Flashcards
Database Revision
Flashcards do conjunto (8)
- 1What is a database?A database is a persistent store of organised data
- 2What are the different types of DatabasesThere are computerised and paper based databases
- 3What are the two different types of computerised databasesFlat-file and Relational
- 4What is a primary keyA primary key is a unique identifier for a record. Once used it cannot be reused, ever.
- 5Which is the primary key?ID
- 6What is an Entity?An Entity is a real life object that data is stored on.
- 7What data does a Record store?A record stores data on an entity
- 8What is an attribute?An attribute stores information on an entity