NAME ALTER_USER - change a database role SYNOPSIS ALTER USER role_specification [ WITH ] option [ ... ] where ... password ' | PASSWORD NULL | VALID UNTIL ' timestamp ' ALTER USER …NAME ALTER_USER_MAPPING - change the definition of a user mapping SYNOPSIS ALTER USER MAPPING ... DROP ] option [' value '] [, ... ] ) DESCRIPTION ALTER USER MAPPING changes the de…USER MAPPING ( CREATE_USER_MAPPING (7)), ALTER USER MAPPING ( ALTER_USER_MAPPINGISO/IEC 9075-9 (SQL/MED). SEE ALSO ALTER USER MAPPING ( ALTER_USER_MAPPING (7)), DROP USER