Presentation is loading. Please wait.

Presentation is loading. Please wait.

Databases – Exam questions

Similar presentations


Presentation on theme: "Databases – Exam questions"— Presentation transcript:

1 Databases – Exam questions
Candidates should be able to: a. describe the terms typically used in relational database terminology: tables, primary keys, fields, records, relationships, foreign keys, duplicate data, referential integrity, entity, attribute, explaining the role and purpose of each; b. identify tables, records, fields, primary keys and foreign keys, and interpret and create entity relationship diagrams for a given scenario; c. identify the characteristics of data in unnormalised (0NF), first normal form (INF), second normal form (2NF) and third normal form (3NF); d. describe the advantages and disadvantages of normalisation; e. describe the components of a data dictionary; f. select appropriate data types for a given set of data, and explain the advantages and disadvantages of alternative data types; g. describe dynamic and static parameter queries and simple and complex queries and explain when and how they might be used, giving examples of use.

2 a. describe the terms typically used in relational database terminology: tables, primary keys, fields, records, relationships, foreign keys, duplicate data, referential integrity, entity, attribute, explaining the role and purpose of each;

3 Jan 2012

4

5 Jan 2012

6

7 Jan 2013

8

9 Jan 2013

10

11 June 2015

12

13 b. identify tables, records, fields, primary keys and foreign keys, and interpret and create entity relationship diagrams for a given scenario;

14 Jan 2012

15

16 Jun 2012

17

18 June 2013

19

20 June 2015

21

22 c. identify the characteristics of data in unnormalised (0NF), first normal form (INF), second normal form (2NF) and third normal form (3NF);

23 June 2012

24

25 June 2013

26

27 d. describe the advantages and disadvantages of normalisation;

28 Jan 2012

29

30 e. describe the components of a data dictionary;

31 Jan 2012

32

33 June 2014

34

35 f. select appropriate data types for a given set of data, and explain the advantages and disadvantages of alternative data types;

36 Jun 2012

37

38 Jan 2013

39

40 Jan 2013

41

42 June 2013

43

44 June 2014

45

46 June 2015

47

48 g. describe dynamic and static parameter queries and simple and complex queries and explain when and how they might be used, giving examples of use.

49 Jun 2012

50

51 June 2013

52

53 June 2014

54

55 June 2015

56


Download ppt "Databases – Exam questions"

Similar presentations


Ads by Google