Exploring the Database
To understand PostgreSQL, you need to see it in use. An empty database is like a ghost town without houses.
For now, we will assume that you already have a database. There are over a thousand books on how to design your own database from nothing. So, here we aim to help people who are still learning to use the PostgreSQL database management system with handy routines to explore the database.
The best way to start the process of understanding is by asking some simple questions to orient yourself. Incidentally, these are also questions that you’ll need to answer if you ask someone else for help.
In this chapter, we’ll cover the following recipes:
- What type of server is this?
- What version is the server?
- What is the server uptime?
- Locating the database server files
- Locating the database server’s message log
- Locating the database’s system identifier
- Listing databases on the database...
