1. IBM DB2 :
IBM DB2 is a database which has a relational model and is known for its performance. It has high scalability and is also known for its reliability. It is a commercial software and the main working principle of IBM DB2 is ACID. It was developed by IBM in the year 1983. The partitioning method which is used in IBM DB2 is sharding. It supports various query languages like SQL, JSON, XML, SPARQL etc. It is implemented in C and C++ language. IBM DB2 is widely used for storing huge amount of data and performing the transactions.
2. PostgreSQL :
PostgreSQL is a database that has a object-relational model and was developed by PostgreSQL Global Development group in 1989. It is a powerful free open source software. It is also known as Postgres. PostgreSQL is supported by majority of operating systems and has a good performance. It is a extended version of SQL and has additional features. It mainly works on the principle of ACID. It is implemented in C language.
Difference between IBM DB2 and PostgreSQL :
|1.||IBM DB2 is a relational database model.||PostgreSQL is a object-relational database model.|
|2.||IBM DB2 was developed by IBM in 1983.||PostgreSQL was developed by PostgreSQL Global Development group in 1989.|
|3.||In IBM DB2 partitioning is done by sharding.||In IBM DB2 partitioning is done by use of list, hash and range.|
|4.||It has a commercial license.||It is a open source software.|
|5.||It is written in C and C++ languages.||It is written in C++ language.|
|6.||It is a family of database management products given by IBM.||It is a advanced relational DBMS that is a extended form of SQL.|
|7.||It has less availability as compared to PostgreSQL.||It has more availability as compared to IBM DB2.|
|8.||In terms of ranking it is considered lower than PostgreSQL.||It is considered better than IBM DB2 in terms of ranking.|
|9.||It has more scalability as compared to PostgreSQL.||It has less scalability as compared to IBM DB2.|
|10.||It has query languages such as SQL, JSON, XML, XPATH, SPARQL.||It has SQL as its query language.|
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