Looking for package locking to avoid developing colisions

Hi,
I need a mechanism (either in database or some tool) which will allow me to lock the package for the time I am modifying it to prevent other developers from making changes at the same time. Is there such a mechanism built in Oracle it self or maybe you know some tool providing some functionality basing on some kind of repository?
Thanks!
Wojtek

WojtusJ wrote:
But if you are talking about version control software it's clear, I know that it is possiblethis way, I'm just looking for possible alternatives, becouse I don't need version control, the only thing needed is package locking mechanism for the modification time.There is no such thing (package locking mechanism) in the database.
If you are using a tool that reads the source straight from the database (USER_SOURCE), allows you to edit it, and then save it by CREATE OR REPLACE - ing it back into the database, then yes you run a big risk that developers "overwrite" each others changes.
The real solution to this problem is to not use the database as your environment of master sources, but instead use a version control system that uses a filesystem with lots of ascii-files as your master source environment.
If you run into the problem only now and then, and find introducing a version control system a too heavy solution for your problem, then you could also look into developing a few DDL triggers (triggers that fire when you CREATE OR REPLACE something) that copy the current source into a 'backup'-table, before having it overwritten by the create-or-replace ddl command. Then you can always query your backup-table to get the overwritten source changes.
Toon

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Looking for package locking to avoid developing colisions

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