database keyword flashcards

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database
a persistent organised store of related data on a computer system
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CRUD
create, retrieve, update, delete
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serial file
a file of items one after another
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sequential file
a serial file in order
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indexed sequential file
a sequential file that is accessed using an index, which is a separte file
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flat file database
database consisting of only one table
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field
a characteristic of something in a database
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record
all the data about one item in a database
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entity
something that we store data about in a database
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attribute
a characteristic of an entity
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data redundancy
the unnecessary repitition of data
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data integrity
the state of data being as it should be, reflecting reality
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validation
the process of checking data as it is input to ensure that it is reasonble
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verification
the process of checking data is true or correct
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one to many
a relationship where one record in a table may have links to many records in another table
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entity relationship diagram
a diagram that shows how different entities used in a database are connected
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Other cards in this set

Card 2

Front

create, retrieve, update, delete

Back

CRUD

Card 3

Front

a file of items one after another

Back

Preview of the back of card 3

Card 4

Front

a serial file in order

Back

Preview of the back of card 4

Card 5

Front

a sequential file that is accessed using an index, which is a separte file

Back

Preview of the back of card 5
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