'@ItemID'附近的语法不正确

Question

I am not sure that writing SP with two update statements correct.

I am getting Incorrect syntax near '@ItemID'. Can you suggestion me ... How can i resolve this.

CREATE PROCEDURE [dbo].[ComponentReplaceUSP](@ReplaceItem nvarchar(256) ,@Quantity decimal(28,12) ,@UOM nvarchar(30)) 

AS  
 DECLARE @ItemID INT    
BEGIN       

   Select @ItemID = ItemID  FROM [dbo].[Item] WHERE ItemName =  @ReplaceItem

    UPDATE Item    
      SET Item.ItemName = @ReplaceItem,
      Item.UOM = @UOM
      Where Item.ItemID =@ItemID    


      Update ItemBillOfMaterial
      Set ItemBillOfMaterial.UOM =@UOM,
          ItemBillOfMaterial.Quantity =@Quantity
          Where  ItemBillOfMaterial.CompItem= @ItemID   

Answer 1

Your CREATE PROCEDURE query requires an END :

CREATE PROCEDURE [dbo].[ComponentReplaceUSP](@ReplaceItem nvarchar(256) ,@Quantity decimal(28,12) ,@UOM nvarchar(30)) 
AS   
DECLARE @ItemID INT  
BEGIN           
   Select @ItemID = ItemID  FROM [dbo].[Item] WHERE ItemName =  @ReplaceItem
END

Answer 2

It should be just a case of moving the declare below the begin as this needs to be declared within the SP.

http://msdn.microsoft.com/en-us/library/ms187926.aspx

Answer 3

It will complain about whatever the last part of the last query is, because you've forgotten to END the block you BEGIN at line 5.

The accepted answer is wrong with its main assertion that is has anything to do with the DECLARE statement. The following is fine:

create procedure ABC
as
declare @ID int
begin
    select @ID = object_id from sys.objects
end