Memcached vs PostgreSQL: What are the differences?
Developers describe Memcached as "High-performance, distributed memory object caching system". Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering. On the other hand, PostgreSQL is detailed as "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.
Memcached and PostgreSQL can be primarily classified as "Databases" tools.
"Fast object cache", "High-performance" and "Stable" are the key factors why developers consider Memcached; whereas "Relational database", "High availability " and "Enterprise class database" are the primary reasons why PostgreSQL is favored.
Memcached and PostgreSQL are both open source tools. Memcached with 8.99K GitHub stars and 2.6K forks on GitHub appears to be more popular than PostgreSQL with 5.44K GitHub stars and 1.8K GitHub forks.
Uber Technologies, Spotify, and Netflix are some of the popular companies that use PostgreSQL, whereas Memcached is used by Facebook, Instagram, and Dropbox. PostgreSQL has a broader approval, being mentioned in 2739 company stacks & 2169 developers stacks; compared to Memcached, which is listed in 755 company stacks and 267 developer stacks.