How to identify the DDL changes ?

Question

Hi all,
How to identify the DDL changes done to the database ?
By triggers only Or we can use Logminer also OR
SELECT * FROM USER_OBJECTS where object_type = 'TABLE' order by LAST_DDL_TIME desc;
OR
is there any other options are available ?
Thanks in advance,
Pal

Answer 1

Something from asktom might help
tkyte@TKYTE816> create or replace trigger ddl_trigger
2 after create or alter or drop on SCHEMA
3 declare
4 l_sysevent varchar2(25);
5 l_extra varchar2(4000);
6 begin
7 select ora_sysevent into l_sysevent from dual;
8
9 if ( l_sysevent in ('DROP','CREATE') )
10 then
11 if l_sysevent = 'CREATE'
12 then
13 begin
14 select 'storage ( initial ' || initial_extent ||
15 ' next ' || next_extent || ' .... )'
into l_extra
16 from all_tables
where table_name = ora_dict_obj_name
17 and owner = user;
18 exception
19 when no_data_found then null;
20 end;
21 end if;
22
23 insert into log
24 select ora_sysevent, ora_dict_obj_owner,
25 ora_dict_obj_name, l_extra
26 from dual;
27 elsif ( l_sysevent = 'ALTER' )
28 then
29 insert into log
30 select ora_sysevent, ora_dict_obj_owner,
31 ora_dict_obj_name, sql_text
32 from v$open_cursor
33 where upper(sql_text) like 'ALTER%' ||
34 ora_dict_obj_name || '%'
35 and sid = ( select sid
36 from v$session
37 where audsid=userenv('sessionid') );
38 end if;
39 end;
40 /