12.2

Can you open PDB$SEED read write?

By Franck Pachot . If you are in multitenant, you probably already felt the desire to open the PDB$SEED in READ WRITE mode. Can you open PDB$SEED read write yourseld? Yes and No. Should you open PDB$SEED read write yourself?(…)

12cR2 partial PDB backup

By Franck Pachot . I had a recent question about the following mention from the 12cR2 Multitenant book, about Partial PDB backups: . Here is an example in 12.2 with local undo to illustrate the(…)

12cR2 RMAN> REPAIR

By Franck Pachot . Do you know the RMAN Recovery advisor? It detects the problems, and then you: RMAN> list failure; RMAN> advise failure; RMAN> repair failure; You need to have a failure detected. You can run Health Check if(…)

12cR2 DML monitoring and Statistics Advisor

By Franck Pachot . Monitoring DML to get an idea of the activity on our tables is not new. The number of insert/delete/update/truncate since last stats gathering is tracked automatically. The statistics gathering job use it to list and prioritize(…)

Purging Unified Audit Trail in 12cR2

By Franck Pachot . A good thing from 12.2 is that the implementation of Unified Audit Trail has changed a little. It was stored in a weird CLI_SWP$ table but now we have a normal partitioned table named AUD$UNIFIED. In(…)

Oracle 12cR2 on Windows: Virtual Accounts

By Franck Pachot . Oracle Database 12.2.0.1 is released for Windows, just 2 weeks after the Linux release, and this is a very good news. Let's see something new you will encounter in the first screens of Oracle 12.2 installer.

12cR2: TNS_ADMIN in env.ora

By Franck Pachot . The network files (sqlnet.ora, tnsnames.ora, lsnrctl.ora) are read by default from ORACLE_HOME/network/admin but you may have several Oracle installations, and want only one place for those files. Then you can use TNS_ADMIN environment variable. But are(…)

Oracle 12cR2, RAC, Cloud, ACFS, PDB thin clones and asmadmin

By Franck Pachot . In the Oracle Public Cloud, fast provisioning gets all its meaning when creating a RAC database service: in one hour you can get an operational highly available multitenant database. You can even create it in Data(…)

Oracle 12cR2: Online tablespace encryption

By Franck Pachot . By default, all data is visible in the datafiles. Transparent Tablespace Encryption (TDE) can be used to get them encrypted. It requires Enterprise Edition plus Advanced Security Option. Except in the Oracle Cloud when it is(…)

12cR2: Recover nonlogged blocks after NOLOGGING in Data Guard

By Franck Pachot . You can accept to do NOLOGGING operations on bulk loads or index build according that you do a backup just after, and that your recovery plan mentions how to load the data again in case(…)