set of clause的意思|示意

As with any database update query, you must pass the YQL query a list of fields to be updated, together with their new values, and a WHERE clause that restricts the update to a set of records.

与任何数据库update查询一样，您必须向YQL查询传递要更新的字段列表，以及其新值和将更新限制为一组记录的一个where子句。

If you use XML predicates in the XMLQUERY function in the select clause of an SQL statement, these predicates do not eliminate any rows from the result set and therefore cannot use an index.

如果在sql语句的select子句的XMLQUERY函数中使用xml谓词，则这些谓词不会从结果集中排除任何行，因此不能使用索引。

Because of the type clause in the class definition, my parameter types coming into the map method are set along with the outputs of this method inside the context.write clause.

由于类定义中的类型子句，我将传入map方法的参数类型设置为在context . write子句内带有该方法的输出。

XMLQUERY is often used in the SELECT clause of an SQL query to extract or construct XML values based on the XML document in a given row of the result set.

在SQL查询的select子句中，常常使用XMLQUERY根据结果集的给定行中的XML文档提取或构造xml值。

Use two commas, not one, to set off a nonrestrictive clause in the middle of a sentence.

同样的，前者由非限制性定语从句构成。 但在科技文中，你需要将其转换成名词结构。

If the number of tuples, calculated by using the Cartesian product, exceeds the set threshold; the NON EMPTY clause is applied to the query.

如果通过使用Cartesian产品计算的元组数超过设定的阈值，将NON empty子句应用于查询。