Buffer overflow?...
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  1. #1
    Join Date
    Jan 2001
    Posts
    642
    Hi,
    I am trying to dump the content of a view into a text file. I am following the steps below

    1. select the colmn to cursor
    2. Fetch cursors into variables
    3. concatinate all variables into a single string
    4. Write to string using UTL_FILE package.

    I have the problem in step 3, where I am trying to concatinate all the cursor values to a single varchar variable.
    I get the following error
    ERROR at line 1:
    ORA-20000: ORU-10027: buffer overflow, limit of 2000 bytes
    ORA-06512: at "SYS.DBMS_OUTPUT", line 106
    ORA-06512: at "SYS.DBMS_OUTPUT", line 65
    ORA-06512: at "MNDB.RESPONSE_FILE", line 310
    ORA-06512: at line 1

    Lenght of all the columns in the view will not exceed 1200 characters
    Please help me;
    Badrinath

  2. #2
    Join Date
    Nov 2000
    Location
    greenwich.ct.us
    Posts
    9,092
    Looks like you are using dbms_output for something. By default, you can only spool 2000 bytes using dbms_output. You can increase it by using the dbms_output.enable method:
    dbms_output.enable(1000000);
    Jeff Hunter
    marist89@yahoo.com
    http://marist89.blogspot.com/
    Get Firefox!
    "I pledge to stop eating sharks fin soup and will not do so under any circumstances."

  3. #3
    Join Date
    Jan 2001
    Posts
    11

    Wink

    Hi!

    Ok, here is what I know:

    DBMS_OUTPUT has a buffer, which default size is 20000. Your buffer size is set as 2000, the minimum possible.


    Here a note from the DBMS_OUTPUT header in the Oracle documentation:

    "Messages sent using DBMS_OUTPUT are not actually sent until the sending subprogram or trigger completes. There is no mechanism to flush output during the execution of a procedure. "

    That mean that your buffer don't get clear until the end of your PL-SQL block, so the problem is not the lenght of one of your line, but the sheer size of all the line of your view together.

    But there is a way to solve the problem: change the size of the buffer. You could set a size of maximum 1,000,000 using the following:

    DBMS_OUTPUT.ENABLE(your_new_size_in_integer);

    It solve my problem not long ago: hope it help you as well!




    Wolf
    va2dax@hotmail.com

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