Lecture 0: Overview of cs1106/cs6503

Transcription

1 Lecture 0: Overview of cs1106/cs6503 cs1106+ Overview Dr Kieran T. Herley Department of Computer Science University College Cork 2018/19 KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 1 / 16

2 Summary Details of cs1106/cs6503 module. Overview of module content and coverage. Importance of databases and database systems. KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 2 / 16

3 cs1106/cs5021/cs6503 Module Details cs1106 basics Who Me Dr Kieran Herley; WGB G63; You 1 st Year CS; 2 nd Year DHIT; Higher Dip.; Data Science and Analytics; Bio and Comp. Biology Others Erasmus/JYA ask What Title Introduction to Relational Databases Weight Period 1; 5 credits When and Where Lectures Tues 1-2pm BHSC G.01 Wed 9-10am WGB 1.07 Labs (Start soon ) TBA WGB G20 TBA WGB G20 KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 3 / 16

4 cs1106/cs5021/cs6503 Module Details Resources Webpage (soon) Text kieran/cs1106 Lecture slides (.X4.pdf,.pdf). Lab sheets. Handouts. Examples. No assigned text for this module. Useful reference: Learning SQL (2ed edition) by Alan Beaulieu. O Reilly (2009). Approx 18 KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 4 / 16

5 cs1106/cs5021/cs6503 Module Details Module assessment Breakdown Year s work 30 % End-of-semester exam 70 % Coverage Lecture and lab material Year s work 2 in-class tests (15% each) Tuesaday 23 October inclass Tuesday 20 November inclass End-of-Module Exam Formal, 90-minute paper in December Details later KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 5 / 16

6 cs1106/cs5021/cs6503 Module Details Plagiarism 1 Plagiarism is presenting someone elses work as your own. It is a violation of UCC Policy and there are strict and severe penalties. 2 You must read and comply with the UCC Policy on Plagiarism 3 The Policy applies to all work submitted, including software. 4 You can expect that your work will be checked for evidence of plagiarism or collusion. 5 In some circumstances it may be acceptable a reuse a small amount of work by others, but only if you provide explicit acknowledgement and justification. 6 If in doubt ask your module lecturer prior to submission. Better safe than sorry! KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 6 / 16

7 Record keeping Source: British Museum KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 7 / 16

8 What is a database? Database A shared, structured collection of logically related data designed to meet the information needs of an organization Typical example University academic records Student details (name, id, address(es), dob) Academic info. (programme, year) Marks ( modules taken and marks obtained) KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 8 / 16

9 Database systems Database System Database Software = Database(s) + Database Software Database Management System (DBMS) provides software infrastructure to manage multiple databases with differing structures, diverse content etc. Provides tools to allow data to be manipulated and queried Manipulation add/delete/update data Query interrogate data to obtain information of interest Database(s) Organization may need multiple databases University: Academic records, payroll, library catalogue, accounts,... KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 9 / 16

10 Why databases matter Traditional DB Aplications Databases form foundation of IT systems in areas such as public administration (CAO), patroll, banking (account info.), retail (inventory)etc. More Novel DB-Reliant Systems Amazon. YouTube. Facebook. Ebookers. Wikipedia. Ebay. Genbank. KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 10 / 16

11 Why databases matter cont d America s richest man needs no introduction (Forbes list #1 at $72B in 2014) Larry Ellison Oracle CEO (Forbes list #3 at $41B in 2014) Source: Forbes Observation Databases are big business! KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 11 / 16

12 E-Commerce and databases Most e-commerce sites are built around database back-end Typical example Airline reservation system Database holds the data (flight schedules, prices, availability) Web-server holds programs to await and respond to customer enquiries When submits booking form relevant program is awakened which extracts details of customers request queries database for suitable flights generates response (web page) for return to customer KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 12 / 16

13 Some DB-dependant websites KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 13 / 16

14 What we will study in cs1106/cs5021/cs6503 Structure and organization of relational DBs KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 14 / 16

15 What we will study in cs1106/cs5021/cs6503 Structure and organization of relational DBs Specifying and manipulating DBs KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 14 / 16

16 What we will study in cs1106/cs5021/cs6503 Structure and organization of relational DBs Specifying and manipulating DBs Using SQL notation expressing DB queries MySQL standard database software KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 14 / 16

17 What we will study in cs1106/cs5021/cs6503 Structure and organization of relational DBs Specifying and manipulating DBs Using SQL notation expressing DB queries MySQL standard database software Applying DB concepts to sample IT problems KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 14 / 16

18 What we will study in cs1106/cs5021/cs6503 Structure and organization of relational DBs Specifying and manipulating DBs Using SQL notation expressing DB queries MySQL standard database software Applying DB concepts to sample IT problems Designing simple DBs KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 14 / 16

19 Announcements CS1106 Labs 1 Weekly 1.5 hour session per student 2 Check website for your slot 3 Starts Week 3 (TBC) 4 Need DB account details check s KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 15 / 16

20 Announcements Notes and Acknowledgements KH (09/10/18) Lecture 0: Overview of cs1106/cs /19 16 / 16