I am facing a peculiar issue.I have a user table with column name UserPoint of int type.
I am up dating it inside transaction
. When only user A is there i am adding 10 point to this column for that user.
When two user Let A and B are present I am adding 20 point to A and subtracting 20 point from B.For case 2 I have to use transation
Here I got exception Row not found or changed exception
.for case 2 only not for case 1.After goggling I got that to make that UserPoint property in USER entity as Update Check from Always to Never
.What is its (Update Check - Always and Never) advantage and disadvantage