RE: Working with a BLOB

From: Kevin Lange <kgel_at_ppoone.com>
Date: Wed, 30 May 2001 15:10:09 -0700
Message-ID: <F001.00314B71.20010530150958@fatcity.com>

Walter;
  The package that comes with Oracle, DBMS_LOB, has functions to Append, Compare, Copy, Erase, GetLength, INSTR, LoadFromFile, Read, Substr, Trim, and Write BLOBS. You should probably try starting from that one.

Oracle Built-In Packages from Oriely Press (ISBN 1-56592-375-8) Chapter 8, Managing Large Objects.

Kevin

-----Original Message-----

Sent: Wednesday, May 30, 2001 5:30 PM
To: Multiple recipients of list ORACLE-L

I've been through the documentation on LOBs but am still stuck trying to figure out how to interrogate the contents of a BLOB.

We have a table with a BLOB column in it. All it contains in text data (i.e. memo notes). Why it was created as a BLOB and not a CLOB is unknown to me and done before I was hired. All I need to do is determine if a particular string ('.com') pattern exists in the column, within the first 75 bytes, and return its starting position.

Would someone help me out? Thanks!
-w

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Author: Walter K
  INET: alden14004_at_yahoo.com

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Author: Kevin Lange
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