ordered_predicates提示在查询的WHERE子句e指定的,并被用来指定布尔判断(Boolean predicate)被评估的顺序。在没有ordered_predicates的情况下,Oracle会使用下面这些步骤来评估SQL判断的顺序:
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Methods that return Boolean values are called predicate methods and play an important role in programming.
返回Boolean类型结果的方法成为断言方法,在编程中有着重要的地位。
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interface Predicate extends Expression)。
According to Boolean algebra, removing minterms is used for a new algorithm about the supremal controllable predicate, which is the most important problem in Supervisory control of DES.
文中结合布尔代数,采用移除最小项的方法,提出了解决离散事件系统监控理论中最关键的问题——计算最大能控子谓词的一种新算法。
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