Question

I’m trying to first drop the index and then the PK (because ultimately I’m gonna need to do a truncate on this table).

Here’s a screen shot of this table and constraints:

Here are the 2 constraints (code obtained from clipboard after I right-click them and do a create to clipboard in SQL 2008):

(the Primary Key)

ALTER TABLE [dbo].[Entry] ADD  CONSTRAINT [PK_Entry_Id] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
GO

(supposedly this is the create index code, after I do a right-click create to clipboard..but it’s the same exact code! not sure why):

ALTER TABLE [dbo].[Entry] ADD  CONSTRAINT [PK_Entry_Id] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
GO

Answer 1

Dropping the primary key should drop the index as well as the index was automatically created when you created the primary key.

You only need to drop the Foreign Key constraints when you need to truncate a table. This is to make sure there are no tables dependent on it.