9/1/2021 1 Introduction to Data Science Lecture 4 Semi-Structured Data, XML CIS 5930/4930 – Fall 2021 Exam • One Midterm exam – Proctored, online (Canvas) – November 3 during regular scheduled lecture time • 3.05 – 4.20pm EST – To be done individually – Multiple choice test – Closed book, notes – A week before […]
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1/56 Week 9 Workshop – Database Security 2/56 Qing Wang Website: http:// users.cecs.anu.edu.au/∼u5170295/ https:// graphlabanu.github.io/ website/ Zoom drop-in session: Tuesday 2pm-3pm (Week 10 to Week 12) Research areas: Data management and analytics Data mining Deep learning on graphs Graph algorithms. http://users.cecs.anu.edu.au/~u5170295/ https://graphlabanu.github.io/website/ 3/56 House Keeping Lab 8 (Database programming) in Week 10 is optional –
1/56 Week 9 Workshop – Database Security 2/56 Qing Wang Website: http:// users.cecs.anu.edu.au/∼u5170295/ https:// graphlabanu.github.io/ website/ Zoom drop-in session: Tuesday 2pm-3pm (Week 10 to Week 12) Research areas: Data management and analytics Data mining Deep learning on graphs Graph algorithms. http://users.cecs.anu.edu.au/~u5170295/ https://graphlabanu.github.io/website/ 3/56 House Keeping Lab 8 (Database programming) in Week 10 is optional –
SQL – Part 4 Data Manipulation Language (Advanced SQL Queries) Advanced SQL Queries – Set Operations SQL incorporates several set operations: UNION (set union) and INTERSECT (set intersection), and sometimes EXCEPT (set difference / minus). Set operations result in return of a relation of tuples (no duplicates). Set operations apply to relations that have the
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1/73 Week 2 Workshop 2/73 Housekeeping 1 Please attend the lab that you had registered for and the lab signup had been finalised. Lab swaps are not allowed unless there is a special consideration and an approval. 2 From Week 2 to Week 11, weekly online quiz is always due 23:59 pm Thursday after you
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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
SQL – Part 2 Data Manipulation Language (Insert, Update, Delete) Data Manipulation Language (DML) Data Manipulation Language INSERT UPDATE DELETE SELECT Data Manipulation Language – Insert, Update, Delete The INSERT statement is used to add tuples into a relation. INSERT INTO table_name [(attribute_name,…,attribute_name)] VALUES (value,…,value),…,(value,…,value); The UPDATE statement is used to modify attribute values of
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SQL – Part 3 Data Manipulation Language (Simple SQL Queries) Simple SQL Queries SQL provides the SELECT statement for retrieving data from a database. The SELECT statement has the following basic form: SELECT attribute_list FROM table_list [WHERE condition] [GROUP BY attribute_list [HAVING group_condition]] [ORDER BY attribute_list]; Note: Only SELECT and FROM are mandatory. The symbol
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