How to see objects in Oracle 9i

Question

i wrote :
CREATE TYPE A as OBJECT(
aa varchar2(10);
Warning: Type created with compilation errors.
the question are :
1. was the report normal? what's the meaning of compilation errors?
2. how i know if there's an object A stored in my login user.
3 . is there any code to see objects stored in my login user (maybe : desc objects ? or something like that)
thanx

Answer 1

was the report normal?Normal in the sense that this is the correct behaviour when our doesn't compile.
what's the meaning of compilation errors?The code is syntactically incorrect, the computer does not understand our input. In SQL*Plus we can use SHOW ERROR to see the compilation errors. In this case, it is the rogue semicolon in the attribute declaration. try this...
SQL> CREATE TYPE A as OBJECT(
  2  aa varchar2(10)
  3  );
  4  /
Type created.
SQL>
how i know if there's an object A stored in my login user.
SELECT object_type, last_ddl_time
FROM    user_objects
WHERE object_name = 'A'
is there any code to see objects stored in my login user SELECT object_name
FROM user_objects
WHERE object_type = 'TYPE'
Notice that Oracle has been using the term object to refer to things inside the database (e.g. table, index, procedure) look before object-oriented stuff was introduced. So it's good to be clear about whether you mean OBJECT or TYPE.
Cheers, APC