However, in the absence of data distributions, the database server calculates selectivity for filters of different types based on table indexes.
但是,如果没有数据分布,则数据库服务器根据表索引计算不同类型的过滤器的选择率。
The optimizer, in the absence of current statistics, is choosing to do a table scan on both tables involved in the join.
在缺少当前统计的情况下,优化器选择对参与联接的两个表进行表扫描。
However, in the absence of data distribution information, the optimizer will calculate selectivity for filters of different types based on table indexes.
然而在缺乏数据分布信息的情况下,优化器将基于表索引计算不同类型筛选器的选择性。
The empty seat at the dinner table is a reality in most American households, whether that absence is the result of distance, unresolved drama or the inevitable death in the family.
无论是因为距离遥远,未解决的事情或在家庭中不可避免的死亡,饭桌缺席是大多数美国家庭的现实情况。
Refer to Chapter 10 of the Performance Guide for the detailed table that the optimizer USES to calculate selectivity in the absence of data distribution.
关于在缺乏数据分布的情况下,优化器用以计算选择性的详细表,请参阅performanceGuide的第10章。
In the absence of table joins, de-normalization is often used in HBase to keep related information in one table.
在缺乏表连接时,HBase通常使用去规范化(de - normalization)来将相关信息保存在一个表中。
In the absence of such a rule, you can usually combine both tables into one table without breaking any normalization rules.
缺乏这样一条规则,就是在这种关系下,你可以把两个表合并为一个表,而不打破正常化的规则。
Table. 1 1 In vivoinhibition of respiration pathways by the respirtion inhibtors. Oxygen uptakeby leaves in the absence of any inhibitors was denoted as the 100% value.
表.1光照下呼吸抑制剂对呼吸途径的抑制率。以无抑制剂处理叶片的呼吸速率作为100%。
Table. 1 1 In vivoinhibition of respiration pathways by the respirtion inhibtors. Oxygen uptakeby leaves in the absence of any inhibitors was denoted as the 100% value.
表.1光照下呼吸抑制剂对呼吸途径的抑制率。以无抑制剂处理叶片的呼吸速率作为100%。
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