Oracle 12c – DB_UNKNOWN in ASM
Have you ever noticed a DB_UNKNOWN directory in your ASM structure? It usually happens in combination with spfile creation in ASM, or with RMAN spfile restores to ASM. The correct location is...
View ArticleOracle 12cR2: Pluggable database relocation
Here is, in my opinion, the most beautiful feature of the multitenant architecture. You know how I love Transportable Tablespaces. But here: No need to put the source in read/only No need to...
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Oracle 12cR2: MAX_PDBS
Oracle database 12.2 is there on the Database Cloud Service, in multitenant. In EE High Performance or Extreme Performance, you have the multitenant option: you can create 4096 pluggable database...
View Article12cR2 has new SQL*Plus features
12cR2 is there. What’s new in SQL*Plus? For sure, you can’t expect lot of things from it. The new command line is the SQL*Developer sqlcl which aims to be 100% compatible with SQL*Plus with lot of more...
View Article12cR2 new index usage tracking
A common question is: how to know which indexes are not used, so that I can drop them. If you tried to use index monitoring you probably have seen the limits of it which make it difficult to use. It...
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12cR2 Single-Tenant: Multitenant Features for All Editions
Now that 12.2 is there, in the Oracle Public Cloud Service, I can share the slides of the presentation I made for Oracle Open World: 12cR2 Single-Tenant: Multitenant Features for All Editions from...
View Article12cR2: CREATE_FILE_DEST for PDB isolation
Two years ago I filled an OTN idea to ‘Constrain PDB datafiles into specific directory’ and made it an enhancement request for 12c Release 2. When you provision a PDB, the PDB admin can create...
View Article12cR2: Upgrade by unplug/plug in the Oracle Cloud Service
12.2 is available in the Oracle Public Cloud DBaaS. If you have a 12.1 DBaaS service, there’s no button to upgrade it. I’ll describe all the possible upgrade procedures and the first one, and the most...
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12cR2: How long to upgrade a PDB?
In the previous post I described how simple it is to unplug a PDB and plug it into a newer version CDB. One goal of dictionary separation in the multitenant architecture is to keep system objects on...
View Article12cR2: Upgrade by remote clone – workaround ORA-17630 in DBaaS
Easier than unplug/plug, you can move pluggable databases with remote cloning. It’s the same idea but you don’t have to manage the files yourself: the are shipped through database link. However, this...
View Article12cR2: Upgrade by remote clone with TDE in DBaaS
Upgrading from 12.1 to 12.2 is easy in Oracle Public Cloud DBaaS because you are in multitenant. Here is how to clone a 12.1 PDB to 12.2 service. I’ve a service HP121 in 12.1.0.2 with one pluggable...
View ArticleOracle 12c – Finding the DBID – The last resort
The DBID is a very important part for Oracle databases. It is an internal, uniquely generated number that differentiates databases. Oracle creates this number automatically as soon as you create the...
View ArticleEncryption in Oracle Public Cloud
Oracle Transparent Data Encryption is available without option on the Oracle Public Cloud: Standard Edition as well as Enterprise Edition (EE, EE-HP EE-EP, ECS). More than that, the DBaaS enforces TDE...
View ArticleOracle 12c DataGuard – Insufficient SRLs reported by DGMGRL VALIDATE DATABASE...
I have setup a DataGuard environment and followed the instructions from Oracle to create the Standby Redo Logs. The Standby Redo Logs have to be the same size as the Online Redo Logs. If not, the RFS...
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UKOUG Super Sunday
Today at the UKOUG Super Sunday in Birmingham, I had the opportunity to assist at interesting conferences. The first presentation was about Oracle RAC internals and its new features in version...
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Multitenant internals – Summary
Today at UKOUG TECH16 conference I’m presenting the internals of the new multitenant architecture: 12c Multitenant: Not a Revolution, Just an Evolution. My goal is to show how it works, that metadata...
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UKOUG 2016 Day 2
Today I assisted at a first session about one of my favorite tool: Upgrade to EM 13c now. The session was presented by Phil Gric from Red Stack Tech. At the begining he described us the most common...
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UKOUG 2016 DAY 3
Today at UKOUG 2016, the Cloud has won against the sun :=) The first sesssion I attended this morning was animated by Kamil Stawiarski from ORA 600 company: Securing the database againt Unauthorized...
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UKOUG 2016 DAY 4
Today is the last day at UKOUG in Birmingham; the first session I attended this morning was presented by Julian Dyke about installing and upgrading Oracle 12c release 2 Grid infrastructure and RAC. He...
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Oracle 12c – RMAN and Unified Auditing – Does it really work?
The new Oracle Unified Auditing feature, audits RMAN operation per default as soon as you relink your Oracle binary and start your instance. A quite cool new feature, because it allows me to audit RMAN...
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