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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. 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. To complete this process, you will require a working installation of the CentOS 7 operating system with root privileges and a text editor of your choice. Note that you need to be logged in as the postgres system user to issue administrative commands. To get started, install the postgresql-client package by opening a terminal and entering the following command: sudo apt install postgresql-client When the installation of PostgreSQL client is complete, you can use the psql command to connect to a remote PostgreSQL server. 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.