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From Jeffrey Kesselman <>
Subject Re: Cassandra Vs. Oracle Coherence
Date Fri, 20 May 2011 08:23:58 GMT
I believe coherence is their name for the TimesTen technology they bought.

TT is an in memory SQL database that can  run as a cache for Oracle.

Its totally different from Cassandra.   On the one hand it supports
trad SQL whereas Cassandra does not.  On the other hand Cassandra is
truly distributed and fault tolerant, whereas TT is not.

I suggest getting and reading the Oriely Cassandra book.


On Tue, May 17, 2011 at 10:44 PM, Karamel, Raghu
<> wrote:
> Hi,
> I am new to Cassandra and very excited with the technology. I am evaluating
> it and trying to understand the difference between Cassandra and Oracle
> Coherence. Precisely , looking for reasons why would some select Cassandra
> over Oracle Coherence. Does anyone did the exercise of comparing them?
> Appreciate if you can share some information on that.
> Regrads
> -RK

It's always darkest just before you are eaten by a grue.

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