Another benefit of summary tables is that they let you compare results from two different fact tables (maybe even in separate data marts) that have different grains.

汇总表的另一个好处是支持对有不同粒度的两个事实表(甚至可能位于单独的数据市场中)进行比较。

youdao

I am attempting to compare two inventory lists; the current month vs. the previous month. This data is housed in two separate tables.

我试图比较两个库存清单；本月与上月。这个数据被安置在两个不同的表。

youdao

Utility is used to compare the data in two tables for non-convergence, and is particularly useful for troubleshooting non-convergence in a replication topology.

实用工具用于比较两个非收敛的表中的数据，它对于排除复制拓扑中的非收敛故障非常有用。

youdao