That is usually done by the application. You can attempt to 
acquire a user lock in the share mode (ULS) before executing the
select and lock it in the exclusive mode (ULX) for admin purposes.
That is usually done through DBMS_LOCK package.

> -----Original Message-----
> From: John Dunn [mailto:[EMAIL PROTECTED]]
> Sent: Friday, February 14, 2003 10:04 AM
> To: Multiple recipients of list ORACLE-L
> Subject: Lock table and disallow select
> 
> 
> Query from user. can the following be done in PL/SQL? 
> 
> 
> > I need to be able to lock a table in such a way that not 
> only can no other
> > session alter any records in the table, but they cannot 
> read the table at
> > all (i.e. do SELECTs on it) until I'm done with it.
> > 
> > Any SELECT statements would pause until I release the lock.
> > 
> > Is such a thing possible?
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> -- 
> Author: John Dunn
>   INET: [EMAIL PROTECTED]
> 
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Gogala, Mladen
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