PostgreSQL is a free open source software (OSS). It's released under the PostgreSQL license. The PostgreSQL license is highly permissive, and PostgreSQL is not subject to monopoly and acquisition—because of this, companies have the following advantages:
- No associated licensing cost to PostgreSQL.
- Unlimited number of deployments of PostgreSQL.
- More profitable business model.
- PostgreSQL is SQL-standards-compliant; thus, finding professional developers is not very difficult. PostgreSQL is easy to learn, and porting code from one database vendor to PostgreSQL is cost-efficient. Also, the PostgreSQL administrative tasks are easy to automate, thereby reducing the staffing cost significantly.
- PostgreSQL is cross-platform, ...