17.01.2017 17:24, Adriano dos Santos Fernandes wrote:
>>From these two, I know the later is the worse thing can happen in a
> production environment:
>
> - A database with can't be updated due to locks
>
> - A updated database which code running various versions of changed
> logic depending on when statements was prepared and cached

   Yep. That's why application developer must be very careful with using 
statements 
outside of transaction they were prepared in. But that is their are of 
responsibility.


-- 
   WBR, SD.

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