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ORACLE parent latchºÍchildren latch

         About parent vs child latches. There is no fundamental low level difference between parent and child latches, they are all small regions of memory modified with atomic test-and-set style opcodes.
You see parent (and solitary) latches from x$ksll ......

oracle ÄÚ´æÊý¾Ý¿â TimesTenÊÔÓñʼǣ¨aix5.3£©

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