isa
statement
The statement <VAR> isa <TYPE>
is used to identify the <VAR>
as an instance of <TYPE>
.
Schema for the following examples
#!test[schema]
define
attribute name, value string;
entity person, owns name;
Inserting instance of type
The isa
keyword can be used to create a new instance of a given type.
#!test[write]
insert $person isa person;
Deleting instance of type
Unlike in TypeDB 2, the isa
keyword is no longer used to delete an instance of type.
Simply delete the variable that is bound to the instance.
#!test[write]
#{{
match $person isa person;
#}}
delete $person;