artificially causing a field to be left in a script

Dr. Hawkins dochawk at gmail.com
Fri Sep 28 17:53:36 EDT 2012


On Fri, Sep 28, 2012 at 9:34 AM, Bob Sneidar <bobs at twft.com> wrote:
> What I learned from an old multiuser accounting program was to maintain some kind of
>counter column, incrementing it (or resetting it when it gets to the highest value)
>whenever an update occurs. Before the write, but after you lock the table for updates,
>check the value against what it was when you read it. If it's not the same, someone else
>updated it first, so reset the data.

my current plan is actually tw extra columns, one to identify Who
wrote the record, and the other for a timestamp.

I suppose I'll also sets a time that the lock applies for, and
automatically release and one that user when time is up.

-- 
Richard E. Hawkins, Esq.
(702) 508-8462




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