BMR(Block Media Recovery) 转载自 http://hi.baidu.com/justay/blog/item/f9f71b586871b1272934f02c.html BMR(Block Media Recovery) 关于RMAN的块恢复。Block是oracle数据库最小恢复单位。鉴于此,BMR可以大大缩短恢复的时间,另外,在进行B…
遇到的问题:在pycharm中运行数组运算,出现警告 VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you m…