PostgreSQL is a general-purpose and relational database management system. It is one of the most advanced open-source database systems. It was generated on POSTGRES 4.2 at Berkeley Computer Science Department, University of California. It operates on all principal operating systems such as Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows. Let’s take a look at some of the most important topics of PostgreSQL: Constraints How to apply all the [...]