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因为联机事务处理和批处理作业可以在同一服务器资源中同时执行，所以可避免代价高昂的资源重复。
Because online transaction processing and batch jobs execute simultaneously on the same server resources, you can avoid costly duplication of resources.
再举一个例子：IT运营经理接到通知，一个装载事实表的ETL作业在处理准备阶段DB 2 _ Input_Facts中读取输入时失败了。
In another example, the it Operational Manager has been notified that an ETL job for loading the fact table has been aborted when reading its input in the processing stage DB2_Input_Facts.
在将作业重写成SQL的过程中，就有效地将作业从典型的ETL作业转换成所有处理都在数据库引擎中进行的作业。
In re-writing the job into SQL, you have effectively transformed the job from a typical ETL task into one where all the processing occurs within the database engine itself.
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