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mds:dsd:start [09/11/2021 alle 12:20 (2 anni fa)]
Salvatore Ruggieri [Class calendar]
mds:dsd:start [04/12/2021 alle 17:55 (2 anni fa)]
Salvatore Ruggieri
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 =====Mandatory teaching material ===== =====Mandatory teaching material =====
  
-  * **[DW]** A. Albano, S. Ruggieri. [[http://patterns.di.unipi.it/bsd/DWessential-2021.pdf|Decision Support Databases Essentials]], University of Pisa, 17 February 2021.  +  * **[DW]** A. Albano, S. Ruggieri. [[http://fondamentidibasididati.it/wp-content/uploads/2020/11/DWessential-2021-C3-12-21.pdf|Decision Support Databases Essentials]], University of Pisa, 2 December 2021.  
-  * **[DB]** A. Albano. [[http://fondamentidibasididati.it/DBEssential-2021.pdf|DB Essentials]], University of Pisa, 1 December 2020. This is a self-contained excerpt (in English) from[[http://fondamentidibasididati.it|Fondamenti di basi di dati]] (in Italian, free download).+  * **[DB]** A. Albano. [[http://fondamentidibasididati.it/wp-content/uploads/2020/11/DBEssential-2021-C30-11-21.pdf|DB Essentials]] and [[http://fondamentidibasididati.it/wp-content/uploads/2020/11/DBEssential-2020-Soluzioni-C30-11-21.pdf|solutions to exercises]], University of Pisa, 1 December 2020. This is a self-contained excerpt (in English) from the book [[http://fondamentidibasididati.it|Fondamenti di basi di dati]] (in Italian, free download).
   * Examples of [[http://patterns.di.unipi.it/bsd/DSDsamples.pdf|written exams with solutions]] and [[http://patterns.di.unipi.it/bsd/dsd2020sample.pdf|written exam]].   * Examples of [[http://patterns.di.unipi.it/bsd/DSDsamples.pdf|written exams with solutions]] and [[http://patterns.di.unipi.it/bsd/dsd2020sample.pdf|written exam]].
 =====Software===== =====Software=====
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 ^  Date  ^  Hour  ^  Room  ^  Notes  ^ ^  Date  ^  Hour  ^  Room  ^  Notes  ^
-|  19/11/2021  |  9:00 - 11:00  |  I-Lab [[https://didattica.di.unipi.it/en/appelli-straordinari/|Extra-ordinary exam]] |+|  18/1/2022  |  14:00 - 16:00  |  TBD   | 
 +|  8/2/2022   14:00 16:00  |  TBD |   |
  
 <html> <html>
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 **2021-17.** //Tuesday 9 November 2021, 9-11//  **[DW: 5.5-5.6]** [[http://patterns.di.unipi.it/bsd/video/dsd17_20211109.mp4|rec17 audio-video (.mp4)]] **2021-17.** //Tuesday 9 November 2021, 9-11//  **[DW: 5.5-5.6]** [[http://patterns.di.unipi.it/bsd/video/dsd17_20211109.mp4|rec17 audio-video (.mp4)]]
  
-Analytic Functions with the use of moving windows. Examples. Exercises on Analytic SQL. [[http://patterns.di.unipi.it/bsd/dsd.17.assignments.pdf|Exercises during the lesson and at home]] (full solutions will be published here next week).+Analytic Functions with the use of moving windows. Examples. Exercises on Analytic SQL. [[http://patterns.di.unipi.it/bsd/dsd.17.assignments.pdf|Exercises during the lesson and at home]] and [[http://patterns.di.unipi.it/bsd/dsd.17.solutions.txt|solutions]].
  
-**2021-18.** //Friday 12 November 2021, 16-18// **[DB: 6.1-6.6, 6.8, 7.1-7.2]** +**2021-18.** //Friday 12 November 2021, 16-18// **[DB: 6.1-6.6, 6.8, 7.1-7.2]** [[http://patterns.di.unipi.it/bsd/video/dsd18_20211112.mp4|rec18 audio-video (.mp4)]]
  
 Recalls of relational DBMS internals: Storage, Indexing and Query Evaluation. Physical operators and physical plans for projection, selection, joins and grouping. Examples. Recalls of relational DBMS internals: Storage, Indexing and Query Evaluation. Physical operators and physical plans for projection, selection, joins and grouping. Examples.
  
-**2021-19.** //Tuesday 16 November 2021// **[DW: 6.1-6.4]** +**2021-19.** //Tuesday 16 November 2021, 9-11// **[DW: 6.1-6.4]** [[http://patterns.di.unipi.it/bsd/video/dsd19_20211116.mp4|rec19 audio-video (.mp4)]]
  
 Data Warehouse Systems: Special-Purpose Indexes and Star Query Plan. Bitmap indexes. Join indexes. Star queries optimization and query plans. Examples. Table partitioning. Data Warehouse Systems: Special-Purpose Indexes and Star Query Plan. Bitmap indexes. Join indexes. Star queries optimization and query plans. Examples. Table partitioning.
  
-**2021-20.** //Friday 19 November 2021, 16-18//  +**2021-20.** //Friday 19 November 2021, 16-18// **[DW: 7.1-7.7]**[[http://patterns.di.unipi.it/bsd/video/dsd20_20211119.mp4|rec20 audio-video (.mp4)]] 
 + 
 +The problem of materialized views selection. The lattice of views and the greedy algorithm HRU for the selection of materialized views. Examples. Other algorithms for the choice of the views to materialize with a workload and dimensional hierarchies.  [[http://patterns.di.unipi.it/bsd/dsd.20.assignments.pdf|Exercises at home for the lesson 2021-21]]. 
 + 
 +**2021-21.** //Tuesday 23 November 2021, 9-11//  **[DW: 8.1-8.2, DB: 3.5.1-3.5.4]** [[http://patterns.di.unipi.it/bsd/video/dsd21_20211123.mp4|rec21 audio-video (.mp4)]] 
 + 
 +Recalls of functional dependency properties and how they are used to reason about the properties of the result of a query. Properties of the group-by operator. 
 + 
 +**2021-22.** //Friday 26 November 2021, 16-18// **[DW: 8.3-8.6]** [[http://patterns.di.unipi.it/bsd/video/dsd22_20211126.mp4|rec22 audio-video (.mp4)]] 
 + 
 +The problem of evaluating the group-by before the join operator. First case: Invariant grouping. Examples. Other cases: double grouping, grouping and counting. Examples with star queries. 
 + 
 +**2021-23.** //Tuesday 30 November 2021, 9-11// **[DW: 9.1-9.4]** [[http://patterns.di.unipi.it/bsd/video/dsd23_20211130.mp4|rec23 audio-video (.mp4)]]
  
-...+The problem of query rewrite to use a materialized viewHypothesis and two approaches: With a compensation on the logical view plan, and with a transformation of logical query planExamples.
  
 +**2021-24.** //Friday 3 December 2021, 16-18// **[DW: 6.5-6.8]**  [[http://patterns.di.unipi.it/bsd/video/dsd24_20211203.mp4|rec24 audio-video (.mp4)]]
  
 +Data Warehousing trends: column-oriented DW, main-memory DW, Big Data framework.
  
  
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   * [[mds:dsd:2020|Decision Support Databases  A.Y. 2020/21]]   * [[mds:dsd:2020|Decision Support Databases  A.Y. 2020/21]]
-  * [[mds:dsd:2019|Decision Support Databases  A.Y. 2019/20]] 
-  * [[mds:dsd:2018|Decision Support Databases  A.Y. 2018/19]] 
  
  
mds/dsd/start.txt · Ultima modifica: 27/03/2024 alle 13:18 (41 ore fa) da Salvatore Ruggieri