2023 Exercise 1 1 Fill in with records the tables described in the schema from Annex 1 | Assignment Collections
Computer Science 2023 Exercise 1 1. Fill In With Records The Tables Described In The Schema From Annex 1 (draw The Tables With The Data Your Data In Them). 2. Write An SQL Select Query, Which Applies The Cube Operator On All 3 Dimensions, Cube(Week, Store, Group) Of The Data
2023 Exercise 1 1 Fill in with records the tables described in the schema from Annex 1 | Assignment Collections
Exercise 1
1. Fill in with records the tables described in the schema from Annex 1 (draw the tables with the data your data in them).
2. Write an SQL select query, which applies the Cube operator on all 3 dimensions, Cube(Week, Store, Group) of the database in Annexe1 with the records you have filled at Exercise 1, and then present the result of the query as a table.
3. Write an SQL query which retrieves the top 3 selling product groups in February, in Braunschweig.
4. Write an MDX query performing the same task as exercise 1.3 (the previous exercise).
Exercise 2
5. What kind of a schema is presented in Annex 1?
6. In which case should we consider migrating from a snowflake schema to a star schema?
7. Considering that the product dimension is subject to often change, how would you transform (draw) the schema in Annex 1, into a Starflake one?
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