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. |