Karteikarten
databases
Karten in diesem Stapel (8)
- 1What is a database?It is a key computing skill to be able to organise data, create databases and control data using query languages.
- 2Benefits of computer databasesthey make it easy to store information so it is quick and easy to find.
- 3What are threats to data secruity
- 4What is a flat- file databasesA flat-file database is a database of just one table.
- 5What is an entityAn entity is any item that has its attributes stored as data. An entity could be anything, eg a book, a person, a film, a country or a football team.
- 6What is an AttributeThe details about entities are called attributes. A person is an entity with attributes including age, height and nationality, among many others.
- 7How are databases organisedentities - each recorded item
attributes - details about the entity
field - columns used to capture attributes
record - one row of details about an entity
table - a set of fields and records
primary key - unique number for an entity - 8—
Informationen
- Beschreibung
- Karteikarten am databases, erstellt von Ed Nogg am 28/03/2017.
- Erstellt von
- Ed Nogg
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