第二，数据仓库在导入初始阶段的数据后，在日常运行中，数据仓库内的数据需要定期进行更新。
Secondly, when DW which has loaded initial operational data is in an ordinary day's work, warehouse data must be regularly refreshed.
第二，数据仓库在导入初始阶段的数据后，在日常运行中，数据仓库内的数据需要定期进行更新。
Secondly, when DW which has loaded initial operational data is in an ordinary day's work, warehouse data must be regularly refreshed.
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