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CS 523 Database Topics

CS 523 Database Topics. Exam Reviews. Exam #1. Class Introduction Definitions Introduction to OLAP processing Introduction to Data Mining Processing Data Warehousing Differences between a data warehouse and a transactional database Data organization – the star schema Bit Map Indexes.

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CS 523 Database Topics

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  1. CS 523 Database Topics Exam Reviews

  2. Exam #1 • Class Introduction • Definitions • Introduction to OLAP processing • Introduction to Data Mining Processing • Data Warehousing • Differences between a data warehouse and a transactional database • Data organization – the star schema • Bit Map Indexes

  3. Exam #1 (cont) • Introduction to ETL • Data Preprocessing Activities • SQL Commands to copy data • Extraction/transformation/load • Sqlldr • Externally stored tables • Dblinks • OLAP Introduction • OLAP in SQL • Rollups and Cubes

  4. Exam #2 • More OLAP in SQL • Partitioning • Analytical functions (cume_dist, ntile, etc.) • Introduction to data mining • No prediction – time series, clustering • Predict one thing – decision trees, value prediction • Predict everything – association, sequential patterns.

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