postgresql Question....?

postgresql Question....?

For what reason would a person with a home PC or even their own website download postgresql software? In a nut shell, what does it do? What would be the main reason for downloading such a program?

What kind of a database is it? What's the main use and/or reason for having it?

Thanks!
well since I have no knowledge of what the program does or is used for, can you explain it in non tech language? Like for example, is it used for managing your own website? Or seeing from where your email is opened from? stuff like that

Aside from having software which depends on PostgreSQL, the reasons for getting it is the same as any RDBMS. SQL Server, FireBird, Oracle, MS Access, MySql, etc. all pretty much do the same thing. Differences mainly lie with the variant of SQL* in use, supported features of SQL*, performance, featureset, and cost.

As for what you'd use an RDBMS for, to manage a relational database. Relational databases are databases where tables contain interelated data (hence the name). Like I can have a table of customers, a table of products, and another table which contains purchases, whose columns would be a purchase ID, the customer's ID, the product's ID, how much of the product was bought and the date.


*I can't think of any RDBMS which doesn't use SQL in one form or another.