Delete the Certain number of Rows from Postgresql table
<p>I am new to postgresql, I have inserted 5000 rows in my table but I just want to delete the 1500 rows from 5000 rows. Here I don't have any constraint to delete those rows. I have to delete the top or bottom 1500 rows from the table.</p>

<p>I have googled a lot but I have not get any clue to delete the rows without any constraint.</p>

<p>Any suggestion would be great.  </p>