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From "Satheesh Bandaram (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-464) Enhance Derby by adding grant/revoke support. Grant/Revoke provide finner level of privileges than currently provided by Derby that is especially useful in network configurations.
Date Tue, 14 Mar 2006 22:00:50 GMT
    [ http://issues.apache.org/jira/browse/DERBY-464?page=comments#action_12370427 ] 

Satheesh Bandaram commented on DERBY-464:
-----------------------------------------

I will make the suggested changes to the spec. I will remove the "for instance" example...
in the next version of the spec update. 

> Enhance Derby by adding grant/revoke support. Grant/Revoke provide finner level of privileges
than currently provided by Derby that is especially useful in network configurations.
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>          Key: DERBY-464
>          URL: http://issues.apache.org/jira/browse/DERBY-464
>      Project: Derby
>         Type: New Feature
>   Components: SQL
>     Versions: 10.0.2.1, 10.1.1.0, 10.2.0.0
>  Environment: generic
>     Reporter: Satheesh Bandaram
>     Assignee: Satheesh Bandaram
>  Attachments: GrantRevokePartII.stat, GrantRevokePartII.txt, GrantRevokePartII.txt, changeDescriptionPartII,
grantRevoke.patch.Dec5, grantRevoke.stat.Dec5, grantRevokeSpec.html, grantRevokeSpec_v2.html
>
> Derby currently provides a very simple permissions scheme, which is quite suitable for
an embedded database system. End users of embedded Derby do not see Derby directly; they talk
to a application that embeds Derby. So Derby left most of the access control work to the application.
Under this scheme, Derby limits access on a per database or per system basis. A user can be
granted full, read-only, or no access. 
> This is less suitable in a general purpose SQL server. When end users or diverse applications
can issue SQL commands directly against the database, Derby must provide more precise mechanisms
to limit who can do what with the database.
> I propose to enhance Derby by implementing a subset of grant/revoke capabilities as specified
by the SQL standard. I envision this work to involve the following tasks, at least:
> 1) Develop a specification of what capabilities I would like to add to Derby.
> 2) Provide a high level implementation scheme.
> 3) Pursue a staged development plan, with support for DDL added to Derby first.
> 4) Add support for runtime checking of these privileges.
> 5) Address migration and upgrade issues from previous releases and from old scheme to
newer database.
> Since I think this is a large task, I would like to invite any interested people to work
with me on this large and important enhancement to Derby.

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