I just found Edward Stanglers next post in the problems with not running catpatch.sql issue entitled "Missing DROP_SEGMENTS from DBA_TAB_MODIFICATIONS". This is part of a feature added in 8i that allows monitoring to be set on a table. When the table is modified significantly (>10%) then the statistics are effectively stale. Then the DBMS_STATS.GATHER_SCHEMA_STATS can be run with "GATHER STALE" to just update those tables that have changed. This is a good performance boost. Ed explains that this data is kept in memory and flushed to a dollar table periodically. The flushing is automatic in 8i and 9i (greater frequency) and can also be done manually. Ed explains that in 9.2.0.5 the DROP_SEGMENTS was added to SYS.MON_MODS$.
This is the subject of Ed's post, the fact that catpatch.sql needs to be run to add this column. Edward then goes on to explain the problems of not running catpatch.sql. Interesting post, again it’s available here.
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Pete Finnigan's Oracle Security Weblog
This is the weblog for Pete Finnigan. Pete works in the area of Oracle security and he specialises in auditing Oracle databases for security issues. This weblog is aimed squarely at those interested in the security of their Oracle databases.
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December 2004
- Another great recovery disk - This time a CD - 12/01/2004 by 12/01/2004
- Three great papers on shell codes and encoding and decoding - 12/02/2004 by 12/02/2004
- Next Edward Stangler post in the missing catpatch.sql series - 12/03/2004 by 12/03/2004
- Edwards next post in the series of catpatch.sql issues. - 12/04/2004 by 12/04/2004
- Ed's final post in the issues with not running catpatch.sql is there - 12/05/2004 by 12/05/2004
- SANS announces the new Securing Oracle training course - 12/06/2004 by 12/06/2004
- Mary Ann Davidson held a guru chat session at OOW - 12/07/2004 by 12/07/2004
- Oracle Database 10g Release 2 keynote at Oracle Open World - 12/08/2004 by 12/08/2004
- Frank has a good example of simple J2EE form based authentication for ADF UIX - 12/09/2004 by 12/09/2004
- Justin Kestelyn sums up Oracle Open World - 12/10/2004 by 12/10/2004
- News.com article : Finally, a sensible security scheme - 12/11/2004 by 12/11/2004
- Comments have been disabled from my weblog - 12/12/2004 by 12/12/2004
- A useful post on c.d.o.s about ADMIN_RESTRICTIONS_{listener_name} - 12/13/2004 by 12/13/2004
- Arup Nanda has a paper on Oracle Security Auditing part 1 on dbazine.com - 12/14/2004 by 12/14/2004
- Amis blog talks about SQuirrel - an open source database tool - 12/15/2004 by 12/15/2004
- Howard Rogers on dropping the DBA, CONNECT and RESOURCE roles - 12/16/2004 by 12/16/2004
- Tools page updated - 12/17/2004 by 12/17/2004
- Mark has found a good paper on programming Java in stored procedures - 12/18/2004 by 12/18/2004
- Post about setting up and using autotrace - 12/19/2004 by 12/19/2004
- Tools page updated - 12/20/2004 by 12/20/2004
- Database user account status's in SYS.USER_ASTATUS_MAP - 12/21/2004 by 12/21/2004
- SYS.USER_ASTATUS_MAP missing values solved - 12/22/2004 by 12/22/2004
- All the JDeveloper presentations from Oracle Open World - 12/23/2004 by 12/23/2004
- Web site statistics page added - 12/24/2004 by 12/24/2004
- Encrypting JDBC thin connections with SQL*Net - 12/27/2004 by 12/27/2004
- XML DB Beta program for Oracle 10g release 2 - 12/28/2004 by 12/28/2004
- Role based security management in Oracle designer - 12/29/2004 by 12/29/2004
- A free Perl based Log Analysis tool - 12/30/2004 by 12/30/2004
- Happy new year for 2005 - 12/31/2004 by 12/31/2004
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