Podcast
Questions and Answers
Cardinality is the total number of ______ or rows present in a relation
Cardinality is the total number of ______ or rows present in a relation
tuples
A relational database schema is a set of ______ schemas
A relational database schema is a set of ______ schemas
relation
A relation instance or a relation state is a set of ______ at a given moment of time
A relation instance or a relation state is a set of ______ at a given moment of time
tuples
Ted Codd invented the ______ model in 1970
Ted Codd invented the ______ model in 1970
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The first commercial implementations of the relational model were by ______ and IBM
The first commercial implementations of the relational model were by ______ and IBM
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A table in a relational database is also called a ______
A table in a relational database is also called a ______
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A set of possible values that can be input for an attribute is called a ______
A set of possible values that can be input for an attribute is called a ______
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