Re: to insert into blob

From: Marin Dimitrov <marin_at_sirma.bg>
Date: Tue, 20 Feb 2001 02:44:13 -0800
Message-ID: <F001.002B8721.20010220014107@fatcity.com>

Original Message ----- To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Sent: Monday, February 19, 2001 23:40

> I have a wav file and I have to insert it into a table with column blob
> type.
> How do I do this.
>

If u're working with JDBC then u should just open the OutputStream of the BLOB and write content from the .wav file's InputStream there.

If u want to do it only with the help of the DBMS_LOB package then you could take a look in the docs in the "Oracle8i Application Developer's Guide - Large Objects (LOBs) " chapter. There is an example for reading a file and storing the content into a BLOB that looks like :

/* Note that the example procedure loadLOBFromBFILE_proc is not part of the

DBMS_LOB package: */
CREATE OR REPLACE PROCEDURE loadLOBFromBFILE_proc IS

   Dest_loc       BLOB;
   Src_loc        BFILE := BFILENAME('FRAME_DIR', 'Washington_frame');
   Amount         INTEGER := 4000;

BEGIN
SELECT Frame INTO Dest_loc FROM Multimedia_tab

      WHERE Clip_ID = 3 FOR UPDATE;
   /* Opening the source BFILE is mandatory: */    DBMS_LOB.OPEN(Src_loc, DBMS_LOB.LOB_READONLY);    /* Opening the LOB is optional: */
   DBMS_LOB.OPEN(Dest_loc, DBMS_LOB.LOB_READWRITE);    DBMS_LOB.LOADFROMFILE(Dest_loc, Src_loc, Amount);    /* Closing the LOB is mandatory if you have opened it: */    DBMS_LOB.CLOSE(Dest_loc);
   DBMS_LOB.CLOSE(Src_loc);
   COMMIT;
END; Of course u should read the docs for details about the example (especially for details about CREATE DIRECTORY, BFILE, EMPTY_BLOB()).

hth,

Marin

"When someone is seeking, it happens quite easily that he only sees the thing that he is seeking; that he is unable to find anything, unable to absorb anything, because he is only thinking of the thing he is seeking, because he is obsessed with his goal. Seeking means: to have a goal; but finding means: to be free, to be receptive, to have no goal. ..."

                                Herman Hesse, "Siddhartha"

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Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Marin Dimitrov
  INET: marin_at_sirma.bg

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Received on Tue Feb 20 2001 - 04:44:13 CST