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Lead Data Scientist Interview Question:
Please explain star schema?
Submitted by: MuhammadIt is a traditional database schema with a central table. Satellite tables map IDs to physical names or descriptions and can be connected to the central fact table using the ID fields; these tables are known as lookup tables and are principally useful in real-time applications, as they save a lot of memory. Sometimes star schemas involve several layers of summarization to recover information faster.
Submitted by: Muhammad
Submitted by: Muhammad
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