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Computed columns |
Mon, Jul 25 2011 2:15 PM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Tim
><< As long as it doesn't do it in the real world its not to important. >> > >You'll see the behavior if you use a mix of SQL.Text:='..... ' combined >with SQL.Assign(.... Don't think I've ever done that. SQL.Text := and SQL.Add yes ><< But that raises the question in my mind of when does the view have to be >refreshed? >> > >When does it have to be refreshed by the user/developer, or when does it >have to be refreshed by EDB ? I was thinking more ElevateDB than user/developer since you're not in charge of the latter Roy Lambert [Team Elevate] |
Mon, Jul 25 2011 2:21 PM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Roy,
<< I was thinking more ElevateDB than user/developer since you're not in charge of the latter >> It has to be refreshed whenever EDB detects that it has been changed. The change detection process for views is the same as for tables - if EDB has to read any part of the table from disk, it checks for changes and then dumps its local cache for that table if it finds any changes. With views, the change detection check involves all tables in the view, as opposed to just one table. -- Tim Young Elevate Software www.elevatesoft.com |
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