COMPARE DATABASE SCHEMA WITHOUT USING TOAD

Question

Hi all,
I have always used toad to compare database schema ....
Does anyone know about any other way to go about comaparing schema?
e.g script etc.....

Answer 1

There are many different ways of doing this, depending on how detailed you want to get and what is relevant to you.
The first place to start is the "Oracle Reference" manual which describes the various DBA_ views. You can build up your won comparison routine fairly easily simply by running differences. Using SQLPlus, you could go down the road of
Prompt Objects missing in &2 that are in &1
SELECT object_type, object_name
FROM DBA_OBJECTS
WHERE OWNER=&1
MINUS
SELECT object_type, object_name
FROM DBA_OBJECTS
WHERE OWNER=&2
Prompt Objects missing in &1 that are in &2
SELECT object_type, object_name
FROM DBA_OBJECTS
WHERE OWNER=&1
MINUS
SELECT object_type, object_name
FROM DBA_OBJECTS
WHERE OWNER=&2
etc.
This has the advantage of allowing you complete control over what you see (as compared to giving that control to some other developer, such as the Toad Team). There are some disadvantages, including:
you need to understand what you want and why;
you need to be familiar with the documentation and the structure of the DBA_ views;
you need to maintain the scripts
You could always purchase Oracle's Change Management Pack add-on to Enterprise Manager or use tools like SQLDeveloper as well.