1. SQLite：
SQLite 是一个提供关系数据库管理系统 (RDBMS) 的软件库。它由 D. Richard Hipp 于 2000 年 8 月设计。SQLite 的设计目标是允许程序在不安装数据库管理系统 (DBMS) 或不需要数据库管理员的情况下运行。
MySQL的一些特性是——
- 高可靠性
- 嵌入式
- 事务遵循 ACID 属性
2. PostgreSQL :
它是一个功能强大的开源对象关系数据库系统。由于其高稳定性，它以低维护工作提供良好的性能。 PostgreSQL 是第一个实现多版本并发控制 (MVCC) 功能的 DBMS。
PostgreSQL 的一些亮点是——
- 支持大量语言
- 它处理高级安全功能
- 它具有地理标记支持
SQLite 和 PostgreSQL 的区别：
| S.NO. | SQLITE | POSTGRESQL |
|---|---|---|
| 1. | Developed by D. Richard Hipp on August 2000. | Developed By PostgreSQL Global Development Group on 1989. |
| 2. | It is widely used in-process RDBMS. | It is widely used open source RDBMS. |
| 3. | Implementation language is C. | Implementation language is C. |
| 4. | It has no Secondary database models | It has Document store as Secondary database models |
| 5. | It does not supports XML format. | It supports XML format. |
| 6. | SQLite does not require a server to run. Hence, it is serverless. | Server operating systems for PostgreSQL are FreeBSD, Linux, OS X, Solaris and Windows. |
| 7. | It does not support Server-side scripting | It has user defined functions for Server-side scripts |
| 8. | It does not support any replication methods. | It support only one replication methods Master-master replication. |
| 9. | It does not support any Partitioning methods. | In PostgreSQL, partitioning can be done by range, list and hash. |
| 10. | It supports in-memory capabilities. | It does not supports in-memory capabilities. |
| 11. | SQLite provides ACID transactions. | PostgreSQL also provides ACID transactions. |