Greg Stark wrote:
> There are other solutions too. I never used DB2 but I was led to believe they
> used their transaction log to retrieve old versions of the records. Someone
> else here claimed DB2 didn't implement MVCC at all so perhaps that's wrong
> though.
I would be suprised giving this paper:
ftp://ftp.software.ibm.com/software/data/pubs/papers/readconsistency.pdf