predicates

英 [ˈpredɪkeɪts]

美 [ˈpredɪkeɪts]

n.  谓语(句子成分，对主语加以陈述，如John went home中的went home)
v.  使基于; 使以…为依据; 表明; 阐明; 断言
predicate的第三人称单数和复数

柯林斯词典

The noun is pronounced /'predɪkət/. The verb is pronounced /'predɪkeɪt/. 名词读作 /'predɪkət/。动词读作 /'predɪkeɪt/。


• 谓语
  In some systems of grammar, thepredicateof a clause is the part of it that is not the subject. For example, in 'I decided what to do', 'decided what to do' is the predicate.
• VERB 基于；取决于；以…为基础
  If you say that one situationis predicated onanother, you mean that the first situation can be true or real only if the second one is true or real.
  1. Financial success is usually predicated on having money or being able to obtain it.
     先要有钱或者能弄到钱才能够赚钱。

双语例句

• Include WHERE clause predicates for only the columns that are important and relevant to us.
  在重要的、与我们相关的列中包含WHERE子句谓词。
• Consider only the most important columns for the most important queries that have selection predicates for these distribution statistics.
  对于这些分布统计信息，只考虑对拥有选择谓词的最重要的查询而言最为重要的列。
• For example, assume your queries contain predicates on area codes and on full phone numbers.
  例如，假定您的查询包含区号和完整电话号码上的谓词。
• The information about predicates is inferred using the available query workloads.
  关于谓语的信息可以使用可用查询工作负载进行推测。
• That means you can use them to index selected elements and attributes that are frequently used in predicates and joins.
  这意味着可以使用它们来索引频繁在谓词和连接中使用的所选择的元素和属性。
• The application of one or more predicates may reduce the output stream cardinality.
  应用一个或更多谓词可以减少输出流基数。
• This is not useful since queries would typical not use such concatenated values in their predicates.
  此索引项是没有用的，因为普通查询不会在其谓词中使用此类串联值。
• Additional local predicates that are not automatically provided by DB2 that can provide predicate transitive closure.
  其他的非DB2自动提供的，而又能提供谓词传递闭包的本地谓词。
• You can drill down multiple levels in a query to specify nested predicates, clauses, and expressions.
  您可以在一个查询中钻取多层，以指定嵌套的谓词、子句和表达式。
• For example, what if the two local predicates are not as selective as estimated by the optimizer?
  例如，如果这两个本地谓词选择性没有优化器评估的强，怎么办？