Your coursework assignment should be submitted as a single PDF file, using the following file-naming conventions:

computer science

Description

University of London

Computing and Information Systems/Creative Computing

CO2209 Database systems

Coursework assignment 1 2019-2020

 

ANSWER SHEET

 

Your coursework assignment should be submitted as a single PDF file, using the following file-naming conventions:

 

YourName_SRN_CO2209cw#.pdf  

 

Example: GraceHopper_920000000_CO2209cw1.pdf)

 

  • YourName is your full name as it appears on your student record (check your student portal); Please use just your name, and not any appellation such as ‘MR’ or ‘MS’.
  • SRN is your Student Reference Number, for example 920000000;
  • CO2209 is the course number for this course (databases).
  • cw# is either cw1 (coursework 1) or cw2 (coursework 2).

 

 

 

A – Essay background in databases, any problems installing MariaDB or MySQL.

 

 

 

 

[1 hour - 4 marks]

 

 

 

B – Data

 

 

B1 – How examples A and C differ from B

 

 

 

 

[1 hour - 4 marks]

B2 – Which level is being referred to?

 

 

1.   

 

2.  

 

3

 

4.  

 

 

[1 hour - 4 marks]


B3 – SQL data types

 

(1)   Smallint

 

(2)   Mediumint

 

(3)   Bigint

 

(4)   Decimal

 

(5)   Char

 

(6)   Varchar

 

(7)   Date

 

(8)   Datetime

 

(9)   Timestamp

 

(10) Time

 

 

 

[1 hour - 4 marks]

 

 

 

B4 – Singapore address formats

 

Formats:   

 

 

 

 

 

 

 

 

 

 

 

Problem?

 

 

 

 

[1 hour - 4 marks]

 

 

 

 

 

 

 

 

 

B5 – Erroneous data – the size of the problem

 

(a)  

 

(b)  (i)    

 

    

      (ii)     .

 

(c)  

 

 

(d)

 

 

(e)  

 

 

 

[2-4 hours - 8 marks]

 

B6 – Minimising data errors - I  

 

(a) (i)   

 

    

      (ii)  

 

 

(b)  (i)   

 

    

      (ii)   

 

 

 

      (iii)   

 

 

 

[1 hour - 4 marks]

 


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