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erase_all(+Key)
All the the values associated with key Key are removed from the indexed
database.
- Key
- An atom or compound term.
Description
Used to remove all entries from the indexed database with the associated
key Key. In the case of compound terms, all keys of the same name and
arity are treated as equal.
Modes and Determinism
Modules
This predicate is sensitive to its module context (tool predicate, see @/2).
Exceptions
- (4) instantiation fault
- Key is uninstantiated.
- (5) type error
- Key is neither an atom nor a compound term.
Examples
Success:
[eclipse]: record(whiskey,jameson),
> record(whiskey,bushmills),
> record(whiskey,glenfiddich),
> record(whiskey,dimple).
yes.
[eclipse]: erase_all(whiskey).
yes.
[eclipse]: recorded(whiskey,L).
no (more) solution.
Error:
erase_all(Key). (Error 4)
erase_all("key"). (Error 5)
erase_all(1). (Error 5)
See Also
erase / 2