OLAP(ONLINE ANALYTICAL PROCESSING):It is a set of specifications which allows the client applications in retriving the data from the DataWareHouse for analytical process.

There r 4 types of OLAPS we have

 1.DOLAP(DESKTOP OLAP)

2.ROLAP(RELATIONAL OLAP)

3.MOLAP(MULTIDIMENSTIONAL OLAP)

4.HOLAP(HYBRID OLAP)

1.DOLAP: The OLAP which communicates with DESKTOP DATABASES to retrive the data is called DOLAP.

ex:cognos,business object tools.

2.ROLAP: The OLAP which communicates with RELATIONAL DATABASES to retrive the data is called ROLAP.

ex:COGNOS REPORT NET,BUSINESS OBJECTS,MICROSTRATAGY,HYPERION

3.MOLAP: The OLAP which communicates with MULTI DIMENSIONAL DATABASES to retrive the data is called MOLAP.

ex:COGNOS ,HYPERION

4.HOLAP: The OLAP  which uses the combined features of ROLAP,MOLAP is called HOLAP.

ex:COGNOS  

hai vishwanatha

   Report net belongs to ROLAP, beacause it communicates with the relational sources