attributes              Combine attributes
close_conn              Close connection to database
delete                  Execute 'DELETE' query
get_attr                Get attributes of a table
insert                  Execute 'INSERT' query
is.connected            Verify connection
list_tables             List tables
open_conn_mysql         Connect to database
quote                   Add single quotes
select                  Execute 'SELECT' query
select_all              Select all the records
update                  Execute 'UPDATE' query
