def destroy_system_tables(db):
    from dsaw.db import systemTables
    system_tables = systemTables()
    for table in system_tables.itertables():
        db.dropTable(table)
        continue
    return
def create_system_tables(db):
    from dsaw.db import systemTables
    system_tables = systemTables()
    for table in system_tables.itertables():
        db.createTable(table)
        continue
    return