Welcome to the course on PostgreSQL Tutorial for Beginners.

PostgreSQL Database is the world’s most popular open-source database because of its consistently fast performance, high reliability, and ease of use. PostgreSQL has an Open Source License i.e. it has a free GNU General Public License. So it is free to modify and distribute but all modifications must be available in source code format. PostgreSQL Database is Mostly used to power web sites and small apps and it also supports clustering and replication. Database Management System is used to manage the storage and retrieval of data to and from the database and hides the complexity of what is actually going on from the user. SQL (Structured Query Language) is the language used to insert and retrieve content. Clients make queries on the database to Retrieve, Insert, Update, or Delete content.

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