oracle11g sql: Warning: Type created with compilation errors - sql

Question

I'm trying to create a supertype customer service and subtype agent and supervisor, so they can inherent values however when I try to run this in oracle sql: a message comes up
Warning: Type created with compilation errors.
What is wrong with the code below?
Create or replace type customer_s_type as object (
csID number,
csName varchar(15),
csType number ) NOT FINAL;
Create or replace type supervisor_type UNDER customer_s_type ( title varchar (10) );
Create or replace type agent_type UNDER customer_s_type (title varchar (10));
Create table supervisor of supervisor_type (
CONSTRAINT supervisor_PK PRIMARY KEY (csID));
Create table agent of agent_type (CONSTRAINT agent_PK PRIMARY KEY (csID));
create table customer_service(
csID number(10),
csType number(10),
constraint supervisor_pk primary key(csID) );

Answer 1

You can use show errors in SQL*Plus or SQL Developer, or select * from user_errors, to see the error details.
Since you've shown six commands and the warning is about one of the first three (since it refers to type), and they appear OK independently apart from the constraint pointed put in comments, it looks like the whole script is being imterpreted as one command. It depends on your client settings, but you probably just need to seperate the commands with a / to cause them to execute. Becuase types can include PL/SQL the ; isn't treated as a statement seperator. So:
Create or replace type customer_s_type as object (
csID number,
csName varchar(15),
csType number ) NOT FINAL;
/
Create or replace type supervisor_type UNDER customer_s_type ( title varchar (10) );
/
Create or replace type agent_type UNDER customer_s_type (title varchar (10));
/
Create table supervisor of supervisor_type (
CONSTRAINT supervisor_PK PRIMARY KEY (csID));
Create table agent of agent_type (CONSTRAINT agent_PK PRIMARY KEY (csID));
create table customer_service(
csID number(10),
csType number(10),
constraint customer_service_pk primary key(csID) );