Karl Reitschuster's Oracle SpaceORACLE RDBMShttp://orcasoracle.squarespace.com/oracle-rdbms/2009-10-19T08:02:56ZSquarespaceUpgrading from Oracle Database 10g to 11g: What to expect from ...http://orcasoracle.squarespace.com/oracle-rdbms/2009/10/12/upgrading-from-oracle-database-10g-to-11g-what-to-expect-fro.htmlKarl Reitschuster2009-10-12T05:36:53Z2009-10-12T05:36:53ZAlmost 3 years after introducing Oracle 11g Release 1 Oracle posted a white paper migrating CBO from Oracle 10g to 11g; Ok - better late then never. There are a lot of topics so the white paper is well recommended to read; you will find it here

 

/Karl

]]>Converting Timestamp to Date ...http://orcasoracle.squarespace.com/oracle-rdbms/2009/10/9/converting-timestamp-to-date.htmlKarl Reitschuster2009-10-09T11:49:21Z2009-10-09T11:49:21ZHi reader,

i needed to convert the date fraction from a times tamp type variable; Usually the way is to convert the time stamp to string and then to convert it back to date; Hmmm ... . This looks not very elegant ;-)

]]>Oracle 11g Release 2 coming soonhttp://orcasoracle.squarespace.com/oracle-rdbms/2009/7/29/oracle-11g-release-2-coming-soon.htmlKarl Reitschuster2009-07-29T07:40:46Z2009-07-29T07:40:46ZHi,

got an E-Mail for a Oracle 11g Release 2 Roads how.

It seems 11.2 is coming soon; Most interesting which platforms will be served first. A lot of platforms even had no 11.1 release deployed. for example Mac OS X, Sun Solaris X86_64, ...

Our environment running with 10.2 will be candiates for 11.2!!

 

/Karl

]]>Oracle 10.2.0.4 for for MAC OS X on Intel x86-64 releasedhttp://orcasoracle.squarespace.com/oracle-rdbms/2009/4/23/oracle-10204-for-for-mac-os-x-on-intel-x86-64-released.htmlKarl Reitschuster2009-04-23T14:13:16Z2009-04-23T14:13:16ZHi Reader,

i could not believe it;

but it's true. Oracle continues to develop Oracle Server on Mac OS X; and shipped now Oracle 10.2 for OSX;

Here the download link : Oracle Database 10g Release 2 (10.2.0.4.0) for MAC OS X on Intel x86-64

 

and much thanks to Oracle;

/Karl

PS.: there are some restrictions to the release - for example DbConsole would not work ...

]]>Zone Alarm !!!http://orcasoracle.squarespace.com/oracle-rdbms/2009/1/15/zone-alarm.htmlKarl Reitschuster2009-01-15T08:08:40Z2009-01-15T08:08:40ZHi,

the title is not a title of a Science Fiction film or of a Hackers memories intruding networks or a gaming title but is SUN Solaris related. SUN Solaris 5.10 introduced a virtualization concept called Zones. A Zone is like a logical/virtual machine on a SUN Server Hardware. Zones are nearer bound to resources then for example a VM like VMware or Parallels (on Mac); This keeps the frictional loss of resources lower.

At our customer site database servers are driven in SUN Solaris Zones. Resources dependend on the implementation of a zone could be shared between the Zones. Hardware is better utilized.

But one drawback is here - it's to specify performance;

]]>Terracotta - the return of OODBMS?http://orcasoracle.squarespace.com/oracle-rdbms/2008/12/12/terracotta-the-return-of-oodbms.htmlKarl Reitschuster2008-12-12T07:04:18Z2008-12-12T07:04:18ZDo you remember?

About 10 years ago OODBMS (Poet, Gemstone, Versant, ...) seemed to be starting to replace RDBMS; The idea for using OODBMS was simple - if the programming model is OOP why not persist Objects with an OODBMS directly instead of populating it's properties and class hierarchy into a couple of tables? It was the reason Oracle 8 came with object relational features; But they (OODBMS) failed for following reason:

]]>Tanel Poders - Snap it!!!http://orcasoracle.squarespace.com/oracle-rdbms/2008/11/10/tanel-poders-snap-it.htmlKarl Reitschuster2008-11-10T15:34:01Z2008-11-10T15:34:01ZOracle 12 the Green Database - Oracle 12 Ecohttp://orcasoracle.squarespace.com/oracle-rdbms/2008/10/14/oracle-12-the-green-database-oracle-12-eco.htmlKarl Reitschuster2008-10-14T11:54:55Z2008-10-14T11:54:55ZNow living in a time of financial crisis and a growing gap of natural resources
a new paradigma - a new database paragdima is needed.

For Oracle 12 i think this could be Oracle 12 Eco;

]]>Setting DBMS_STATS Environmenthttp://orcasoracle.squarespace.com/oracle-rdbms/2008/10/1/setting-dbms_stats-environment.htmlKarl Reitschuster2008-10-01T14:05:24Z2008-10-01T14:05:24ZHi Reader,
with Oracle 10g all default parameters of the DBMS_STATS package are defined as default in the data dictionary accessible with the DBMS_STATS GET_PARAM Method :

]]>Tuning Leading '%' Queries - a simple approachhttp://orcasoracle.squarespace.com/oracle-rdbms/2008/9/19/tuning-leading-queries-a-simple-approach.htmlKarl Reitschuster2008-09-19T13:42:47Z2008-09-19T13:42:47ZHi reader,

usually queries using LIKE and leading '%' cannot be indexed. So an idea would be to mirror the string content with the string reverse function to be able to put the '%' operator at the end :

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