Index on Primary Key

How do I drop the index related to a primary key?  DROP INDEX doesn't work.

 

Answer : A simple & direct answer is we can't do it directly. (according to my knowledge)

 

 

There are two work-arounds:

 

1. Create a clustered Index on another column & delete clustered index from that column.

 

2. Delete the constarint

 

sp_helpconstraint table_name

ALTER TABLE [database.[owner].]table_name
  DROP CONSTRAINT constraint_name