As we've discussed in this article, the DB2 optimizer may choose a sub-optimal access plan when there are host variables or parameter markers in the SQL statement.
正如我们在本文讨论的，如果sql语句中存在主机变量或参数标记，那么DB 2优化器可能会选择一个次优化的存取计划。
Plan variables are scoped within a Plan, and can be used within either scripts or Tasks in different jobs.
Plan变量的生命周期就是Plan，并且可以在任何脚本或者在不同job的Task中使用。
One welcomed feature is that unlike Bamboo globals, Plan variables do not require administrator privileges to create them.
一个受欢迎的特性就是，不同于Bamboo中的全局变量，创建Plan变量并不需要管理员权限。
If you plan to import the generated Initiate.XML file through the GenerateInitiateGlossary.bat file, set the following variables.
如果计划通过GenerateInitiateGlossary . bat文件导入所生成的Initiate .XML文件，可设置如下变量。
We should take all the variables into account when we make a plan.
我们制订计划时应该把所有的可变因素考虑进去。
I built a simple, conservative model, and set the variables so that if things went according to plan, we would make a bit of money on top of covering those costs.
我构建了一个简单保守的模型，并设定了变量，这样如果情况按计划进行，我们就能在保证成本以外额外赚到一些钱。
We simplify the problems by using the linear weighted method, separate technique of partial control variables, and enumerating in certain range, then give out the solving plan of the model.
通过采用线性加权法、分离部分控制变量法，以及在一定范围内穷举，将问题简化，进而给出模型的求解方法。
These variables form the initial plan for a software enhancement project.
这些因素形成了改进软件项目的最初方案。
What with countless variables involving deductibles, co-pays, networks, and HSAs, choosing a health insurance plan is confusing and frustrating enough.
参杂了数不清的名目，包括免赔额、自付率、网络、医疗储蓄账户等，选择一项健康保险方案真是有够复杂烦人的。
What with countless variables involving deductibles, co-pays, networks, and HSAs, choosing a health insurance plan is confusing and frustrating enough.
参杂了数不清的名目，包括免赔额、自付率、网络、医疗储蓄账户等，选择一项健康保险方案真是有够复杂烦人的。
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