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深入观察Oracle数据块nested loop读取行为
- WBOYOriginal
- 2016-06-07 16:37:551275browse
前面写了一篇文章是通过10020 event事件来追踪oracle读取buffer get的过程。通过该事件，我们可以进一步来研究下nested loop、hash join连接的数据块读取行为。以下实验首先创建了两张表，T1表足够大，而T2表比较
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