Using Temp instead of Undo for GTTs Mustafa, 2019-06-262019-07-03 Hello everyone, with 12c we have a very nice new option; Temp Undo for GTTs (Global Temporary Tables). as you know temporary tables are used for storing temporary data. those tables data are stored in TEMP tablespace so they are not vital. Temporary tables can generates very little redo data… Continue Reading
EM Express Basic Troubleshooting Mustafa, 2019-06-092019-06-10 After 12c, unfortunately, we lost Enterprise Manager Console but we have pre-installed EM Express now. if you remember EM console you would install it with emca utility with many parameters. EM express save you from this because it is embedded. you just need to set a few things in your… Continue Reading
How to Get Your SID? USERENV vs V$MYSTAT! Mustafa, 2019-05-232020-07-05 Hello everyone, This is an easy question. How to find your own session SID and when you ask Google for it, you will find many answers. While reading some documents, I realized that some Gurus are using V$MYSTAT to get current SID: Oracle PL/SQL select sid from v$mystat where rownum=1; 1 select sid from v$mystat where rownum=1; I always prefer USERENV(‘SID’) context to get… Continue Reading
Goodbye Log Triggers Welcome Flashback Data Archive Mustafa, 2019-03-022020-10-25 Hello, I would like to talk about Flashback Data Archive (or Flashback Archive – FBA) in 12c. FBA was introduced in 11g. It is not new but it has very important new features that allow us to use FBA very efficiently and for free. I would like to talk about… Continue Reading