title: How to alter table
body: <pre><code>CREATE TABLE [dbo].[INVS_ITEM_LOCATIONS](
      [DEPARTMENT_CODE] [varchar](3) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
      [IM_INV_NO] [numeric](10, 0) NOT NULL,
      [LOCATION_CODE] [varchar](2) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
      [CURR_QTY] [numeric](10, 0) NOT NULL CONSTRAINT [DF__INVS_ITEM__CURR___1352D76D]  DEFAULT ((0)),
      [DO_QTY] [numeric](10, 0) NOT NULL CONSTRAINT [DF__INVS_ITEM__DO_QT__1446FBA6]  DEFAULT ((0)),
      [ALLOC_QTY] [numeric](10, 0) NOT NULL CONSTRAINT [DF__INVS_ITEM__ALLOC__153B1FDF]  DEFAULT ((0)),
      [YOB_QTY] [numeric](10, 0) NOT NULL CONSTRAINT [DF__INVS_ITEM__YOB_Q__162F4418]  DEFAULT ((0)),
      [FOC_QTY] [numeric](10, 0) NULL CONSTRAINT [DF__INVS_ITEM__FOC_Q__17236851]  DEFAULT ((0)),
      [USER_CREATED] [varchar](25) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
      [DATE_CREATED] [datetime] NOT NULL,
      [USER_MODIFIED] [varchar](25) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
      [DATE_MODIFIED] [datetime] NULL,
   CONSTRAINT [INVS_ITEM_LOCATIONS_PK] PRIMARY KEY CLUSTERED 
  (
      [DEPARTMENT_CODE] ASC,
      [IM_INV_NO] ASC,
      [LOCATION_CODE] ASC
  )WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
  ) ON [PRIMARY]
  </code></pre>
  
  <p>this is my table name how can i delete primary key in im_inv_ni and location_ code </p>
  
  <p>and also i should add foriegn key to im_inv_no....pls help</p>