Copy PostgreSQL Data to Text: Step-by-Step Guide

To copy data from a PostgreSQL database to a text file, you can use the pg_dump command. Here are the specific steps:

1. Open the command line interface and enter the following command to connect to the database from which you want to export data:

psql -U username -d dbname

Among them, username is the username of the database, and dbname is the name of the database from which data is to be exported.

1. Enter the following command to export data to a text file:

pg_dump -U username -d dbname -a -f outputfile.txt

The -a option specifies to only export data without exporting the table structure, while the -f option specifies the output file name as outputfile.txt.

1. Enter the password to confirm the export process, then wait for the export to complete.
2. After the data export is complete, you can open the outputfile.txt file with a text editor or other tools to view the exported data.