Short story is that few if any of the NoSql systems supprot transactions natively. Thats oen of the big compromises they make.  What they call "eventual consistancy" is actually eventual Durabiltiy in ACID terms.
Consistancy, as meant by the C in ACID,  is not gauranteed at all.

On Wed, Aug 1, 2012 at 6:21 AM, Ivan Jiang <> wrote:
    I am a new guy to Cassandra, I wonder if available to call Cassandra in one Transaction such as in Relation-DB.

Thanks in advance.

Best Regards,
Ivan Jiang

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