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DATA ALLOCATION CONTAINERS IN A PARTITIONED TABLE OF A COMPUTER DATABASE SYSTEM FOR HOLDING DATA BASED ON USAGE

机译:基于使用的计算机数据存储表分区表中的数据分配容器

摘要

An apparatus and method utilize partitioned database tables divided into data allocation containers (DACs) where data is placed into the DACs based on usage of the data in past queries. Records that are used most often are placed together and records that are used less often are placed together to improve database performance. In preferred embodiments, a database manager determines where to place data into the DACs based on how often the data is selected by a database query using a DAC selection ratio (DSR). The database manager may determine when to perform table maintenance to move rows of data to the appropriate DACs based on a timestamp or last check date (LCD) stored in the database.
机译:一种装置和方法利用分区的数据库表,该数据库表被划分为数据分配容器(DAC),其中,基于过去查询中的数据使用情况将数据放入DAC中。将最常用的记录放在一起,将不常用的记录放在一起以提高数据库性能。在优选实施例中,数据库管理器基于数据库查询使用DAC选择比率(DSR)选择数据的频率来确定将数据放置在DAC中的位置。数据库管理器可以基于存储在数据库中的时间戳或最后检查日期(LCD)确定何时执行表维护以将数据行移至适当的DAC。

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