We have a requirement to prevent database logons by specific users (who can be identified because they have a particular role) during certain times and I am thinking of options and looking for any other thoughts on the best approach. These are some of my thoughts Resource manager - put the users into a resource group and schedule that group to limit access appropriately - I have not tested this to see if it is possible but if you can give it zero CPU quota it might be possible - does seem a lot of effort though and my experience of RM is that it does need a lot of tweaking/maintenance Logon trigger - simple to implement - just needs a bit of work around matching current time with allowed hours - but it will run against every login and that is a big overhead on a busy system OEM job (or dbms scheduler) to revoke create session from role - thinking about it I think the scheduler job which is local on the database is safer. It would need to do some form of 'alter user revoke role' command but that should all work. The user does not get a good message back though which is a bit of a problem with 2 of the solutions but the login trigger could have a message output to the user Any other suggestions please Thanks John www.jhdba.wordpress.com DBA Team Leader Wm Morrison Supermarkets PLC Tel 0845 611 4589 Mob: 07876 790540 E-mail: john.hallas@xxxxxxxxxxxxxxxxxx<mailto:john.hallas@xxxxxxxxxxxxxxxxxx> ______________________________________________________________________ Wm Morrison Supermarkets Plc is registered in England with number 358949. The registered office of the company is situated at Gain Lane, Bradford, West Yorkshire BD3 7DL. This email and any attachments are intended for the addressee(s) only and may be confidential. If you are not the intended recipient, please inform the sender by replying to the email that you have received in error and then destroy the email. If you are not the intended recipient, you must not use, disclose, copy or rely on the email or its attachments in any way. This email does not constitute a contract in writing for the purposes of the Law of Property (Miscellaneous Provisions) Act 1989. Our Standard Terms and Conditions of Purchase, as may be amended from time to time, apply to any contract that we enter into. The current version of our Standard Terms and Conditions of Purchase is available at: http://www.morrisons.co.uk/gscop Although we have taken steps to ensure the email and its attachments are virus-free, we cannot guarantee this or accept any responsibility, and it is the responsibility of recipients to carry out their own virus checks. ______________________________________________________________________