suresh What is a cube in SSAS and how is it different from a tabular model?
In SQL Server Analysis Services (SSAS), a cube is a data structure that allows for multidimensional analysis of data. It organizes data into dimensions and measures, providing a way to analyze large volumes of data efficiently.
On the other hand, a tabular model in SSAS is a data structure that is based on relational modeling techniques. It organizes data into tables and columns, similar to a traditional relational database.
The main difference between a cube and a tabular model is in their underlying data storage and calculation engines. A cube uses multi-dimensional OLAP (Online Analytical Processing) technology, which allows for complex calculations and aggregations, while a tabular model uses an in-memory columnar database engine, which is optimized for faster querying of data.
Therefore, cubes are more suitable for complex analytical scenarios where multidimensional analysis is required, while tabular models are ideal for simpler, more straightforward analysis of data.
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