Course Material: https://dbdmg.polito.it/dbdmg_web/2023/data-science-and-database-technology-2023-2024/

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Question:

File: DSTBD_4

Subject: DATA WAREHOUSE: OLAP

Page: 57

Question: I can’t understand the difference between this group_by example and the first example provided in page 30.

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Question:

File: Lab 1

Subject: Extended SQL

Question: 8

Question: I can’t understand when to partition and when to use grouping sets?

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SESSION NOTES