How to export data to a CSV file from a PostgreSQL database together with table headings

1. Type in the following command in postgres using the command line:
   copy products to ‘/home/user/products.csv’ delimiters ‘,’ CSV HEADER
   • products = (Database Table)
   • ‘/home/user/products.csv‘ = (Location where to save the csv file)
   • You need to have write permissions to write the file to the filesystem with the postgres user
   • CSV HEADER – This is the feature that let’s you export the table headings as well, please note that the HEADER argument has only been introduced in Postgres 8.1

How to import a CSV file into a postgresql?