This video shows how to auto increment using phpPgAdmin. There are numerous uses for the auto-incrementing.
Here, we are going to see how to auto-increment on a primary key.
In "Create a Table" we created a table, demotable. We set demotable_id as our primary key for our table.
In "Create a Sequence" we created a sequence, demo_id_seq.
While we will use the example table and sequence we created in this tutorial, the basic form is the same whenever adding auto-incrementing:
PostgreSQL Auto Increment in phpPgAdmin