Updating Only Changed Fields

My client wants to minimize concurrency issues by only updating fields that the user actually changed. Whereas most update stored procedures I have created just updated all of the fields WHERE key=value, they want to update individual fields.

What I came up with so far does not look very efficient and I was wondering if anyone has suggestions for improvement.

Here is a snippet from the stored proc script:



Code Snippet
CREATE PROCEDURE dbo.DriverSaveChangedColumns
@DriverNumber VarChar(10) OUTPUT,
@CompanyName VarChar(50),
@DriverName VarChar(50),
@Address1 VarChar(50),
...
IF @CompanyName <> @Org_CompanyName

BEGIN

UPDATE Driver
SET DR_CompanyName = @CompanyName
WHERE DR_DriverNumber = @DriverNumber AND DR_CompanyName = @Org_CompanyName
END

IF @DriverName <> @Org_DriverName

BEGIN

UPDATE Driver
SET DR_DriverName = @DriverName
WHERE DR_DriverNumber = @DriverNumber AND DR_DRiverName = @Org_DriverName
END
...



Any suggestions?

The only other thing I thought of is to forget the stored procedure and do inline SQL ... but I'd rather have a proc.

Thanks!