PostgreSQL, often referred to as Postgres, is a powerful open-source relational database management system (RDBMS) known for its scalability, robustness, and extensibility. It offers advanced features like ACID compliance, support for complex data types, and support for both SQL and NoSQL data. PostgreSQL is highly regarded for its performance, security, and reliability, making it a popular choice for applications ranging from small startups to large enterprises. Its active developer community continuously enhances and maintains the software. PostgreSQL is an excellent choice for data storage, analysis, and management in various domains, including web applications, data warehousing, and geospatial applications.
11. How can you install PostgreSQL on a Linux system?
12. What is the default superuser in a new PostgreSQL installation?
13. Which command is used to create a new PostgreSQL user?
14. What is the purpose of the 'pg_hba.conf' file in PostgreSQL?
15. What is the default port number for PostgreSQL?
16. What is the role of the 'pg_ctl' utility in PostgreSQL?
17. In PostgreSQL, what is the purpose of the 'psql' command?
18. Which authentication method requires a user to provide a password for access?
19. What is the purpose of the 'initdb' command in PostgreSQL?
20. What is the default authentication method for PostgreSQL on Unix-like systems?