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Thread: LOBs and DR$ Tables

  1. #1
    Join Date
    Mar 2001
    New York , New York

    I have a table with a BLOB column. I am storing lobs in a seperate tablespace.

    Somehow some DR$ tables have been created which have millions of rows and keep increasing exponentially every time I add a mp3 or pdf file into the lob column of the table.

    what are these DR$ tables and why is their size increasing exponentially.

    Here is a snapshot of the sizes currently

    segment_name MB EXTENTS tablespace_name
    ---------------------------------------- ---------- ---------- ----------------------
    DR$CU_PDF_POL$I 864.578125 1729 CONTEXT_DATA
    DR$CU_PDF_POL$X 413.554688 827 CONTEXT_DATA
    DR_01095_I1T1 125.914063 248 CONTEXT_DATA
    DR_01095_I1I1 108.195313 213 CONTEXT_DATA
    SYS_LOB0000070215C00006$$ 51 102 CONTEXT_DATA

    I tried looking around for more information but couldnt find.

    Please suggest.


    You can if you think you can.

  2. #2
    Join Date
    Apr 2001
    Brisbane, Queensland, Australia
    Well looking at your tablespace name and the fact they are DR$ tables would indicated to be your using INTERMEDIA and domain indexes. You see, when you are adding documents, the contents of the documents are being indexed via indexing processes.

    OCP 8i, 9i DBA
    Brisbane Australia

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