How do you create a Mnesia table?

mnesia:create_table/2 takes a table name and a list of options describing its attributes, storage type, and table type, registering it in the schema and allocating the underlying storage.

-record(person, {id, name, age}).

mnesia:create_table(person,
    [{attributes, record_info(fields, person)},
     {disc_copies, [node()]},
     {type, set}]).

The attributes option is almost always built from record_info(fields, RecordName) so the table's field order automatically matches an existing -record definition rather than being retyped by hand. Other common options include type (set, ordered_set, or bag) and the storage type option matching where you want copies to live.

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