When this attribute is not specified, the optimizer makes a cost-based decision to select an access plan for the given table.
如果未指定该属性,优化器将生成一个基于成本的决策,为给定的表选择一种访问计划。
Automation of both functional and load test scripts are specified here because the cost of manually testing a multitude of applications with every change quickly becomes unaffordable.
这里之所以强调功能和负载测试脚本的自动化,是因为手动测试大量应用程序每个更改的成本极其高昂。
In this equation, Y represents the cost of a specified unit in a production run.
在这个方程序中,Y表示在生产中生产一个单位的成本。
应用推荐