In MS SQL Server, is there a way to “atomically” increment a column being used as a counter?

Question

Assuming a Read Committed Snapshot transaction isolation setting, is the following statement \"atomic\" in the sense that you won\'t ever \"lose\" a concurrent increment?

Answer 1

No, it's not. The value is read in shared mode and then updated in exclusive mode, so multiple reads can occur.

Either use Serializable level or use something like

update t
set counter = counter+1
from t with(updlock, )
where foo = bar