Sinhronization of 2 transactions

I have 2 transactions. First collection of transactions starts before second and ends (commit) after the start of second transaction, therefor in second transaction i don't see the data from first transaction.
How can i detect that first transaction is started or when its ends? I think that only solution is to detect start or end time of first transaction, and start second transaction in one of that times. But how to do that?

marko Received on Mon Nov 08 2004 - 05:07:11 CST