Ask_Maclean_liu_Oracle
11.2.0.4 现在提供 对于 adaptive serial direct path read的trace了 alter session set events 'trace[nsmtio] disk medium'; 引入了几个简写术语： VLOT _very_large_object_threshold OBJECT_SIZE 对象统计所显示大小 STT _small_table_threshold MTT ==> may be medium table threshold 展开全文原微博