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In response to Peter Billen <[EMAIL PROTECTED]>:
> 
> What is the best way to disallow updates on a column of a table, or even 
> on a whole table itself?
> 
> I can write a BEFORE UPDATE trigger which compares old.column_name(s) to 
> new.column_name(s) and raise an exception if these values are different.
> 
> Are there better ways?

You can use the GRANT system to enforce table-wide restrictions.  See
the docs on GRANT and REVOKE and associated doc sections.

-- 
Bill Moran
Collaborative Fusion Inc.
http://people.collaborativefusion.com/~wmoran/

[EMAIL PROTECTED]
Phone: 412-422-3463x4023

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