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Note: All the posts are based on practical approach avoiding lengthy theory. All have been tested on some development servers. Please don’t test any post on production servers until you are sure.

Thursday, June 04, 2015

12c: Zero App downtime using EBR

EBR, Edition-based redefinition allows multiple versions of PL/SQL objects, views and synonyms in a single schema, which makes it possible to upgrade the database component of an application while it is in use. An edition (nonschema object) is effectively a version label that can be assigned to all editionable objects in a schema. In Oracle 11gR2, if editioning was enabled for a user and you created a new object that was an editionable object in that user's schema, the object you created was automatically editionable. It was not possible to create non-editionable objects of one of these types in an edition enabled schema.

Wednesday, June 03, 2015

12c: Managing PDBs

Managing a pluggable database (PDB) involves a subset of the tasks required to administer a non-CDB. In this subset of tasks, most are the same for a PDB and a non-CDB, but there are some differences. A PDB administrator is limited to managing a single PDB and cannot affect other PDBs in the multitenant container database (CDB).

Tuesday, June 02, 2015

12c: ORA-65114: space usage in container is too high

ORA-65114: space usage in container is too high
Cause: Space usage in the current container exceeded the value of MAX_PDB_STORAGE for the container.
Action: Specify a higher value for MAX_PDB_STORAGE using the ALTER PLUGGABLE DATABASE statement.