预先计算 meaning in English
precomputation
Examples
- Each odbc driver is specific to a database management system dbms , such as sql server or access
聚合( aggregation ) 1 .包含预先计算好的多维数据集数据的表或结构。 - If a database regularly uses a small number of collations , consider using generated columns to precompute the result of
如果数据库常常使用很少几个排序规则，那么可以考虑使用生成的列预先计算 - Caches can store both the detailed data read from the underlying data source , and pre - calculated aggregate values based on that data
缓存可以存储从基础数据源读取的详细数据，以及基于该数据预先计算的聚合值。 - By creating a pre - computed column , you can save lots of query time , but this approach requires that you maintain an additional column in the table
通过创建预先计算的列，您可以节省大量查询时间，但是使用此方法时需要在表中多维护一列。 - Used a precomputed endgame database defining perfect play for all positions involving 8 or fewer pieces on the board , a total of 444 billion positions
当棋盘上仅剩下8个或更少的旗子时，它使用一个预先计算好的残局数据库在共计444 , 000 , 000 , 000个节点里选出最完美的走法。