How to Truncate a Table in PostgreSQL

Be very careful with this command. It will empty the contents of your PostgreSQL table. This is useful in development, but you'll rarely want to do this in production.

truncate my_table

If you have a serial ID column and you'd like to restart its sequence (ie restart IDs from 1):

truncate my_table restart identity
database icon
From PostgreSQL query to chart to Slack in seconds
Get to answers faster, together, with PopSQL and PostgreSQL