A histogram is a chart that shows frequencies for equal width intervals of values of a metric variable. A company wants to know how monthly salaries are distributed over 1,110 employees having operational, middle or higher management level jobs. The screenshot below shows what their raw data look like.
The snowflake schema is a variation of the star schema, featuring normalization of dimension tables. In computing, a snowflake schema is a logical arrangement of tables in a multidimensional database such that the entity relationship diagram resembles a snowflake shape. The snowflake schema is represented by centralized fact tables which are connected to multiple dimensions..
Design for the cloud On-premise solutions are too complex, too expensive and getting more so each day. We developed Snowflake as a service from the ground up for the cloud, capitalizing on the leading architecture and technology of Amazon Web Services. Support modern data and applications People want to focus on deriving insight from data â not configuring, tuning, and managing a data warehouse.