1. Neo4j ：
Neo4j 是最著名的图形数据库管理系统，它也是 Neo4j, Inc. 开发的 NoSQL 数据库系统。它不同于 Mysql 或 MongoDB，因为它具有与其他数据库管理系统相比的特殊功能。 Neo4j 还以图表的形式存储和呈现数据，而不是表格格式或 Jason 格式。在这种情况下，整个数据由节点表示，在那里您可以创建节点之间的关系，这意味着整个数据库集合将看起来像一个图形，这使得 Neo4j 与其他数据库管理系统不同。
2. MySQL：
它是一个基于结构化查询语言 (SQL) 的关系数据库管理系统 (RDBMS)。它是由oracle 公司开发和管理的基于开放的数据库管理，于1995 年5 月23 日首次发布。它被广泛应用于许多小型和大型工业应用程序，能够处理大量数据。
Neo4j 和 MySQL 的区别：
| S.No. | Neo4j | MySQL |
|---|---|---|
| 1. | It was developed by Neo4j, Inc. | It was developed by Oracle. |
| 2. | It was initially released in 2007. | It was initially released on May 1995. |
| 3. | It is written using Java and Scala language. | It is developed in C and C++ languages. |
| 4. | Neo4j server operating systems are Linux, OS X, Solaris, and Windows. | Its server operating systems are Free BSD, Linux, OS X, Solaris and Windows. |
| 5. | It provides us with Causal and Eventual Consistency configurable in Causal Cluster setup and Immediate Consistency in stand-alone mode. | It provides us with Immediate Consistency method to ensure consistency in a distributed system. |
| 6. | Neo4j APIs and other access methods includes Bolt protocol, Cypher query language, Java API, Neo4j-OGM, RESTful HTTP, API, Spring Data Neo4j, TinkerPop 3. | APIs and other access methods include ADO.NET, JDBC, ODBC, Proprietary native API. |
| 7. | It does not support SQL. | It supports SQL. |
| 8. | Its primary database model is is Graph DBMS. | Its primary database model is Relational DBMS. |
| 9. | Neo4j supports programming languages which are .Net, Clojure, Elixir, Go, Groovy, Haskell, Java, JavaScript, Perl, PHP, Python, Ruby and Scala. | It supports Ada, C, C#, C++, D, Delphi, Eiffel, Erlang, Haskell, Java, JavaScript (Node.js), Objective-C, OCaml, Perl, PHP, Python, Ruby, Scheme, Tcl programming language. |
| 10. | It does not supports Partitioning methods. | It supports horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric. |