📅 最后修改于: 2020-12-11 01:54:24 🧑 作者: Mango
尽管DBMS和RDBMS都用于在物理数据库中存储信息，但是它们之间还是存在一些显着差异。
DBMS和RDBMS之间的主要区别如下：
| No. | DBMS | RDBMS |
|---|---|---|
| 1) | DBMS applications store data as file. | RDBMS applications store data in a tabular form. |
| 2) | In DBMS, data is generally stored in either a hierarchical form or a navigational form. | In RDBMS, the tables have an identifier called primary key and the data values are stored in the form of tables. |
| 3) | Normalization is not present in DBMS. | Normalization is present in RDBMS. |
| 4) | DBMS does not apply any security with regards to data manipulation. | RDBMS defines the integrity constraint for the purpose of ACID (Atomocity, Consistency, Isolation and Durability) property. |
| 5) | DBMS uses file system to store data, so there will be no relation between the tables. | in RDBMS, data values are stored in the form of tables, so a relationship between these data values will be stored in the form of a table as well. |
| 6) | DBMS has to provide some uniform methods to access the stored information. | RDBMS system supports a tabular structure of the data and a relationship between them to access the stored information. |
| 7) | DBMS does not support distributed database. | RDBMS supports distributed database. |
| 8) | DBMS is meant to be for small organization and deal with small data. it supports single user. | RDBMS is designed to handle large amount of data. it supports multiple users. |
| 9) | Examples of DBMS are file systems, xml etc. | Example of RDBMS are mysql, postgre, sql server, oracle etc. |
观察DBMS和RDBMS之间的区别之后，可以说RDBMS是DBMS的扩展。当今市场上有许多与DBMS和RDBMS兼容的软件产品。今天，RDBMS应用程序就是DBMS应用程序，反之亦然。