The optimizer would chalk out a query plan before performing the actual join operation itself by making use of the statistical data.

在执行实际的连接操作之前，优化器使用统计数据制定一个查询计划。

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Let's chalk out the last part of the work today.

让我们今天把最后部分工作的计划制订出来。

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However, you need to chalk out a clear-cut plan on what type of business you are going to do and also what are your goals.

你需要粉笔出明确的计划，你是什么类型的生意也要做您的目标。

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