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Subject: |
illegibly |
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Date: |
Wed, 20 Jun 2007 00:25:38 -0300 |
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Thunderbird 1.5.0.12 (Windows/20070509) |
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The code starts by creating a login called Carol and a user called Carol
in the Pubs database with CREATE TABLE permission. For example, TRUNCATE
TABLE requires the ALTER permission on the table, which confers the
power to do more than just delete a table's rows.
The ALTER ANY ASSEMBLY permission within the scope of a specific
database allows the grantee to make changes to any assembly. The message
is nevertheless clear: use the catalog views to get at all of the server
and database data and forget about previous hacks. The message is
nevertheless clear: use the catalog views to get at all of the server
and database data and forget about previous hacks.
As you'd expect, sysadmins and sa can see everything on the server in
the system catalog views and database owners can see everything in their
databases. The security context of the running code is changed to Carol,
and then Carol attempts to create a table.
At the server level, you can secure network endpoints to control the
communication channel into and out of the server, as well as databases,
bindings, and roles and logins. The attempt again fails with the same
error message.
The following code grants SELECT permission on the Contact table and
EXECUTE permission on the dbo. The owner must be a singleton account of
a specific user and not a role. For example, you can specify that the
permissions associated with the creator of the code are always used to
access the data.
Like earlier versions of SQL Server, activating an application role
suspends other permissions for the duration that the role is active.
She is finally able to successfully create the CarolSchema.
The ALTER ANY entity permission confers the right to create, alter, and
drop any object of the entity type.
This is a great option if you don't want to rely on ownership chaining
and instead create a user with the necessary permissions to run the
code.
StoredProcedure and Fred.
One is that it only applies to data manipulation operations and not to
dynamic SQL.
The catalog views are read-only, which eliminates some of the hacks that
were possible in earlier versions of SQL Server.
One is that it only applies to data manipulation operations and not to
dynamic SQL.
At the server level, you can secure network endpoints to control the
communication channel into and out of the server, as well as databases,
bindings, and roles and logins. CONTROL rights on one level of the
hierarchy of securable objects implies those same rights for all
contained objects.
You must be careful, though, since the limits on metadata visibility
don't yet apply to all of the metadata functions, such as
OBJECTPROPERTY.
SQL Server Books Online contains the T-SQL for an ImplyingPermissions
user-defined function that assembles the hierarchy list from the sys. In
order to grant cross-database permissions, you'll have to create a
duplicate user in each database and separately assign each database's
user the permission.
At the server level, you can secure network endpoints to control the
communication channel into and out of the server, as well as databases,
bindings, and roles and logins. Most of the old system tables, stored
procedures, and views are still available for use, except that they are
now all exposed as read-only views. A system admin would have to change
ownership of all of the objects owned by Fred.
If the caller had permission to access the view, the data was returned.
It's all for the sake of security and stability.
For example, you can specify that the permissions associated with the
creator of the code are always used to access the data. This
demonstrates how granting a permission at one level of the object
hierarchy grants related permissions on child objects.
The following code grants SELECT permission on the Contact table and
EXECUTE permission on the dbo.
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