At each operator in the access plan, the optimizer estimates the cardinality output from the operator.
对于访问计划的每个操作符，优化器将估计该操作符的基数输出。
The example in Listing 3 shows how you can use this operator in combination with the !$ operator.
清单3中的示例显示可以如何将此操作符与 ! $ 运算符组合使用。
Drag this operator to the right of the existing data flow operator.
把这个操作符拖到现有数据流操作符的右边。
There is another option: for Apple to set up as a mobile operator itself, by leasing network capacity from an existing operator.
另一种选择是：苹果公司通过从现存的网络运营商，租借网络使用权来建立自己的网络。
As with the UNION operator, the join operator itself remains synchronous and is only able to process input from one leg of the join at a time.
和UNION操作符一样，连接操作符本身是同步的，每次只能处理来自连接操作符某一个分支的输入。
So this is the equality operator, whereas the single equal sign is the assignment operator.
所以这是相等操作符，然而那个单等号是一个赋值运算符。
Step 4: All operators are binary, which means that the first operand is positioned before the operator, and the second operand is positioned after the operator.
步骤4：所有的操作符都是二元的，也就是说第一个操作数位于操作符之前，第二个操作符位于操作符之后。
You can also use the repeat operator, which you may recognize as the multiplication operator, to build up a bigger list from small segments.
您还可以使用重复运算符，可以将该运算符识别为乘法运算符，以便从小片段中构建更大的列表。
This new operator is, in fact, a shortcut notation for the ternary operator.
这个新操作符实际上是一个三目操作符的便捷记法。
The function of this operator is similar to the AND operator, but it only applies to the word immediately following it.
这个操作符的作用和AND差不多，但它只对紧跟着它的一个搜索词起作用。
These signals are then broadcast from operator to operator until they reach a network member in an area where the Internet functions.
然后，这些信号被一个操作员一个操作员地传递下去，直到抵达一个网络正常的区域。
To get a more selective match for such cases, use either the enforce operator (+) or an explicit Boolean operator (AND) in the keyword search.
要在对这样的情况使用更多选择的匹配，需要在搜索关键词中使用强制操作符（+）或显式的逻辑操作符（AND）。
Note: the details window can also be opened by clicking on the dropped operator or from the context menu of the operator.
注意：也可以单击被拖放的操作符或者从操作符上下文中打开细节窗口。
Precedence or operator strength determines order of evaluation; an operator with higher precedence is evaluated before one of lower precedence.
优先级或者说操作符的强度决定求值顺序；优先级高的操作符比优先级低的操作符先求值。
An operation can be a relational operator, a system - or user-defined function, or an SQL operator, such as GROUP BY, ORDER BY, and so on.
操作可以是一个关系运算符，或者系统或用户定义的函数，也可以是一个sql操作符，例如GROUPBY、ORDER BY等。
When the first source operator is dropped on an empty canvas, a publish operator is automatically created.
当将第一个源操作符拖放到空白的画布上时，会自动创建一个发布操作符。
Like the existing relational index scan operator for relational indexes (IXSCAN), the XISCAN operator performs lookups or scans on XML indexes.
类似于现有的用于关系索引的关系索引扫描操作符(IXSCAN)，XISCAN操作符在xml索引上执行查找或扫描。
As you've seen, operator AD hoc polymorphism, or operator overloading to the rest of us, can be quite powerful if carefully employed and documented.
可以看到，操作符的即时多态，或操作符重载，对于我们来说，如果小心使用和记录，会非常强大。
The PRIOR operator can be located left or right of the comparative operator.
PRIOR运算符可放在比较运算符的左边或右边。
In this case, the exponentiation operator is another form of binary operator so the existing BinaryOp case class serves.
在本例中，求幂运算符是另一种形式的二进制运算符，所以使用现有BinaryOp case类就可以。
Listing 15 applies the decltype operator on a variable and shows the usage of the operator with an expression.
清单15对一个变量应用decltype操作符，演示对表达式使用这个操作符的方法。
Connect the Start operator to the input of the first data flow operator.
把Start操作符连接到第一个数据流操作符的输入。
Connect the second data flow operator to the End operator.
把第二个数据流操作符连接到end操作符。
Connect the Email operator to the Fail operator using an unconditional connection.
使用无条件连接把Email操作符连接到fail操作符。
Here, the entire query is executed by the Oracle server, so you only see a RETURN operator without any SHIP operator.
在这里，整个查询都由Oracle服务器执行，所以只能看到一个return操作符，而看不到任何ship操作符。
The capture operator is the parentheses, and the operator can appear anywhere in the regex.
capture操作符是一些括号，并且操作符可以出现在regex中的任意位置。
The CNot operator, like the Not operator is its own inverse.
CNot运算符同Not运算符一样，是它本身的逆。
The last operator in the flow is a table Target operator pointing to a table where you want to write the annotations.
数据流中的最后一个操作器是指向您希望写入注释的表的TableTarget操作器。
The goal here is to avoid accidentally using the single-equals assignment operator instead of the double-equals comparison operator
目标在于避免意外地使用单等号赋值运算符而非双等号比较运算符
When you're building a list, you use the: operator, called the cons operator (for construct).
在构建列表时，使用：操作符，叫做构造(cons)操作符(用来构造)。
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