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Chapter 6 Oracle Tablespace and File Internals Scripts

Directory and Library Internals

Oracle8 introduced two new internal database structures, directories and libraries. Libraries point to external sharable libraries of 3GL routines. They can be called via the external procedures call option, also new to Oracle8. Directories point to external directories, where BFILE and other LOB data objects can be stored outside the database.

Monitoring Directories

Directory information is available from the dba_directories view. This view has three columns. A simple report will show everything the database knows about directories:

dir_rep.sql

COLUMN owner               FORMAT a10 HEADING 'Owner'
COLUMN directory_name      FORMAT a15 HEADING 'Directory'
COLUMN directory_path      FORMAT a45 HEADING 'Full Path'
SET VERIFY OFF PAGES 58 LINES 78 FEEDBACK OFF
ttitle 'Database Directories Report'
SPOOL dir_rep.lis



 

The Oracle script collection contains more than 600 working Oracle scripts.  You can download them immediately at this link:
 


 

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