Rural Hunter <ruralhun...@gmail.com> wrote: > I still have this question: > same statement A,B,C,D update same row. The start order is > A->B->C-D. From what I've gotten, B/C/D got the lock before A. > Why did that happen? Did you do anything to prevent it from happening? If not, the OS scheduler is going to give time to one process or another in a fairly unpredictable way. -Kevin
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