Suppose you're working on an application that holds two tables: One maps an employee name to a serial number and the other maps the serial number to a salary.
假设您的应用程序有两个表:第一个表将员工姓名映射到一个员工号,另一个将这个员工号映射到一个薪水记录。
With all the necessary relational values extracted from the source XML column, it's time to aggregate the two values needed for one of the target data warehouse tables (the DWADMIN.ACCT table).
从源xml列提取所有需要的关系值之后,便可以为一个目标数据仓库表(DWADMIN . acct表)聚合这两个值。
We then set up two tables in the living room and one in the dining room to form two tables of 8 and one of 10.
我们在客厅里放了两张桌子,每张可以坐8个人,餐厅里放了一张,可以坐10个人。
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