The following are the installed packages with version. The OS version is Red Hat Enterprise Linux 7/8 and centos. The tmp directory should contain a free disk space of 1GB or more. The system architecture of the OS is 64bit. $ grep SwapTotal /proc/meminfo System architecture The minimum requirement of physical RAM is 2GB.
It is designed to run on different platforms.PostgreSQL is an open-source database management system.Use the INSERT INTO statement to add data in the following format: INSERT INTO table (column_name1, column_name2, column_name3) VALUES ( 'value1', 'value2', 'value3') įor example, add a row of data to the hotel table that you created above.In this article, I have explained about PostgreSQL Database 12.1 installation on Red Hat Linux / CentOS Once your table structure is ready, you can add some data to an existing table. where the table name is hotel, and columns are hotel_id, star, paint, location, and date with their respective lengths and column constraints. Location varchar( 25) check ( location in ( 'north', 'south', 'west', 'east', 'northeast', 'southeast', 'southwest', 'northwest')), are the column names, col_type is the type of column, and field_length is the size of the data structures to make the values more robust.įor example, you can create a table hotel with the following columns: CREATE TABLE hotel ( where table_name is the desired name set by the user, column_name1, column_name2, etc. The basic syntax to add fields in the new table is quite simple. Let’s create a new table to store some data. Note that you need to be logged in as the postgres system user to issue administrative commands. To create a new database within PostgreSQL, use the following command: createdb databasename Log in as the new user using the -i and -u flags.
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