Describing content of the package.

Question

Hello
I'm trying to describe the content of the package from PL/SQL procedure. So far I have been using DBMS_DESCRIBE and ALL_ARGUMENTS VIEW. I have no problem with finding procedures/functions and their parameters.
What I'm having problem with is finding types defined in the package and describing them. So if there is a type of record defined in the package, I would like to retrieve the structure of the record.
Any help or suggestions will be much appreciated.
Regards
MJ

Answer 1

Hello.
The MichaelS's answer is brilliant, however I do use version 10g and this solution wouldn't work.
I was trying different approach. Let's create sample package:
Create Or Replace
Package Sample_Test As
     Type My_Rec Is Record (      Rec_Val_1    Varchar2(50),
                                  Rec_Val_2    Number  );
     Type My_Other_Rec Is Record (Rec_Val_3    Date,
                                  Rec_Val_4    Number  );
     Type My_Tab Is Table Of My_Rec;
     Function My_Fun (P_Param_1 In Number) Return My_Tab Pipelined;
End Sample_Test;I was able to get partial result by executing query below:
Select * From User_Types Where Type_Name Like (
               Select    'SYS_PLSQL_'||Object_Id||'%'
               From      User_Objects
               Where     Object_Type = 'PACKAGE'
               And       Object_Name ='SAMPLE_TEST'
);I was getting the three records in the output:
SYS_PLSQL_102669_DUMMY_1
SYS_PLSQL_102669_9_1
SYS_PLSQL_102669_37_2
From this I can get the list of a attributes/fields using User_Type_Attrs.
There are few elements that I'm not yet sure about. Main one is how the type_name is actually build.
For example in the list above what is the meaning of the part of the string after 102669 ?
Another is how to link type_name with the name of the type that existst in the list of arguments. Like the one returned by following query:
Select Aar.Type_Name||'.'||Aar.Type_Subname, Aar.*
From   All_Arguments Aar
Where  Aar.Package_Name = 'SAMPLE_TEST'
And    Aar.Data_level = 1I have to admit that it is not critical issue for me, however I'd like to understand it fully.
Regards,
MJ