This way, users can be sure they are getting the latest version. The first method is to download PostgreSQL from its official repository. Install PostgreSQL on CentOS 7 Using the PostgreSQL Repository Let’s review each of these methods in more detail.
Install PostgreSQL from existing CentOS repositories. You can install PostgreSQL on CentOS 7 by using one of the following two methods: You can read more about it on the official website. We recommend keeping that in mind when choosing this OS. While CentOS Linux 7 is still supported, it will reach EOL on June 30, 2024. Important! CentOS Linux 8 reached its End of Life (EOL) on Dec. Therefore, it’s no surprise that PostgreSQL offers features such as advanced optimization and data types similar to companies like SQL Server and Oracle. Being open-source, it attracts many developers that actively contribute to this DBMS’ growth. One of the main advantages of PostgreSQL is its large community. For relational queries, PostgreSQL uses SQL, while non-relational queries are processed with JSON. 
Unlike NoSQL databases, PostgreSQL stores data in rows, columns, and tables.
Install PostgreSQL on CentOS 7 Using the CentOS Repositories (Optional) Enable PostgreSQL Launch on Reboot
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