Derby 和 MongoDB 的区别

1.德比：
Derby 是一个用Java实现的功能齐全的开源关系数据库管理系统 (RDBMS)，顾名思义，它是由 Apache Software Foundations 开发的。它基于Java、JDBC 和 SQL 标准。 Derby 易于安装、部署和使用。它要么嵌入到Java应用程序中，要么用作数据库服务器。

2. MongoDB：
MongoDB 是一个跨平台的面向文档的非关系型(即 NoSQL)数据库程序。它是一个开源文档数据库，以键值对的形式存储数据。 MongoDB 由 MongoDB Inc. 开发，最初于 2009 年 2 月 11 日发布。它是用 C++、Go、JavaScript、 Python语言编写的。 MongoDB 提供高速、高可用性和高可扩展性。

Derby 和 MongoDB 的区别：

SR.NO	Derby	MongoDB
1	It is developed by Apache Software Foundation in 1997.	It is developed by MongoDB Inc. on 2009.
2	It is written in Java language.	It is written in C++ language.
3	The primary database model for Derby is Relational DBMS.	The primary database model for MongoDB is Document store.
4	Server operating systems for Derby are Windows, macOs, Linux, Unix, BSD and z/OS.	Server operating systems for MongoDB are Linux, OS X, Solaris and Windows.
5	It has Java Stored Procedures for Server-side scripts.	It has Javascript for Server-side scripts.
6	It support Master-Slave Replication methods.	It also support Master-Slave Replication methods.
7	APIs and other access methods used by Derby is JDBC.	APIs and other access methods used by MongoDB is proprietary protocol using JSON.
8	It support only Java programming language.	It support C, C#, C++, D, Delphi, Java, JavaScript, Lua, MatLab, Objective-C, Perl, PHP, PL/SQL, Python, R, Ruby, Scala, etc.
9	It provide XML support.	It do not provide XML support.
10	It support fine grained access rights according to SQL-standard.	It do not support access rights for user.
11	It does not support any Partitioning methods.	In MongoDB, partitioning can be done by Sharding.
12	It does not supports Map Reduce method.	It supports Map Reduce method.
13	It provides Immediate Consistency method to ensure consistency in a distributed system.	It provides both Eventual Consistency and Immediate Consistency methods to ensure consistency in a distributed system.
14	It provides multi-document ACID transactions with snapshot isolation	It provides ACID transactions.