ALTER { specific_method_clause | method_clause }
FOR UDT_name { EXECUTE [NOT] PROTECTED | COMPILE [ONLY] } [;]
- specific_method_clause
SPECIFIC METHOD [SYSUDTLIB.]specific_method_name [SYSUDTLIB.]- method_clause
[ INSTANCE | CONSTRUCTOR ] METHOD [SYSUDTLIB.]method_name [ ( { data_type | [SYSUDTLIB.]UDT_name } [,...] ) ]