odbc_foreignkeys — Returns a list of foreign keys in the specified table or a list of foreign keys in other tables that refer to the primary key in the specified table
odbc_setoption — Ajusta la configuracion de ODBC. Devuelve FALSE en caso de error, en otro caso
TRUE.
odbc_specialcolumns — Returns either the optimal set of columns that uniquely identifies a row in the table or columns that are automatically updated when any value in the row is updated by a transaction