虚拟索引 虚拟索引(virtual index)是指没有创建对应的物理实体的索引。虚拟索引的目的，是在不必耗cpu,耗IO以及消耗大量存储空间去实际创建索引的情况，来判断一个...
基于618个网页-相关网页
现在将用优化器根据实际和虚拟索引选择的访问计划来填充解释表。
This now populates the explain tables with the access plan chosen by the optimizer based on real and virtual indexes.
名为“Others”的虚拟Linux操作系统组索引第三个条目。
The third entry is indexed by a virtual Linux operating system group called "others."
还请记住，AIX上大约有最大为250 MB的私有虚拟内存用于LOAD中的索引键排序(这是内存瓶颈)。
Also keep in mind that on AIX, there is approximately a Max of 250mb of private virtual memory for index key sorting in LOAD (this is a memory bottleneck).
应用推荐