103年地特 三等資料庫 - 考試
By Todd Johnson
at 2015-03-22T18:28
at 2015-03-22T18:28
Table of Contents
板友好
請問 104三等 資料庫第四題的Timestamp法
我如果使用 wait/die方法
假設 TS(T1)<TS(T3)<TS(T2)<TS(T4)
在時間點6時,因TS(T1)<TS(T2)
T1是不是允許等待??因為時戳較小
在時間點8時,因TS(T3)<TS(T2)
T3是不是也是允許等待??
但在高X的解答中
怎麼會是撤掉T1跟T3??
如果是用wound/wait
也是T2要撤掉
是我觀念有問題嗎??
煩請解答,謝謝
付上連結:http://dl.ibrain.com.tw/Paper/KP/103/K92.pdf
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