Data Warehousing and Decision Support 1 Views CS430/630 Lecture 11 Slides based on “Database Management Systems” 3rd ed, Ramakrishnan and Gehrke Views So far, we have looked at SQL tables Relations that are persistent Physically stored in the DBMS It is also possible to have virtual relations, or views Defined […]
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WEKA Manual for Version 3-6-13 Remco R. Bouckaert Eibe Frank Mark Hall Richard Kirkby Peter Reutemann Alex Seewald David Scuse September 9, 2015 c©2002-2015 University of Waikato, Hamilton, New Zealand Alex Seewald (original Commnd-line primer) David Scuse (original Experimenter tutorial) This manual is licensed under the GNU General Public License version 2. More information about
1 INTRODUCTION A modem computer consists of one or more processors, some main memory, disks, printers, a keyboard, a mouse, a display, network interfaces, and various other input/output devices. All in all, a complex system. If every application pro grammer had to understand how all these things work in detail, no code would ever get
Database Design II: Logical Modelling FIT2094 MONASH INFORMATION TECHNOLOGY 2 Revisit – Week 3 Conceptual Model Keys only 3 Revisit – Week 3 Conceptual Model All attributes 4 Summary of Terminologies at Different Levels Conceptual Logical Physical Entity Relation Table Attribute Attribute Column Instance Tuple Row Identifier Primary Key Primary Key Relationship — — —
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() CO526 Databases Course Work 1: SQL Due in noon Friday 16th February 2018 The tables below gives details of a family history database. In the person table, people are identified by their name, and always have their gender, date of birth (dob) and place of birth (born in) recorded. In addition, each person may
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Logical Modelling Sample Solutions Customer Orders 1 Rental System Note: ● Surrogate keys of MAINT_NO and DAM_NO added to MAINTENANCE and DAMAGE ● Since the model is to be implemented in Oracle date and time can be stored in a single DATE type attribute Did you arrive at this model? Remember that every model you
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Week 2 – Relational Data Model FIT2094 Database MONASH INFORMATION TECHNOLOGY 2 Overview ▪ Relational Model ▪ Relational Algebra 3 The Relational Model ▪ Introduced by CODD in 1970 – the fundamental basis for relational DBMS’s ▪ Basic structure is the mathematical concept of a RELATION mapped to the ‘concept’ of a table (tabular representation
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FIT2094 Databases 2018 Semester 2 Assignment 1 – Database Design – Monash Cabins (MC) Monash Cabins is a chain of resorts (holiday destinations) located around Australia. At each of these resorts, MC provides cabin-based accommodation for its guests – any given resort consists of several independent cabins. A resort is located in a particular town.
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2dw 1 COMP9318: Data Warehousing and Data Mining — L2: Data Warehousing and OLAP — 2 n Why and What are Data Warehouses? Data Analysis Problems n The same data found in many different systems n Example: customer data across different departments n The same concept is defined differently n Heterogeneous sources n Relational DBMS,
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CS430/630 – Homework 2 Released February 18, Due March 02 50 points (5/100 of final grade) Instructions: The homework is due on Fri, March 02, 11:59pm. All submissions must be in digital form. You have to create an SQL script for each question (Q1.sql and Q2.sql) with your query answers, and place them in your
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