Oracle Team

Dbvisit replicate when you flashback the target

By Franck Pachot . I had a quick question today about Dbvisit replicate as a solution to feed an Operational Data Store. The need is to run some end-of-month jobs on data from a specific state. The best way is(…)

12c online move datafile in same filesystem.

By Franck Pachot . On Linux, when you move a datafile, with "mv" within the filesystem it's just a rename. There is no copy. In 12c you can move a datafile online where oracle takes care of the move at(…)

Oracle 12c – Difference between ‘%F’ #default and ‘%F’

By William Sescu Do you see any differences between these two RMAN SHOW commands? RMAN> SHOW CONTROLFILE AUTOBACKUP FORMAT; RMAN configuration parameters for database with db_unique_name OCM121 are: CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default(…)

Oracle 12c – Automatic Control File Backups

By William Sescu By default, automatic control file backups are disabled (even with 12c), maybe for performance reasons. RMAN> SHOW CONTROLFILE AUTOBACKUP; RMAN configuration parameters for database with db_unique_name OCM121 are: CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default And also good(…)

Oracle 12c – When the RMAN Dummy Instance does not start up …

By William Sescu Not too often, but sometimes you might run into a situation when you lose everything, your DB Files, your Controlfiles and even your spfile. In situations like that, you need to restore first your spfile, then your(…)

Oracle 12c – When did my row change?

By William Sescu My good old DEPT table always had 4 rows with 4 different departments. However, I have noticed that a new row was inserted into the DEPT table and the row 50 popped up, and I would like to(…)

12c GTT private statistics and cursor invalidation

By Franck Pachot . Short summary of this post is that rolling invalidation do not occur when you gather statistics on Global Temporary Tables in 12c that have session statistic scope (which is the default) and this may cause too(…)

2 x ODA X6-2S + Dbvisit Standby: Easy DR in SE

By Franck Pachot . What's common with Standard Edition, simplicity, reliability, high performance, and affordable price? Dbvisit standby can be an answer because it brings Disaster Recovery to Standard Edition without adding complexity ODA Lite (the new X6-2S and 2M)(…)

Enterprise Manager 13.1.0.0 does not display correct values for memory

I recently had problems with Enterprise Manager 13.1.0.0, receiving such alerts: EM Event Critical hostname Memory Utilization is 93,205 % crossed warning (80%) or critical (90%) When we have a look at the EM 13c console for the host:(…)

Datawarehouse ODS load is fast and easy in Enterprise Edition

By Franck Pachot . In a previous post, tribute to transportable tablespaces (TTS), I said that TTS is also used to move data quickly from operational database to a datawarehouse ODS. For sure, you don't transport(…)