Create a relation data object, using the given relational schema object, with
the resulting relations empty and ready for data insertion using
insert
.
create(x, ...)
An instance of the schema. For example, calling create
on a
database_schema
creates a database
, where all
the relations contain zero records.
a relational schema object, representing the schema to create an
instance of, such as a relation_schema
or
database_schema
object.
further arguments passed on to methods.