data visualization Introduction to Tableau Copyright By PowCoder代写 加微信 powcoder January 2022 data visualization Journey of Business Intelligence (BI) What is Tableau? Quick DEMO Other complementary business software Closing thoughts Why are we here today? Cornellians need to leap into next generation Business Intelligence (BI) Provide self-service intuitive interfaces for visualizing collected data Take the […]
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Stat 260, Lecture 7, Relational Data Stat 260, Lecture 7, Relational Data David Stenning 1 / 34 Load packages and datasets library(tidyverse) library(nycflights13) # Example from http://www.itl.nist.gov/div897/ctg/dm/sql_examples.htm station % count(year,month,day,flight,tailnum) %>% filter(n > 1) %>% print(n=3) ## # A tibble: 11 x 6 ## year month day flight tailnum n ## ## 1 2013 2
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Microsoft Word – INFS3208_final_exam_V7.doc Semester Two Final Examinations, 2019 INFS3208 Cloud Computing Page 1 of 10 This exam paper must not be removed from the venue School of Information Technology and Electrical Engineering EXAMINATION Semester Two Final Examinations, 2019 INFS3208 Cloud Computing This paper is for St Lucia Campus students. Examination Duration: 120 minutes Reading
Microsoft Word – INFS3208_final_exam_V7.doc Semester Two Final Examinations, 2019 INFS3208 Cloud Computing Page 1 of 10 This exam paper must not be removed from the venue School of Information Technology and Electrical Engineering EXAMINATION Semester Two Final Examinations, 2019 INFS3208 Cloud Computing This paper is for St Lucia Campus students. Examination Duration: 120 minutes Reading
FIT3031/FIT5037 NETWORK SECURITY Week 7 Wireless Security 2 L07: Outline and Learning Outcomes • Overview security threats and countermeasures for wireless networks. • Describe the essential elements of the IEEE 802.11 wireless security standard • WEP (insecure), WPA, WPA2 • Understand the vulnerability in WPA2 implementation • Analyse the unique threats posed by the physical
1/47 Week 4 Workshop 2/47 Housekeeping information SQL Assessment (Assignment 1) will be available on Wattle 23:59 tonight, and the submission via Wattle is due 23:59 Sep 3 (Friday, Week 6) Individual, no group work! Do not post any idea/partial solution/result on Wattle. Do not wait until the last minute to check/submit your solution. Sample
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COMP2400 – Relational Databases Assignment 1 (SQL) Due date: 23:59, September 3, 2021 Instructions: • This assignment should be done individually (no group work). Do not post any idea/interpretation/par- tial solution/result related to this assignment on the Wattle Discussion forum. Join the special drop-in sessions in Week 5 and Week 6 if you need any
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COMP2400/6240 – Relational Databases SQL Sample Questions Due date: TBD Question 1 Unknown Marks The relational database moviedb has the following database schema: Movie(title, production year, country, run time, major genre) primary key : {title, production year} Person(id, first name, last name, year born) primary key : {id} Award(award name, institution, country) primary key :
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1/26 Revision – Final Exam Information 2/26 NoSQL Test The NoSQL test was available from 12:00pm, 23 October (Saturday) to 11:59pm, 28 October (Thursday). The NoSQL results will be released on 29 October (Friday). Special Drop-in Session: 2-3 pm (Tuesday) 2 November. 3/26 Final Exam Time: COMP2400: 5:40 pm, 8 November (Monday) 2021 COMP6240: 5:30
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Relational Algebra (Part 2) Summary of Relational Operators Operator Notation Meaning Selection σϕ(R) choose rows Projection πA1,…,An(R) choose columns Union R1 ∪ R2 set operationsIntersection R1 ∩ R2 Difference R1 − R2 Cartesian product R1 × R2 combine tablesJoin R1 ��ϕ R2 Natural-join R1 �� R2 Renaming ρR� (A1,…,An)(R) rename relation and attributesρR� (R) ρ(A1,…,An)(R)
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