Data mart: subset of a data warehouse in a more user-friendly data structure.
数据集市：更加用户友好的数据结构中的数据仓库的子集。
Business activities will appear during the warehouse explosion, explosion may close the new user registration.
商搞活动会出现爆仓问题，爆仓期间可能会关闭新用户注册。
Business activities will appear during the warehouse explosion, explosion may close the new user registration.
商搞活动会出现爆仓问题，爆仓期间可能会关闭新用户注册。
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