> > Anyways, as concurrency is hard and taking row level locks is cheap > and easy way to get the concurrency right I would suggest you use the > select for update method. Also, this way you will avoid the need to > retry failed transactions because of concurrent updates. > > IMHO, both approaches are valid and have their own advantages and disadvantages. I don't think that we have enough information to make a suggestion. What works best for the situation is for the OP to decide.
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