您要查找的是不是：
- unary subquery 一元查询
- The unary minus produces the negative of the value. 一元减号得到的运算对象的负值。
- Does the Subquery Return at least One Row? 子查询至少要求返回一行么？
- There are unary composites as well. 同样，也有一元的合成。
- Yes.See Section 13.2.8, “Subquery Syntax”. 当然了.;请查看手册的子查询章节
- Often a subquery can substitute a temporary table. 通常一个子查询可以代替一个临时表。
- The unary plus produces the positive of the value. 一元加号能得到的运算对象的正值。
- Unary composites hold only a single subject. 一元的合成仅包含一个单独的子项。
- A unary operator such as Minus is left as an exercise. 像负号这样的一元运算符就留给读者练习。
- Missing subquery or the operator you entered requires parenthesis. 缺少子查询或输入的运算符需要圆括号。
- A subquery in a comparison test must return exactly one value. 比较测试中的子查询必须恰好返回一个值。
- What fraction of queries that were optimized contained a subquery? 所优化查询的哪一部分包含子查询?
- Functor takes a binary function and two unary functions as input. 仿函数取一个二元函数和两个一元函数作为输入。
- The unary + (plus) operator yields its numeric argument unchanged. 一元运算符+(加)不改变其数值型操作数.
- Otherwise, the IIf function uses the unary operator of the child member. 否则,IIf函数将使用子成员的一元运算符。
- Unary operators have one parameter, and binary operators have two parameters. 一元运算符具有一个参数,二元运算符具有两个参数。
- The unary - (minus) operator yields the negation of its numeric argument. 一元运算符-(减)对其数值型操作数取负.
- Hash A unary function object type that acts a hash function for a Value. 一元函数对象类型，用作Value的散列函数。
- Cannot perform an aggregate function on an expression containing an aggregate or a subquery. 中文说：不能对包含聚合或字查询的表达式执行聚合函数。
- The unary minus (-) and unary plus (+) are the same operators as binary minus and plus. 一元减号(-)和一元加号(+)与二元加号和减号都是相同的运算符。
