Oracle 10g / 11g is ROLAP/MOLAP/HOLAP?

Hi Greets,
Can any one please tell me whethe the available version of Oracle 10G /11g OLAP
is ROLAP or MOLAP or HOLAP.
Thanks
Anandraj

The OLAP Option is highly integrated with the Oracle database by this stage (11.1). Metadata is stored in the data dictionary and the primary access mechanism is SQL. So traditional terms like ROLAP, MOLAP, and HOLAP are getting hard to apply. But at a broad level you could say the following.
ROLAP was supported in 10g based on CwM metadata and the Java OLAP API as query tool. (Both Discoverer for OLAP and the Excel Add-In use the Java OLAP API.) CwM was deprecated in 10.2 and ROLAP in general has received no new development for years. So while it technically still works in 11g, I would not recommend it.
MOLAP (i.e. the Analytic Workspace) is supported in both 10g and 11g. In 10g the metadata is managed by AWXML, and in 11g it is managed using by the OLAP API. In both cases you can access the data via SQL, the OLAP API, or OLAP DML. In 11g you can also integrate with the Materialized View system.
The MOLAP implementation is faster and more scalable than the ROLAP version, and all development and future plans centre around MOLAP.
David

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