📜  数据仓库和数据集市的区别

📅  最后修改于: 2021-09-08 15:32:23             🧑  作者: Mango

数据仓库数据集市都用于存储数据。

数据仓库和数据集市之间的主要区别在于,数据仓库是本质上面向数据的数据库类型。而数据集市本质上是面向项目的数据库类型。数据仓库和数据集市这两者之间的另一个区别是,数据仓库的范围很大,而数据集市的范围有限。

让我们看看数据仓库和数据集市之间的区别:

S.NO Data Warehouse Data Mart
1. Data warehouse is a Centralised system. While it is a decentralised system.
2. In data warehouse, lightly denormalization takes place. While in Data mart, highly denormalization takes place.
3. Data warehouse is top-down model. While it is a bottom-up model.
4. To built a warehouse is difficult. While to build a mart is easy.
5. In data warehouse, Fact constellation schema is used. While in this, Star schema and snowflake schema are used.
6. Data Warehouse is flexible. While it is not flexible.
7. Data Warehouse is the data-oriented in nature. While it is the project-oriented in nature.
8. Data Ware house has long life. While data-mart has short life than warehouse.
9. In Data Warehouse, Data are contained in detail form. While in this, data are contained in summarized form.
10. Data Warehouse is vast in size. While data mart is smaller than warehouse.