Storing all credit card transaction data -- current and outdated, core and related -- in the warehouse negatively impacts the performance.

将所有信用卡事务数据——当前的和过期的、核心的和相关的——存储在数据仓库中会对性能造成负面影响。

youdao

Traditionally, a BI data warehouse receives data from source systems (usually the operational online transaction processing [OLTP] systems) but never provides data back to them.

传统上，BI数据仓库从源系统(常常是操作性联机事务处理[oltp]系统)接收数据，但是从不向它们返回数据。

youdao

Merge is especially useful in data warehouse (ETL) environments where transaction tables are merged with bigger warehouse tables.

Merge在数据仓库环境(etl)中特别有用，将其中的事务表合并到更大的仓库表中。

youdao

Instead, Travelocity consulted its data warehouse, a central repository for all the significant transaction and customer data that the site collects.

FORBES: The Resurrection of NCR