更新统计数据是最重要的管理任务之一，它确保优化器选用最佳的查询执行计划。
Updating statistics is one of the most important administrative tasks that ensure the optimizer picks optimum execution plans for your queries.
上面的suma命令将返回一个suma任务ID，稍后在执行计划任务的立即下载时会使用到这个任务ID。
The above suma command will return a suma task ID that might later be used to perform an immediate download of a schedule task.
您可能希望重新部署应用程序，以避免因执行计划的维护任务而造成的停机时间，或者通过将应用程序移动到一台功能更强大的服务器来提高性能。
You might want to relocate applications to avoid downtime resulting from scheduled maintenance or to improve performance by moving an application to a more powerful server.
如果在执行计划顺序(比如，习惯)时，你规划好一个预计连续时间表，从一个任务到另一个任务转换，你就会动用比较少的心理能量。
If you block out scheduled uninterrupted times when you execute planned sequences (i. e. habits) you will use less mental energy trying to switch from task to task.
如果在执行计划顺序(比如，习惯)时，你规划好一个预计连续时间表，从一个任务到另一个任务转换，你就会动用比较少的心理能量。
If you block out scheduled uninterrupted times when you execute planned sequences (i. e. habits) you will use less mental energy trying to switch from task to task.
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