Hi AJ.

Counters are really cool for certain things.. 

The main benefit (from a high level perspective) is that you don't have to read 
the record in to find the old value. (and stick a lock on the record to prevent 
it from changing underneath you).

what I use them for is to increment page-views. I just read a log-line in, and 
can update the rows without having to read it beforehand.. which is nice 
performance wise.

On Jun 10, 2011, at 2:18 PM, AJ wrote:

> I can't find any that gives an overview of their purpose/benefits/etc, only 
> how to code them.  I can only guess that they are more efficient for some 
> reason but don't know exactly why or exactly what conditions I would choose 
> to use them over a regular column.
> 
> Thanks!

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