MV Log capturing transactions

Question

I am using oracle 11.2 DB and creatied a MV log on a table to track changes and new/old column values.
CREATE materialized view log on students WITH SEQUENCE,rowid (id,last_name,first_name,middle_name) INCLUDING NEW VALUES
Since some of the processes update more that 1 table at a time before doing a commit, I need to be able to capture that these 3 table updates are all part of the same transaction (commit) .
ie.
My Process does:
update table 1 set x = '1';
update table 2 set y = '2';
update table 3 set z = '3';
commit;
I have been reading that the column xid$$ (transaction id) in the log uniquely identifies the transaction that made the changes to the row. So if I create the log on these 3 tables, will it record the same xid$$ value for changes that were made during the single process?
thanks

Answer 1

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I have been reading that the column xid$$ (transaction id) in the log uniquely identifies the transaction that made the changes to the row. So if I create the log on these 3 tables, will it record the same xid$$ value for changes that were made during the single process?
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Don't be afraid of breaking Oracle by actually trying things! (With the obvious exception of manually altering the data dictionary or SYS objects)