如我所说的,SQL指定了要检索或操作什么数据,但没有指定数据库如何完成这些任务。
As I mentioned, SQL specifies what data to retrieve or manipulate, but does not specify how the database accomplishes these tasks.
在这种情况下,DB 2 UDB服务器上的调度程序需要连接到工具目录数据库,以便检索运行任务需要的信息。
In this case, the scheduler on the DB2 UDB server needs to connect to the tools catalog database in order to retrieve any required information about the tasks to be run.
当然,如果任务做了一些有趣的事情,则您可以将此数据保存到数据库并在以后检索它 — 这是我将要向我的用户的 Twitter 转发的。
Of course, if a task does something interesting, you can save that data into the datastore and retrieve it at some later point — which is what I'm going to do with my user's Twitter retweets.
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