CS3402 Database Systems Tutorials CS3402 Tutorial 7: 1. If the database consists of 512 records and the blocking factor is 8. On average, how many blocks needed to be searched to if the records are in unordered format and ordered format? 2. Suppose that we use hashing to organize a PRODUCT file containing records with […]
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Lab 1 – Table Definition, Manipulation and Simple Queries 1. INTRODUCTION Oracle is a relational database management system (DBMS) that stores, manages, and manipulates data. It consists of the database manager, the Database Administrator utility and other user utilities. The query language which will be used is called SQL (an acronym for Structured Query Language),
CS3402 Database Systems Tutorials CS3402 Tutorial 6: 1. Consider the two tables T1 and T2 shown below; show the results of the following operations. T1 T2 (a) T1 × T2 (b) T1 ⋈!”.$%!&.’T2 (c) T1 ⋈!”.(%!&.)T2 (d) T1 ⋈!”.*+!&.*T2 (e) T1 ∗ T2 2. Consider the COMPANY relational schema shown below; specify the following queries
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COMP3308/3608, Lecture 5 ARTIFICIAL INTELLIGENCE Introduction to Machine Learning. K-Nearest Neighbor. Rule-Based Algorithms: 1R Reference: Russell and Norvig, p.693-697, 738-741 Witten, Frank, Hall and Pal, ch. 1-2, ch.4: p.91-96, 135-141 Irena Koprinska, irena.koprinska@sydney.edu.au COMP3308/3608 AI, week 5, 2021 1 Outline • Introduction to Machine Learning (ML) • What is learning and ML? • Classification of
Lab 2 – Queries, Arithmetic Expressions and Functions 1. Objective This set of laboratory exercises illustrates some more advanced features of SQL and SQL*Plus expressions. The number of examples to try is large, yet you are advised to complete all of them, both in and outside your timetabled lab classes. As with the previous handout,
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Lab 3 – Aggregate Functions, Group By and Having Clauses 1. AGGREGATE FUNCTIONS In all the examples so far, we have selected values stored in each row of a table (like SAL), or values calculated for each row (like SAL*12). That is, we have selected information about individual rows stored in the database. You can
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CS3402 Database Systems Tutorials CS3402 Tutorial 7: 1. If the database consists of 512 records and the blocking factor is 8. On average, how many blocks needed to be searched to if the records are in unordered format and ordered format? 2. Suppose that we use hashing to organize a PRODUCT file containing records with
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COMP3308/COMP3608, Lecture 4 ARTIFICIAL INTELLIGENCE Game Playing Reference: Russell and Norvig, ch. 5 Irena Koprinska, irena.koprinska@sydney.edu.au COMP3308/3608 AI, week 4, 2021 1 • Games • Characteristics • Games as search • Games of perfect information • Minimax • Alpha-beta pruning • Games of imperfect information • Games of chance Outline Irena Koprinska, irena.koprinska@sydney.edu.au COMP3308/3608 AI,
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CS3402 Database Systems Tutorials CS3402 Tutorial 5: 1. We are going to design a database for the CS3402 course to keep track the information about students who are taking this course. In this course, each student can be assigned to one optional group discussion section with more than one participant. Each group discussion section
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CS3402 Database Systems Teaching Staff’s Information Lecturers: Dr. LIAO Jing (week1-6) Dr. CHEUNG Man Hon Michael (week 8-13) Email: jingliao@cityu.edu.hk Phone: 3442-8619 Office: YEUNG-G6429 Teaching Assistants: Email:mhcheung@cityu.edu.hk Phone: 3442-7324 Office: YEUNG-Y6412 Mr. MENG Xiangyi xianmeng5-c@my.cityu.edu.hk Ms. HUANG Jialu Ms. YE Shuquan Mr. WAN Ziyu Mr. ZHANG Jingbo
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