L_blob_len := DBMS_LOB.getlength(p_blob) There are a few ways you can do this to get the user to.
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This example is available here.ĬREATE OR REPLACE PROCEDURE blob_to_file (p_blob IN BLOB, Download API Files With React & Fetch What Is This Let’s say you want to make a request to an API endpoint for a PDF or other document. In reality you would probably put this code into a stored procedure, or packaged procedure. The "wb" open mode can be used along with the PUT_RAW procedure to prevent extra newline characters being added on a Windows platform. Oracle 10g includes extra open modes (rb, wr, ab) to signify byte mode operation. Port-specific Bug #2546782, raised against 9.2.0 on Windows 2000, reports wrong output from UTL_FILE.PUT_RAW. Close the file if something goes wrong.įinally, you can check the file is produced correctly. UTL_FILE.put_raw(l_file, l_buffer, TRUE) Read chunks of the BLOB and write them to the fileĭBMS_LOB.read(l_blob, l_amount, l_pos, l_buffer) L_blob_len := DBMS_LOB.getlength(l_blob) Next we open the BLOB, read chunks into a buffer and write them to a file. GRANT READ, WRITE ON DIRECTORY BLOBS TO my_user In Oracle 9iR2 (9.2) it is also possible to perform this operation using new functionality provided by the UTL_FILE package.įirst we create a directory object pointing to the destination directory.ĬREATE OR REPLACE DIRECTORY BLOBS AS '/tmp/'
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In a previous article I explained how to export the contents of a BLOB to a file using a Java stored procedure. Home » Articles » 9i » Here Export BLOB Contents Using UTL_FILE
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