简要说明你的计划方案并估计预算。
A brief description of your proposed project, and an estimated budget.
白宫估计，他们的计划会把那个缺口缩小8万亿美圆左右。
The White House estimates that its plans would reduce that gap by some $8 trillion.
但是，如果怀疑结果应该少于或者多于5行，您可以确定“实际基数”并将其与访问计划中的“估计基数”比较。
However, if you suspect that the result should be less or more than 5 rows, you can determine and compare the "real cardinality" with the "estimated cardinality" in the access plan.
第四，在项目的不确定性和项目计划以及相关估计中取得平衡。
Fourth, balance project plans and associated estimates with the uncertainty of a project.
图13显示了在测试计划中定义高层次估计的范例。
Figure 13 shows an example of defining high-level estimates within the test plan.
统计视图和REOPT都使优化器可以计算出更精确的基数估计，而后选择一个最佳查询执行计划。
Both statistical views and REOPT allow the optimizer to compute a more accurate cardinality estimate and consequently choose an optimal query execution plan.
片段实绩使您能够查看访问计划的真实基数与估计基数的对比。
Section actuals permit you to see what the real cardinalities are vs. estimated cardinalities in an access plan.
当客户强调可能充满不确定估计的详细的项目计划时，此问题是混合的。
This problem is compounded when the client insists on detailed project plans that are likely to be filled with uncertain estimates.
解释实用工具输出能够很方便地显示实际基数(片段实绩)和估计的基数计划值，供您进行比较。
The explain facility output conveniently displays the real cardinality (section actuals) and the estimated cardinality plan values for your comparison.
在计划阶段，SR候选列表会确定，而且开发团队会对这些需求确立初步的规模估计。
In plan phase, the SR candidate list is firmed up, and the development team builds low-level sizings for these requirements.
国际金融协会(IIF)估计该计划将银行和保险公司持有的债券价值消减21%。
The IIF reckons the plan will cut the value of the bonds held by Banks and insurers by 21%.
当查询性能中出现例外情况时，优化指南和统计视图特性对于弥补访问计划估计的不准确性非常有用。
Optimization guidelines and statistical views are useful features to compensate the access plan evaluations when exceptions in query performance occur.
但是，他估计定位这样一个行星还需要几年时间——知道开普勒计划的末期。
But, he estimated that pinpointing any Earth-like planets is still a few years off-near the end of the Kepler mission as it stands.
清单2中的访问计划片段表明IXSCAN操作估计将返回4.85057(约5)行。
The plan segment from the access plan in Listing 2 indicates that the IXSCAN operation will return an estimated number of 4.85057 (approximately 5) rows.
基数(cardinality)表示访问计划操作符所返回的行的估计数目。
The cardinality represents the estimated number of rows returned from the access plan operator.
事实上，这项计划本身估计就有10.0万居民没有运输手段。
In fact the plan itself estimates that 100,000 residents would have no means of transport.
您可能已经注意到了，查询访问计划本身并未随着基数估计值的增大而改变。
You may have noticed that the query access plan itself did not change with the increase in cardinality estimate.
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。
At each operator in the access plan, the optimizer estimates the cardinality output from the operator.
在您计划时，您要估计，发现您不能完成您想要做的一切事情，商议范围，确定交付日期并且分配工作。
When you plan, you estimate, find out that you cannot do everything that you want to do, negotiate scope, put dates to deliverables, and assign work.
当然，没有一个项目会完全依照估计和计划那样进行的。
Of course, no project ever proceeds entirely as it was estimated and planned.
优化器凭借精确的基数估计值来准确计算出每一个待定查询访问计划的成本。
The optimizer is dependent on accurate cardinality estimates to properly compute the cost of each query access plan considered.
优化器凭借精确的基数估计值来准确计算出每一个待定查询访问计划的成本。
The optimizer depends on accurate cardinality estimates to properly compute the cost of each query access plan considered.
商业计划书会促使你评估自己的产品或服务的市场，并估计竞争的规模。
It makes you evaluate the market for your product or service and size up the competition.
在测试项目的早期阶段，您可以提供高层次的完成测试计划活动所需时间的估计，以及运行所有测试所需的时间和精力的估计。
In the early stages of a test project, you can provide high-level estimates of the time required to complete your test planning activities, and the time or effort required to run all of your tests.
生成访问计划，查看优化器对该查询返回的总基数(行数)的估计值。
Generate the access plan and see what the optimizer estimates the total cardinality (Number of rows) returned by the query will be.
据估计，这项计划的全部耗资将达到数千亿美元。
Total costs for the plan are estimated in the hundreds of billions of dollars.
优化器将选择该查询计划，因为其执行的估算成本是所有被估计划中最低的。
The optimizer chose this query plan because the estimated cost for its execution was the lowest among all the evaluated plans.
从理论上讲，风险评估计划如获通过，将会放慢或停止批准计划建设激光厂的商业许可证或者可能的结果是设计得到改进。
In theory, the risk-assessment plan, if adopted, could slow or stop the granting of a commercial license for the proposed laser plant or could result in design improvements.
我们有一个清晰的技术方案，更加可靠的估计和我们觉得能够完成的时间计划。
We had a clean technical solution, more reliable estimates, and a schedule that (although tight) we felt would get us to the end.
我们有一个清晰的技术方案，更加可靠的估计和我们觉得能够完成的时间计划。
We had a clean technical solution, more reliable estimates, and a schedule that (although tight) we felt would get us to the end.
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