You can put available collations in effect to impact relational operators eq, le, and so forth.
可以让选择排列生效，影响关系运算符eq、le等。
It can be composed of multiple subexpressions that use the different relational operators supported in Python.
它可以包括多个使用Python中支持的不同关系运算符的子表达式。
Any of the relational operators you've seen earlier in this chapter can be used to produce a conditional statement.
本章早些时候接触到的所有关系运算符都可拿来构造一个条件语句。
The sample data flow needs two XML Relational Mapping operators.
示例数据流需要两个XMLRelationalMapping操作符。
The output from one of the XML Relational Mapping operators (shown on the lower branch of Figure 4) can feed the target table directly.
一个XMLRelationalMapping操作符（见图4下方的分支）的输出可以直接用于填充目标表。
Just before saving the completed mashup, you should turn off caching in all source operators that use relational update feeds.
在保存完成的混搭之前，应在所有使用关系型更新数据源的source操作符中关闭缓存。
There is no SQL statement associated with each of the RPD operators because ORDERS and ORDER_ITEMS are not relational nicknames.
这里没有与每个RPD操作符相关的sql语句，因为ORDERS和ORDER_ITEMS不是关系昵称。
Symmetric operators, such as the arithmetic, equality, relational, and bitwise operators, are best defined as ordinary nonmember functions.
对称的操作符，如算术操作符、相等操作符、关系操作符和位操作符，最好定义为普通非成员函数。
The derived relational algebra operators are widely used in the relational database query languages.
关系代数的派生算子在关系数据库查询语言中得到了广泛应用。
The derived relational algebra operators are widely used in the relational database query languages.
关系代数的派生算子在关系数据库查询语言中得到了广泛应用。
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