The alias name becomes the new column name. In the above three examples, you saw the “as” keyword for giving an alias name to any operation. You will perform some simple operations in this PostgreSQL tutorial. The query editor opens, type - select version() Right-click on the test database, choose the Query Tool. Next, you will look at how to write queries using pgAdmin in this PostgreSQL tutorial. Open the SQL Shell (psql) and key in the username and password. Once you install PostgreSQL on your system, you will access the SQL Shell and pgAdmin. Connect to PostgreSQL Using SQL Shell (psql). It’s now time to get started with the hands-on demo part in this PostgreSQL tutorial. Postgresql supports Multiversion Concurrency Control (MVCC).It can also work with documents like JSON and XML. It also supports structured data types such as date/time, array, range. PostgreSQL supports various data types such as integer, string, and boolean.PostgreSQL supports multiple programming interfaces such as Java, C, C++, and Python. PostgreSQL is highly secure, robust, and reliable.PostgreSQL is compatible with Linux, Windows and macOS operating systems.PostgreSQL is an advanced open-source database that is free to download.Now, look at the critical features of the database in this PostgreSQL tutorial. It is a diverse group consisting of companies and thousands of individual contributors. Since then, developers continue to create and maintain PostgreSQL, courtesy of the PostgreSQL Global Development Group. On January 29, the developers released 1997, the first PostgreSQL and it was known as version 6.0. In 1994, they added an SQL Interpreter to Postgres.In 1987, they released the first demo version.In 1986, professor Michael Stonebraker led the POSTGRES project. which was developed at the University of California, Berkeley.
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