1. Relational OLAP (ROLAP): Star Schema basedThe ROLAP is a type of data processing model; it’s specifically designed to work with large size data based on multidimensionality data model. It follows relational database principles. Hence, data stores in relational tables and data ac...
Kimball follows a different approach in which dimensional data marts are created first. The data sources are then identified and fetched from various sources and loaded. The star schema is the indispensable factor of dimensional modeling. Multiple such schemas can exist in a single model. To organi...
It gives the context surrounding of any business process. Conclusion- Dimension Table This is an integral part of data modelling. It is used in star orsnowflake schema. It contains the dimensions, keys and values of the attributes of the fact table. There are different types of which are us...
these topologies mainly differ in the physical and logical arrangement of the connected devices. The star topology organises the devices around the central controller known as the hub. On the other