Difference between PouchDB and IBM Db2

1. PouchDB :
PouchDB is an open-source, NoSQL, in-line database. It is designed after CouchDB, which is a NoSQL database that powers npm. It is written in JavaScript language. There is no need to perform queries over the network as PouchDB resides inside the browser and thus it makes it extremely faster. It stores data locally using IndexedDB and WebSQL in the browser.

2. IBM Db2 :
IBM Db2 is a family of data management products, including database servers, developed by IBM. It is a Relational Database Management System (RDBMS) which supports object-oriented features and non relational structure with XML. Db2 is designed to store, analyze and retrieve the data efficiently. It was initially released in 1983 and is written in C, C++, Java and Assembly language.

Difference between PouchDB and IBM Db2 :

1 It is developed by Apache Software Foundation in 2012. It is developed by IBM in 1983.
2 PouchDB server operating systems are Linux, OS X and Windows. Db2 server operating systems are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
3 The primary database model for PouchDB is Document Store. The primary database model for IBM Db2 is Relational DBMS.
4 It is written in Javascript language. It is written in C, C++, Assembly language, Java languages.
5 It is free of data schema. It has fixed data schema.
6 It do not provides ACID transactions. It provides ACID transactions.
7 It does not have the concept of Foreign keys. It has the concept of Referential Integrity and Foreign keys.
8 It does not supports Secondary indexes. It supports the secondary indexes without any restrictions.

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