simultaneous multiple requests to very simple database

Robert Brewer fumanchu at
Tue Jan 18 18:33:29 CET 2005

Eric S. Johansson wrote:
> I have an application where I need a very simple database, 
> effectively a very large dictionary.  The very large
> dictionary must be accessed from multiple processes
> simultaneously.  I need to be able to lock records within
> the very large dictionary when records are written to.

Just to clarify, you want shared-read until a write, at which point you
want to lock just the item being written? Or would page or table locking
be acceptable at that point?

Robert Brewer
Amor Ministries
fumanchu at

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