PDFlib Text Extraction Toolkit (TET) Manual

SQL> GRANT EXECUTE ON CTX_DOC TO HR;
SQL> GRANT EXECUTE ON CTX_OUTPUT TO HR;
SQL> GRANT EXECUTE ON CTX_QUERY TO HR;
SQL> GRANT EXECUTE ON CTX_REPORT TO HR;
SQL> GRANT EXECUTE ON CTX_THES TO HR;
Example A: Store path names of PDF documents in the database. This example stores
file name references to the indexed PDF documents in the database. Proceed as follows:
> Change to the following directory in a command prompt:
/connectors/Oracle
> Adjust the tetpath variable in the tetsetup_a.sql script so that it points to the directory
where TET is installed.
> Prepare the database: using Oracle’s sqlplus program create the table pdftable_a, fill
this table with path names of PDF documents, and create the index tetindex_a (note
that the contents of the tetsetup_a.sql script are slightly platform-dependent because
of different path syntax):
SQL> @tetsetup_a.sql
> Query the database using the index:
SQL> select * from pdftable_a where CONTAINS(pdffile, 'Whitepaper', 1) > 0;
> Update the index (required after adding more documents):
SQL> execute ctx_ddl.sync_index('tetindex_a')
> Optionally clean up the database (remove the index and table):
SQL> @tetcleanup_a.sql
Example B: Store PDF documents as BLOBs in the database and add metadata. This
examples stores the actual PDF documents as BLOBs in the database. In addition to the
PDF data some metadata is extracted with the pCOS interface and stored in dedicated
database columns. The tet_pdf_loader Java program stores the PDF documents as BLOBs
in the database. In order to demonstrate metadata handling the program uses the pCOS
interface to extract the document title (via the pCOS path /Info/Title) and the number of
pages in the document (via the pCOS path length:pages). The document title and the
page count will be stored in separate columns in the database. Proceed as follows to run
this example:
> Change to the following directory in a command prompt:
/connectors/Oracle
> Prepare the database: using Oracle’s sqlplus program create the table pdftable_b and
the corresponding index tetindex_b:
SQL> @tetsetup_b.sql
> Populate the database: fill the table with PDF documents and metadata via JDBC
(note that this is not possible with stored procedures). The ant build file supplied
with the TET package expects the ojdbc14.jar file for the Oracle JDBC driver in the
same directory as the tet_pdf_loader.java source code. Specify a suitable JDBC connection
string with the ant command. The build file contains a description of all properties
that can be used to specify options for the Ant build. You can supply values for
42 Chapter 4: TET Connectors