delete all objects for a particular schema

[jmodic]

Originally posted by tycho
JModic,

Ever tried deleting from sys.link$

Tycho

As a matter of fact, I did (among other database "hacking" games), however I can't see how this is relevant here. And BTW, I would not be too comfortable with publicly suggesting to mess up with database dictionary on an open forum like this one - some inexperienced user might even take it seriously and try something simmilar on the production system.....

The isue is not if something is possible at all (if it would not be, how would oracle then do it during "DROP USER" action), the isue is if you can do it with supported actions, like legal DDL statements and PL/SQL APIs. With this in mind I say again: It is not possible to create bullet-proof script to drop all the objects from user schema if you can not connect as the schema owner during the script execution.

[Shestakov]

Originally posted by jmodic
And of course the above script will have to be run N times (where N is some hared-to-define integer > 1) in order to wipe out all objects from a schema. Provided of course that there are some referential integrity constraints among the tables....

Yes this is absolutly correct.

But somebody may try to write "real" script that has to bulid tree(s)
of object's dependences then pass this tree from leafs to roots
and generate right order of "DROP..." commands.
But I guess that executing the "small" version of script 2-3-4... times a little bit easy.

[tycho]

JMdodic,

Dropping and recreating the user can have some messy side effects as well.

All object privileges granted by sys for the user are gone so I am also not happy with this suggestion.


Tycho

[dragon99]

I would find out the roles and privileges the user has. Drop the user and recreate the user as exactly as the dropped one.

[pando]

Originally posted by tycho
JMdodic,

Dropping and recreating the user can have some messy side effects as well.

All object privileges granted by sys for the user are gone so I am also not happy with this suggestion.


Tycho

if you like delete data dictionary go ahead and do so if that makes you happier

[agasimani]

Never mess up with data dictionary objects. Even I feel dropping and recreating the user is the safest bet.

[slimdave]

stuff that you might want to preserve -- role memebership, passwords, grants etc. -- are all easy things to save should you want to drop the user.

[Mnemonical]

export user/pass file=blah.dump grants=y

drop user errr cascade;

create user errr identified by errr password expire;

import user/pass file=blah.dump grants=y




Hummmmmmm.
Hummmmmmm.

F.