COSC2406/2407 Objectives Database Systems Access your AWS linux instance Installing MongoDB on your linux instance Installing Apache Derby on your linux instance AWS linux instance Week 2 Lab Tasks We will be using the Amazon AWS cloud as our main teaching environment for the Database Systems course: ● Every student in the course will be […]
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COMP9318: Data Warehousing and Data Mining — L7: Classification and Prediction — Data Mining: Concepts and Techniques 1 n Problem definition and preliminaries Data Mining: Concepts and Techniques 2 ML Map Data Mining: Concepts and Techniques 3 Classification vs. Prediction n Classification: n predicts categorical class labels (discrete or nominal) n classifies data (constructs a
COMP9321 Data Services Engineering Term 1, 2021 Week 1: Data Access Data Lakes and Data Pipelines 2 Data Services – what is it about? Two sides of a coin: Require specific access techniques • Data integration/aggregation from multiple sources (data prep) • Data publication for consumer access (API) 3 4 Challenges from implementation view point
COSC2406/2407 Database Systems Course Introduction Xiangmin (Emily) Zhou RMIT University Room : 14.11.04 Online Consultation via Collaborate Ultra(no appointment required): 10:20-11.20am Thursdays Email : xiangmin.zhou@rmit.edu.au Course Overview Xiangmin (Emily) Zhou (RMIT University) COSC2406/2407 Database Systems Course Overview 1 / 39 Acknowledgement of Country Ngarara Place, RMIT City campus RMIT University acknowledges the Kulin Nations as
COMP9321: Data services engineering Term1, 2021 Week 3: Data Visualisation (Principles and Basic Techniques) Early Babylonian world map (600 BC) These concentric circles that represent the ocean, named “bitter water” or the “salt sea.” an early interpretation of the layout of the world Network Attacks Visualisation isn’t just about graphics Highly competent visualisation “tricks” can
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COMP9315 21T1 Exercises 08 Query Optimisation and Execution DBMS Implementation [Show with no answers] [Show with all answers] 1. 2. Consider the following tables relating to trips on a suburban bus network Trip(fromPlace:integer, toPlace:integer, tripDate:date) 3. Place(placeId:integer, address:string, suburb:string) 4. a. Write an SQL query that returns all of the addresses in Randwick that
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2021/4/28 Query Processing Query Processing Query Processing Terminology Variations >> COMP9315 21T1 ♢ Query Processing ♢ [0/6] https://cgi.cse.unsw.edu.au/~cs9315/21T1/lectures/qry-processing/slides.html 1/8 2021/4/28 Query Processing ❖ Query Processing ∧ >> COMP9315 21T1 ♢ Query Processing ♢ [1/6] https://cgi.cse.unsw.edu.au/~cs9315/21T1/lectures/qry-processing/slides.html 2/8 2021/4/28 Query Processing ❖ Query Processing (cont) A query in SQL: states what kind of answers are required (declarative)
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COMP9315 21T1 – Exercises 04 COMP9315 21T1 Exercises 04 Implementing Sorting and Projection DBMS Implementation [Show with no answers] [Show with all answers] You have an unsorted heap file containing 4500 records and a select query is asked that requires the file to be sorted. The DBMS uses an external merge-sort that makes efficient
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COMP9315 21T1 Exercises 09 Transaction Processing: Concurrency, Recovery DBMS Implementation [Show with no answers] [Show with all answers] 1. 2. Consider the following transaction T1: R(X), R(X) a. Give an example of another transaction T2 that, if run concurrently to transaction T1 without some form of concurrency control, could interfere with T1 to produce
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2021/4/28 Relational Operations Relational Operations DBMS Architecture (revisited) Relational Operations Cost Models Query Types >> COMP9315 21T1 ♢ Relational Operations ♢ [0/11] https://cgi.cse.unsw.edu.au/~cs9315/21T1/lectures/relops/slides.html 1/13 2021/4/28 Relational Operations ❖ DBMS Architecture (revisited) Implementation of relational operations in DBMS: ∧ >> COMP9315 21T1 ♢ Relational Operations ♢ [1/11] https://cgi.cse.unsw.edu.au/~cs9315/21T1/lectures/relops/slides.html 2/13 2021/4/28 Relational Operations > ❖ Relational Operations
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