I am working with phpmyadmin.I created a table with one primary key and 5 fields. But now all the integer fields have turned into a primary key. I tried using drop command but i
Just open up the Structure tab on your phpmyadmin table. After the structure description, there should be a Indexes section where you'll see all indexes, including your primary keys. There you'll be able to either modify or remove any primary key you may have defined.