阅读说明：本技术 数据库系统中的日记表 (Diary watch in database system ) 是由 伊斯特凡·切里 托尔斯滕·格拉布斯 蒂埃里·克吕安斯 苏布兰马尼安·莫拉利达尔 本诺特·戴奇 于 2020-05-13 设计创作，主要内容包括：用于在包括快照和日志表的日记表中储存数据库数据的系统、方法和设备。方法包括定义包括快照和日志表的日记表,快照包括日记表中的数据在时间点处的最新表示。方法包括将时间戳分配给快照,时间戳指示快照是何时生成的。方法包括接收在日记表上执行事务以修改日记表中的数据的请求,事务包括插入、删除、更新或合并中的一个或更多个。方法包括将新行插入日志表中来代替在日记表的快照上执行事务,新行包括基于事务请求对日记表做出的更改的指示。(Systems, methods, and apparatus for storing database data in a diary watch including snapshots and a diary table. The method includes defining a diary table including a snapshot and a diary table, the snapshot including an up-to-date representation of data in the diary table at a point in time. The method includes assigning a timestamp to the snapshot, the timestamp indicating when the snapshot was generated. The method includes receiving a request to execute a transaction on the diary table to modify data in the diary table, the transaction including one or more of an insertion, a deletion, an update, or a merge. The method includes inserting a new row into the log table in place of executing the transaction on the snapshot of the log table, the new row including an indication of changes made to the log table based on the transaction request.)