这需要在将来自事务系统的数据加载到数据仓库表中之前，对其进行转换。

This requires that the data from the transactional system be transformed before being loading into the warehouse table.

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业务系统收集的结构化源数据 — 关于患者、医疗索赔和供应商 — 通过提取、转换、加载（ETL）流程输入数据仓库。

Structured source data collected by operational systems—on patients, medical claims, and providers—was fed through extract, transform, load (ETL) processes into the data warehouse.

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例如，一些系统以常规调度加载数据仓库执行数据解压。

For example, some systems perform data extracts for data warehouse loading on a regular schedule.

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