索引更新 meaning in Chinese

index upgrade

D . updating page or row counts or both for a specific index in a table
D .为表中的特定索引更新页数或行数，或同时更新两者
Therefore , index updating is usually performed as an asynchronous process that runs in the background during periods of low database activity
因此，索引更新通常作为异步进程在数据库活动较少时在后台执行。
Through the new system , the search engine can implement larger scale web covering and faster index updating , and provides better searching service
通过这个新的系统，搜索引擎能够实现更大规模的网页覆盖和更快的索引更新，从而提高更好的搜索服务。