You are right, bad reading, he says "composite primary key", sorry.
Greetings. Walter. On Thu, Feb 14, 2013 at 3:13 AM, W O <[email protected]>wrote: > Yes, of course, if column A is a primary key (or part of it) then should > be not updatable. But for the context I didn't understood it was a PK. > > Greetings. > > Walter. > > > > > On Thu, Feb 14, 2013 at 1:39 AM, Helen Borrie <[email protected]>wrote: > >> ** >> >> >> At 05:48 p.m. 14/02/2013, W O wrote: >> >So, Helen, if an index use the column A, then (ideally) the column A >> should >> >not be updatable? >> > >> >That's new for me. >> >> It is also a wrong take on what I said. "Column A" in this case is a >> field in the Primary Key. It is extremely poor design to have PK's that >> have updateable fields. >> >> >> Helen Borrie, Support Consultant, IBPhoenix (Pacific) >> Author of "The Firebird Book" and "The Firebird Book Second Edition" >> http://www.ibphoenix.com/products/books/firebird_book >> __________________________________________________________ >> >> >> > > [Non-text portions of this message have been removed] ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Visit http://www.firebirdsql.org and click the Resources item on the main (top) menu. Try Knowledgebase and FAQ links ! Also search the knowledgebases at http://www.ibphoenix.com ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
