Object after "FROM" keyword needed

Question

hi Friends,
I have one question . I want to get the object in a variable in sql or pl/sql which is being queried against (the object after FROM key word)
For e.g. in the below statements
select *from v$active_session_history
select *from emp where empno=20;
How can i get v$active_session_history and emp ?
note: the object can be a view
One way is to REGEXP , but i am not too familiar with using it solve my problem.
Why i need it: I have 100s of sql texts and i want to get the object which these sqls are queried against and then use them for further activities.
10x

Answer 1

Hi Karthick Arp/BluShadow/#Nishe#/Dave Rabone Thanks for replying. Below are the details of what i want to achieve
I work on an OLTP application and check new queries which are doing FTS every week.
I have a script which is called from the cron. It runs a script every Saturday and checks v$sql_plan and v$sqlarea like below
+++++
operation = 'TABLE ACCESS'
AND options = 'FULL'
and upper(module) not like 'TOAD%' and upper(module) not like '%SQL%'
+++++
The script filters out those queries which i have already seen.
So i have the sql ids and few other details like rows in table etc.
For doing analysis i most of the times do the below:
1. TABLE
Check the indexes for understanding why it is not doing taking the indexes
2. VIEW
Check the metadata for the view as to what predicates would be better to avoid it going to FTS ,if possible.
I want to automate the above 2 steps
So what i want to do is get :
a. indexes list if the object is a table?
b. metadata for the view if the object is a view.
Below are answers to your questions
How about table or view that are part of join or scalar subquery or correlated subquery or subquery factoring etc.. Do you want them as well?
--Yes i want them all Are all your SQL statements simple selects? Or are they more complex, containing subqueries etc.?
--More complex And if the object is a view, do you need to know the base tables?
--No