Neo4j vs IBM DB2

DB2:

IBM developed the Database named DB2. It is a database that follows relational database management system principles. By using DB2, we can fetch the data, analyze it and store it efficiently. DB2 is based on Object-Oriented features and non-relational XML structures. It is a group of related data management products that include data servers developed and marketed by IBM. It is developed on a concept based on SQL, i.e., standard query language on the relational database system, which means DB2 uses SQL queries to retrieve and store the data into the Database. We can use DB2 on AS/400 IBM mainframe and personal computers.

DB2 also supports the storage of non-relational formats like XML and JSON DP. It is not open-source but provides some free distributions, and IBM fully owns it, and if we want to run on large servers, we should have to pay for the licensing.

Let's see some advantages:

DB2 has been around for years and has matured as a robust RDBMS.

1. Powerful Structures Query Language

2. Various Platform support.

Neo4j:

It is the worlds leading graph database, and the use of Java technology develops it. To explain it, we can say that it is a mySQL for graph databases.

First, what is a graph database? It is a pictorial representation of the group of objects wherein links interlink pairs of objects. It consists of two elements, namely nodes and relationships. The data is modeled in the form of a graph in a graph database. In modern days graph database is important as data is present in the form of relationships within various objects, as the data is more valuable.

Let's see some primary advantages if neo4j:

• There is a free version which is great for prototyping.
• We can customize the visualization using the neo4j browser freely. It is easy, which allows a non-data scientist person.
• It makes it easy to represent connected data
• It uses an easy and uncomplicated data model
• We don't need complex join to retrieve connected data as we can use adjacent nodes. It is easy without joins and indexes
• It offers an SQL-like language known as neo4j CQL.

Following is the comparison of two databases:

Sr. no	Neo4j	IBM DB2
1	The developer of Neo4j is Neo4j, Inc	The developer of this database is IBM
2	It was initially released on 2007	It was initially released on 1983
3	The server operating systems are as follows OS X, Windows, Linux, and Solaris.	The server operating systems are as follows AIX, HP_UP, Linux, Windows, Solaris, and z/OS
4	It supports Perl, Scala, Python, JavaScript, .Net, Clojure, PHP, Ruby, Scala programming language	The programming languages it supports are C, Delphi, PHP, Ruby, Visual Basic, Fortran, Cobol, Python, C++, C# , JAVA
5	It does not offer partitioning methods	It supports Sharding partitioning methods
6	Its primary database model is property Graph model.	The primary database model is relational DBMS
7	It is a opensource graph database	It is a commercial software we need license to use it
8	Companies that depend on neo4j are Orange, AT&T, Orange, Verizon, Comcast and many more	Well known companies like JPMorgan, Bank of America, Citi, wells Fargo use IBM’s DB2
9	It is implemented in Java and Scala language	It is implemented in Languages like C, C++, Assembly Language and Java languages
10	It offers language named Cypher for graph database	It supports SQL
11	To access methods and APIs it uses are GroSPARQL, JDBC, RIO, Sail API, SPARQL 1.1, GraphQL, Sesame REST HTTP Protocol, RDFS, Java API.	To access methods and APIs it uses ADO.NET, XQuery, ODBC, JSON style queries
12	It offers multi source replication	It offers Replication methods
13	User concepts provided are Default Basic Authentication via RDF4j client, or via Java when run with URL, default token-based in the Workbench or via Rest API, optional access through OpenID or Kerberos single sign-on.	The user concepts followed are fine grained access rights as per SQL standards
14	Its recent release was in June 2021 the version is 9.8	Its recent release was in June 2019