.
    Behavior of Global Temp Table in JDBC
    Behavior of Global Temp Table in JDBC
    Global temp tables with connection pooling
    http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:4444273995237
    Make global temporary tables transaction specific
    http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:868691300346807468
    Thanks,
    Hussein

  • Can a tabular form be created/used against a GLOBAL TEMP TABLE?

    We are trying to simplify our apex applications. In doing so, we are examing the many collections we use to create tablular forms. These collections currently are tricky to manage and we are considering moving them to either VIEWS or GLOBAL TEMPORARY TABLES (GTT).
    I have created a test app against a GLOBAL TEMP TABLE....it looks great, but when I add a row and SUBMIT I recieve a message indicating record is inserted....but where did it go? I am unable to retrieve...I cannot see it in the underlying GLOBAL TEMP TABLE (as expected)....
    should I be creating an ON INSERT table on the GTT to automatically insert the data into a regular table?

    Now you know why you have to use collections :) Answered here:
    working with global temp table and apex
    Has to do with the session management and how APEX handles it.
    Create a view on your collection using the column names from the source table. Use packages to write an update, delete and insert process. This can be written automatically if there are multiple collections to handle.
    Denes Kubicek
    http://deneskubicek.blogspot.com/
    http://www.apress.com/9781430235125
    http://apex.oracle.com/pls/apex/f?p=31517:1
    http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
    -------------------------------------------------------------------

  • A better way than a global temp table to reuse a distinct select?

    I get the impression from other threads that global temp tables are frowned upon so I'm wondering if there is a better way to simplify what I need to do. I have some values scattered about a table with a relatively large number of records. I need to distinct them out and delete from 21 other tables where those values also occur. The values have a really low cardinality to the number of rows. Out of 500K+ rows there might be a dozen distinct values.
    I thought that rather than 21 cases of:
    DELETE FROM x1..21 WHERE value IN (SELECT DISTINCT value FROM Y)
    It would be better for performance to populate a global temp table with the distinct first:
    INSERT INTO gtt SELECT DISTINCT value FROM Y
    DELETE FROM x1..21 WHERE value IN (SELECT value FROM GTT)
    People asking questions about GTT's seem to get blasted so is this another case where there's a better way to do this? Should I just have the system bite the bullet on the DISTINCT 21 times? The big table truncates and reloads and needs to do so quickly so I was hoping not to have to index it and meddle with disable/rebuild index but if that's better than a temp table, I'll have to make do.
    As far as I understand WITH ... USING can't be used to delete from multiple tables or can it?

    Almost, but not quite, as efficient as using a temporary table would be to use a PL/SQL collection and FORALL statements and/or referencing the collection in your subsequent statements). Something like
    DECLARE
      TYPE value_nt IS TABLE OF y.value%type;
      l_values value_nt;
    BEGIN
      SELECT distinct value
        BULK COLLECT INTO l_values
        FROM y;
      FORALL i IN 1 .. l_values.count
        DELETE FROM x1
         WHERE value = l_values(i);
      FORALL i IN 1 .. l_values.count
        DELETE FROM x2
         WHERE value = l_values(i);
    END;or
    CREATE TYPE value_nt
      IS TABLE OF varchar2(100); -- Guessing at the type of y.value
    DECLARE
      l_values value_nt;
    BEGIN
      SELECT distinct value
        BULK COLLECT INTO l_values
        FROM y;
      DELETE FROM x1
       WHERE value = (SELECT /*+ cardinality(v 10) */ column_value from table( l_values ) v );
      DELETE FROM x2
       WHERE value = (SELECT /*+ cardinality(v 10) */ column_value from table( l_values ) v );
    END;Justin

  • Error while creating Global temp table

    Hi,
    I am very new to PL/SQL so please excuse my question. I have the below query . I have to get a count between the source table and various target tables. I am creating a global temp table to store the counts. I am getting the below error for my following query :
    Thanks for the help,
    Petronas
    ----Query----
    set serveroutput on
    Declare
    nm1 varchar2(200);
    nm2 varchar2(200);
    cnt1 number;
    cnt2 number;
    diff number;
    totdiff number;
    Begin
    nm1 := null;
    nm2:= null;
    cnt1:= 0;
    cnt2 := 0;
    diff := 0;
    totdiff := 0;
    create GLOBAL TEMPORARY TABLE diff ( name1 varchar(200), name2 varchar2(200), diff number);
    select count(*) into cnt1
    from users_staging;
    select count(*) into cnt2
    from PROD.users;
    nm1 := 'users_staging';
    nm2 := 'PROD.users';
    diff := cnt1 - cnt2;
    insert into diff values (nm1,nm2,diff);
    select count(*) into totdiff
    from diff
    where diff> 0 ;
    dbms_output.enable(10000);
    dbms_output.put_line('# of tables where difference is > 0 ' ||totdiff);
    end;
    Encountered the symbol "CREATE" when expecting one of the following:
    begin case declare end exception exit for goto if loop mod
    null pragma raise return select update while with
    <an identifier> <a double-quoted delimited-identifier>
    <a bind variable> << close current delete fetch lock insert
    open rollback savepoint set sql execute commit forall merge
    pipe

    Hi,
    "CREATE GLOBAL TEPORARY TABLE ..." is not a PL/SQL command; it is a SQL command only.
    Create the table, using that statement, before running the PL/SQL block.
    You can issue SQL statements from within PL/SQL using the EXECUTE IMMEDIATE command, but this is rarely a good idea.
    I assume the PL/SQL code is meant to create the table and then populate it.
    You should split those into two separate pieces of code. You'll only want to create the table once, no matter how many times you use it. I assume you'll want to populate it the same way many times. Remember, the "TEMPORARY" in "GLOBAL TEMPORARY TABLE" refers to the data, not the table. When you end a transaction (or a session, depending on whther you want "ON COMMIT DELETE ROWS" or "ON COMMIT PRESERVE ROWS"), the data disappears, but the now-empty stays, ready to be populated for the next transaction (or session).
    Edited by: Frank Kulash on Aug 4, 2010 2:25 PM

  • Use of Oracle global temp table in BI Publisher

    Hi All,
    I have witten a function which populates a Gobal temp table.I call the function and do a select on the global temp table.This fails to give me any result.
    We are calling the function within the package in the 'beforeReport' trigger in our Data Template in BI Publisher.
    I tried to check the session id and found that the sessions are different when we execute the functiona and when we do a select query.
    How can I avoid this situation of changing session?
    I have tried by removing commit from the function but even thta didnt help.
    Please let me know if anyone has suugestion on this.
    Thanks in advance!

    Hi,
    To check if the function is working fine , we inserted the output from temp table into a normal physical table .We queried the physical table and found the values there.
    So , the function is working fine.
    We dont have any statement like 'PRAGMA AUTONOMOUS_TRANSACTION ' in our function.
    Do we need to add it?
    Just to clarify the issue , We have populated the temp table by calling a function and after that we are trying to query the temp table.However, it appears that the session changes between teh function call and issuing of select query .This is resultin into no data being fetched as the values in Gloabal temp table persist only for a session.
    Thanks!

  • Global temp tables difference in oracle 10g and 11g

    Hi All,
    we are planning to upgrade metasolv applications from 6.0.15 (currently suing 10g) to 6.2.1(currently using 11g).We are using the Global temp tables in 10g .i just want to know is there any impact if we upgrade the Global temp tables from 10g to 11g.if so can u please explain me clearly ?
    Please and thanks.

    FAQ on new features: Re: 14. What's the difference between different versions of the database?
    This can be used as a reference for all your queries..

  • Use global temp table for DML error logging

    our database is 11.2.0.4 enterprise edition on solaris 10
    we are wondering if anyone has an opinion of or has done this before, to use a global temp table for DML error logging. We have a fairly busy transactional database with 2 hot tables for inserts. The regular error table created with dbms_errlog has caused many deadlocks which we don't quite understand yet. we have thought using global temp table for the purpose, and that seemed to work, but we can't read error from the GTT, the table is empty even reading from the same session as inserts. Does anyone have an idea why?
    Thanks

    The insert into the error logging table is done with a recursive transaction therefore it's private from your session which is doing the actual insert.
    Adapted from http://oracle-base.com/articles/10g/dml-error-logging-10gr2.php
    INSERT INTO dest
    SELECT *
    FROM  source
    LOG ERRORS INTO err$_dest ('INSERT') REJECT LIMIT UNLIMITED;
    99,998 rows inserted.
    select count(*) from dest;
      COUNT(*)
        99998
    SELECT *
    FROM  err$_dest
    WHERE  ora_err_tag$ = 'INSERT';
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