📜  数据库系统和数据仓库的区别

📅  最后修改于: 2021-09-12 10:33:23             🧑  作者: Mango

数据库系统:
数据库系统用于存储和检索数据的传统方式。数据库系统的主要任务是进行查询处理。这些系统通常被称为在线事务处理系统。这些系统用于组织的日常运营。

数据仓库:
数据仓库是存储大量数据的地方。它适用于担任数据分析和决策角色的用户或知识工作者。这些系统应该以不同的格式和不同的形式组织和呈现数据,以满足特定用户针对特定目的的需求。这些系统被称为在线分析处理。

数据库系统和数据仓库的区别:

Database System Data Warehouse
It supports operational processes. It supports analysis and performance reporting.
Capture and maintain the data. Explore the data.
Current data. Multiple years of history.
Data is balanced within the scope of this one system. Data must be integrated and balanced from multiple system.
Data is updated when transaction occurs. Data is updated on scheduled processes.
Data verification occurs when entry is done. Data verification occurs after the fact.
100 MB to GB. 100 GB to TB.
ER based. Star/Snowflake.
Application oriented. Subject oriented.
Primitive and highly detailed. Summarized and consolidated.
Flat relational. Multidimensional.