1/59 Week 8 Workshop – Query Processing and Optimisation 2/59 Housekeeping 1 Assignment 2 (Database Theory) for both COMP2400/6240 students: The submission deadline is 23:59, Oct 12, 2021. This assignment must be done individually (no group work). Please join the special drop-in sessions if you need any clarifications. 2 All the labs on Oct 4 […]
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Entity-Relationship Model – Part 4 From ER to Relations Recap – Data Modeling Requirements ER diagram Relational database schema Relational DBMS Conceptual level Logical level Physical level ER design is subjective: There are many ways to model a given scenario. Analyzing alternative schemas is important. Constraints play an important role in designing a good database.
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Entity-Relationship Model – Part 1 Database Design Process IT Projects1 2011 2012 2013 2014 2015 SUCCESSFUL 29% 27% 31% 28% 29% CHALLENGED 49% 56% 50% 55% 52% FAILED 22% 17% 19% 17% 19% 1 CHAOS report by Standish Group, 2015 IT Projects1 2011 2012 2013 2014 2015 SUCCESSFUL 29% 27% 31% 28% 29% CHALLENGED 49%
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Sample Final 2006 THE AUSTRALIAN NATIONAL UNIVERSITY SAMPLE Second Semester Examination – not a real one RELATIONAL DATABASES (COMP2400/6240) Reading Time: 15 minutes Writing Time: 2 hours for COMP2400 2½ hours for COMP6240 Permitted Materials: One A4 sheet with notes on both sides Notes may be handwritten or printed/typed The A4 sheet may be a
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9781292025605.pdf Fundamentals of Database Systems Ramez Elmasri Shamkant Navathe Sixth Edition Pearson Education Limited Edinburgh Gate Harlow Essex CM20 2JE England and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsoned.co.uk © Pearson Education Limited 2014 All rights reserved. No part of this publication may be reproduced, stored in a
1/51 Welcome to Week 7 Workshop 2/51 Housekeeping The mark and feedback on Assignment 1 (SQL) is available on Wattle. Refer to the sample solutions along with the common issues. Test your queries on moviedb2021 instead of moviedb. The specification of Assignment 2 (Database Theory) will be available on Sep 28. The submission via Wattle
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COMP3222/9222 Digital Circuits & Systems 4. Combinational Building Blocks Objectives • Learn about commonly used combinational sub- circuits – Multiplexers, used for signal selection and implementing general logic functions – Encoders, decoders and code converters • Learn about the key VHDL constructs used to specify combinational circuits – Non-simple, concurrent assignment statements – Sequential statements
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COMP2511 JUnit Prepared by Dr. Ashesh Mahidadia Software Testing v Different types of testing: o Object Oriented Design document describes responsibilities of classes and methods (APIs) à Unit Testing o System Design Document à Integration Testing o Requirements Analysis Document à System Testing o Client Expectation à Acceptance Testing v Unit Testing is also useful
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COMP3222/9222 Digital Circuits & Systems 8. Digital System Design Objectives • Apply design techniques to comprehensive digital design problems – Consider the datapath components needed, the finite state machines required for their control and their description in VHDL • Learn how digital systems comprising datapaths and control circuits can be derived from an ASM chart
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the combination of flit buffer flow control methods and latency insensitive protocols is an effective solution for networks on chip noc since they both rely on backpressure the two techniques are easy to combine while offering complementary advantages low complexity of router design and the ability to cope with long communication channels via automatic wire