IBM DB2 vs PostgreSQL: What are the differences?
What is IBM DB2? A family of database server products developed by IBM. DB2 for Linux, UNIX, and Windows is optimized to deliver industry-leading performance across multiple workloads, while lowering administration, storage, development, and server costs.
What is PostgreSQL? A powerful, open source object-relational database system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions.
IBM DB2 and PostgreSQL belong to "Databases" category of the tech stack.
"Rock solid and very scalable" is the top reason why over 5 developers like IBM DB2, while over 744 developers mention "Relational database" as the leading cause for choosing PostgreSQL.
PostgreSQL is an open source tool with 5.38K GitHub stars and 1.79K GitHub forks. Here's a link to PostgreSQL's open source repository on GitHub.
reddit, Instacart, and StackShare are some of the popular companies that use PostgreSQL, whereas IBM DB2 is used by XMLi5 Ltd., ITAIPU BINACIONAL, and Applic8. PostgreSQL has a broader approval, being mentioned in 2701 company stacks & 2097 developers stacks; compared to IBM DB2, which is listed in 7 company stacks and 9 developer stacks.