You pass a formula used as a predicate to see if it is a valid rule for the element.
您传递一个用作谓词的公式，检查它是否是一个有效的元素规则。
When a character adjective is used as a predicate, it is generally on the occasions of contrast, questions and answers, etc, and it has comparative characteristics.
性质形容词单独做谓语时，一般用在问答、比较等场合或带上“了”字，包含有一定的比较性特征。
A triple's subject and predicate must be expressed as URIs to make them completely unambiguous, and standard schemas and best practices for doing this with popular domains are gaining maturity.
三元组的主语和谓语必须表达为uri，以便彻底明确，并且利用流行领域做这件事情的标准模式和最佳实践变得越来越成熟。
SPARQL is designed to query data represented with the RDF data model, which represents data as a collection of triples, each of which has a subject, a predicate, and an object.
SPARQL被设计用来查询以rdf数据模型表示的数据，这种数据模型用一个三元组来表示数据，每个三元组都具有一个主语、一个谓语和一个宾语。
As you see in Table 3, a string predicate can only be evaluated with an XML index of type VARCHAR, while a numeric predicate can only be evaluated with an index of type DOUBLE.
正如您在表3中所看到的，字符串谓词只能由varchar类型的xml索引进行计算，而数值谓词只能由double类型的索引进行计算。
There is also a new feature for the LIKE predicate that makes it possible to use a column reference as pattern expression.
LIKE谓词有一个新特性，允许使用列引用作为模式表达式。
As an alternative to value comparisons, you can use the self axis (denoted by a dot ". ") to express a "between" predicate.
除了值比较，还可以使用self轴(由点“。”表示)来表达“between”谓词。
The third predicate uses the star (*) as a wildcard such that it looks for any child element under "book" with a value of 29.
第三个谓词使用了星号 (*)作为通配符，这样它将查找 “book”下值为 29 的任何子元素。
The selectivity of a predicate is defined as.
谓词的选择性定义如下。
Finding all the weblogs mentioned in the list is a simple matter of calling the blogs method, which performs a query for all the objects of statements with foaf: weblog as their predicate.
调用blogs方法就可以很容易地找到清单中列出的所有weblog，这个方法的谓词是查询所有foaf：weblog声明的对象。
For example, if COL1 is a character column of length one, a predicate like COL1 BETWEEN '2' AND '4' could be rewritten as COL1 IN (' 2 ', '3', '4').
例如，如果COL1是一个长度为1的字符列，像COL1BETWEEN'2 'AND '4 '的一个谓词可能被重写为COL1IN (' 2 '，'3 '，' 4 ')。
where the <VALUE LIST> is a comma separated list of one or more literals, as described for the local equality predicate.
其中 <VALUELIST>是一个以逗号隔开的一个或多个上述（在本地等式谓词中）literal 的列表。
Just as each progressive portion of an XPath is based on the set of nodes determined by the preceding path, the predicate of a set is based on the set that you apply it to.
就像XPath后面的部分依赖于前面路径所决定的节点集一样，集合的谓词也依赖于所应用的集合。
Predicate, which evaluates to a Boolean value of true or false. (in fact, it is declared as interface Predicate extends Expression.)
其计算为布尔值true或false(事实上，它被声明为interfacePredicateextends Expression)。
As a slightly more sophisticated example, here is a query involving a spatial join, that is, a join where the join predicate is a spatial function.
作为一个稍微复杂些的示例，下面给出一个涉及空间联结(即其中的联结谓词是空间函数的联结)的查询。
Each child element (such as) represents a predicate.
每个子元素(比如)代表一个谓语。
Because every statement has a subject, predicate, and object, it is also referred to as a triple.
由于每个命题都有主语、谓词和宾语，也被称为三元组。
The clauses of the query - such as its selection terms, the selection predicate in a WHERE clause, and ordering terms in an order BY clause - can all be mutated.
可以改变查询的子句，比如它的选择条件、WHERE子句中的选择谓词和ORDERBY子句中的排序条件。
The LIKE predicate can therefore be used as a fuzzy join predicate.
因此，可以使用like谓词作为模糊联结谓词。
The subject and predicate are always named by a URI, and since an LSID is a URN, which is a kind of URI, LSIDs can be used as either RDF statements or predicates.
主语和谓语始终由URI命名，由于LSID是一个URN，而URN是一种URI，所以LSID既可用作rdf语句，也可用作谓语。
Otherwise, use the predicate condition (p) passed as a parameter.
否则，使用谓语条件(p)作为参数传递。
The use of table names is simpler, but using table identifiers is a more powerful mechanism because it can refer to a derived quantifier, such as an 'xmlexists' predicate.
使用表名比较简单，但是使用表标识符的功能更加强大，因为它可以指代一个派生的限定符，比如一个 “xmlexists” 谓词。
At last predicate logic is combined with production KR, as which a method to describe the reasoning rule in the knowledge base.
最后采用谓词逻辑和产生式表示法相结合的方法作为知识库中的推理规则描述方法。
To delete only one of the phone elements, you can use a predicate in the MODIFY clause, such as modify do delete $new/customerinfo/phone[@type = "work"].
如果只希望删除 “phone”元素之一，那么可以在MODIFY 子句中使用一个谓词，比如 modifydodelete $new/customerinfo/phone[@type = "work"]。
At last predicate logic is combined with production KR, as which a method to describe the warning rule in the knowledge base.
最后用谓词逻辑和产生式表示法相结合作为知识库中预警规则的描述方法。
Based on guideline (c), you can ignore a separate count query for TBSCAN (4) as the join predicate being resolved is the same as in NLJOIN (2).
按照原则(c)，可以忽略tbs CAN(4)的单独count查询，因为解析的连接断言和NLJOIN(2)相同。
This is a sargable predicate, but not an index-sargable predicate (that is, it cannot be applied as a start/stop key on the index scan).
这是一个sargable谓词，而不是一个索引sargable 谓词（即，它不能作为索引扫描的开始/停止键）。
The Is method is the most flexible because it lets you supply a predicate that causes a parameter match if it returns true, as shown in Listing 6-30.
方法是最灵活的，因为它让你提供一个谓词，如果它为真，则引发一个参数匹配，如清单6-30所示。
The Is method is the most flexible because it lets you supply a predicate that causes a parameter match if it returns true, as shown in Listing 6-30.
方法是最灵活的，因为它让你提供一个谓词，如果它为真，则引发一个参数匹配，如清单6-30所示。
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