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