superkey

As nouns the difference between terms and superkey

is that terms is while superkey is (databases) any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.

As nouns the difference between key and superkey

is that key is an object designed to open and close a lock while superkey is any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.

As an adjective key

is indispensable, supremely important.

As a verb key

is to fit (a lock) with a key.

As a proper noun Key

is {{surname}.

As nouns the difference between tuple and superkey

is that tuple is a finite sequence of terms while superkey is any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.

As nouns the difference between relvar and superkey

is that relvar is a variable that contains a relation, as distinguished from the relation itself while superkey is any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.

As nouns the difference between attribute and superkey

is that attribute is a characteristic or quality of a thing while superkey is any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.

As a verb attribute

is to ascribe (something) {{term|to}} a given cause, reason etc.