merge vt. 吞没,吸收;使消失(在…中) (in; into); 【法律】合并(公司等)使并入,使结合,融合 (into; with)。 All fear was merged in curiosity. 在好奇心驱使下忘了一切恐怖。 vi. 被吞没,被吸收,收入,消没在;合并,并入。 The twilight merged into darkness. 薄暮已消失在黑暗之中。 merge with the masses 同群众打成一片。
If the query includes a join , the optimizer must determine the join plan hash , sort merge , or nested loop , and the order in which tables are evaluated or joined 如果该查询包含了连接,那么优化器就必须确定连接计划( hash 、 sort merge或nested loop ) ,以及评估或连接表的次序。
Join plan directives that force optimizer to use the designated join method to join tables in the query , either nested loop join , sort merge join , or dynamic hash join 连接计划指示,强制优化器使用指定的连接方法来连接查询中的表,要么是嵌套循环连接、分类合并连接,要么是动态哈希连接。
For detecting - analyzing method based on snapshot difference , we implement these snapshot differential algorithm : sort merge algorithm , partition hash algorithm and window algorithm . for detecting - analyzing method based on log , we discuss the analyzing method of log on two relation database systems - oracle and sql server 对基于快照差分的检测分析方法,我们实现了三种快照差分算法: sortmefge算法、 partitionhash算法和wndow算法;对基于日志的检测分析方法,讨论了oracle和sqlserver两种关系数据库的日志分析方法。