Download Database Terminology Homework

Database Terminology
1. A database is
2. An example of a paper-based database is
3. Three examples of computerised databases are
4. Computerised Vs paper-based databases:
Computerised database
Can hold a vast amount of data
Very fast to search for a record
Can be easily amended or updated
Records are stored safely
Paper-based database
Can only hold what can be stored in a
limited physical space
Can take a long time to manually search
through records
Changes have to be done manually – can
look untidy
Records can be lost or misfiled
5. Explain why a database is suitable for storing information
6. A database table stores
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6. A database table stores
7. A record is
8. An example of a record might look like
Title
Forename
Surname
9. A record is made up of fields. A field is
10. Two examples of fields might be
11. Explain what is meant by a ‘flat-file database’
12. Explain what is meant by the term ‘data duplication’
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Date of Birth
13. List the problems that may occur as a result of using a flat-file database
14. Explain how a relational database can overcome the problems of a flat-file
database.
15. Define the term, ‘primary key’
16. Give two examples of a primary key
17. List three things which are important about a primary key
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18. Explain what is meant by a ‘simple primary key’ and give an example
19. Explain what is meant by a compound or composite primary key and give an
example
20. Define the term, ‘secondary key’
21. Define the term, ‘foreign key’
22. Explain what is meant by ‘referential integrity’
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