PDB

Phantom session environment in multitenant?

By Franck Pachot . In multitenant a session can switch from one container to another. There are a few restrictions such as a transaction cannot span multiple containers. But how do sessions parameters behave? It seems that there is a(…)

OCM 12c preparation: RAT in multitenant

By Franck Pachot . I have several customers that have cases where Real Application Testing can be interesting, but they don't use it because it's an expensive option. Which is why it's probably the topic listed for OCM 12c exam(…)

OCM 12c preparation: documentation

By Franck Pachot . The OCM exam advice says: Be prepared to use the non-searchable documentation during the exam, to help you with correct syntax. I've checked that I can find quickly the documentation related with each topic listed. Here(…)

OCM 12c preparation: Transportable Tablespaces

By Franck Pachot . I use transportable tablespaces a lot since 8i, here are just a few examples. Same disclaimer here as in the first post of the series: don’t expect to get those posts close to what(…)

OCM 12c preparation: Manage PDB

By Franck Pachot . Let’s see the different ways to create a PDB, with different tools. Same disclaimer here as in the first post of the series: don’t expect to get those posts close to what you(…)

OCM 12c preparation: Create CDB in command line

By Franck Pachot . This post starts a series about things I wrote while preparing the OCM 12c upgrade exam. Everything in those posts are written before taking the exam - so don't expect any clue about the exam here.

11.2.0.4 support? Don’t worry until 2017

By Franck Pachot . Customers reluctant to go to 12c before 12.2, in addition to Standard Edition contract changes when going to 12c, has lead to lot of upgrades to 11.2.0.4 but what about support? Don't worry. It's supported for(…)

Multitenant vs. schema based consolidation

By Franck Pachot . If you want to install multiple instances of a software, for example you host the ERP for several companies or subsidiaries, you have 3 solutions: have one database and multiple schema have multiple databases have(…)

12c: shutdown abort a PDB?

By Franck Pachot . Can we shutdown abort a PDB? Let’s try: SQL> show con_id CON_ID ------------------------------ 3SQL> shutdown abort; Pluggable Database closed. But is it really a shutdown abort? The shutdown abort we know in non-CDB – or(…)

Is CDB stable after one patchset and two PSU?

By Franck Pachot . There has been the announce that non-CDB is deprecated, and the reaction that CDB is not yet stable. Well. Let’s talk about the major issue I’ve encountered. Multitenant is there for consolidation. What is the major(…)