At work we have just started building an auditing framework for our database (i.e. to log what data has changed when it is created or updated).
We’d quite like to implement this using triggers as data sometimes gets imported into the system from other places, not just via the front-end. This seems to be a fairly common solution.
However I’d like to make one addition: if a user runs an update which updates more than one table, I’d like those to be grouped together in a batch (i.e. to generate a unique batch ID for each set of updates).
The problem is, getting a batch ID from within a trigger. Each update will run within a transaction, so I was wondering whether I could use the Transaction ID to generate a batch ID. However I can’t find a way of accessing the Transaction ID anywhere within T-SQL.
Anyone have any ideas?
P.S. – We are running SQL Server 2008, if it makes any difference
you can just use select * from sys.dm_tran_current_transaction
sys.dm_tran_current_transaction