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Oracle Text: Map Linux to Windows path

Oracle Database Tips by Donald BurlesonApril 16,  2015


Problem:  I'm facing a tricky problem within my Oracle Text application, running 10g on a Linux server.  Sadly, we have a document repository located on a windows server and I cannot change the OS.  Here we see references to the Windows directories:

select * from my_docs;

doc_id / doc_tittle / doc_path
_________________________________________________________
1 / first.doc / E:\Prodmac\felix\tm\6\214986\060\first.doc
2 / second.doc / E:\Prodmac\felix\tm\2\224345\020\second.doc
3 / third.doc / E:\Prodmac\felix\tm\4\436432\070\third.doc


The windows path has the same prefix E:\Prodmac\felix\tm for all documents but a dynamic 3 depth folder part (created by the application) at the end of the path.
From here we are trying to implement oracle text feature over these external documents.

Since the database is on a Linux machine and the doc_path points to an external windows folder, how do I manage to create a CONTEXT INDEX over the doc_path field without getting the error:

DRG-11513: unable to open or write to file

The problem is to map from Linux the exact windows path that is stored in the table.
Since the path is dynamic generated I cannot even use the the 'path' file_datastore attribute to define common folders.

create index
   my_idx on my_docs(doc_path)
indextype is
   CTXSYS.CONTEXT
parameters
   ('datastore ctxsys.file_datastore') ;



Solution:  The solution is to define a user_datastore (instead of file_datastore) on my  CTXSYS.CONTEXT index:

create index
   my_idx on my_docs(doc_path)
indextype is
   CTXSYS.CONTEXT
parameters
   ('datastore ctxsys.user_datastore') ;


Inside the user_datastore procedure, I can now transform the path and access the external file on Windows from Linux.

 

 

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