How can I improve this Mailing Address SQL Server SELECT Statement?

Question

How can I format a Mailing Address so that I always push all non-null rows to the top? That is, I want to convert an address from the structure below to a mailing address.<

Answer 1

Here's a three-minutes-invested solution:

DECLARE @address TABLE (
    [Line1] [varchar](50) NULL,
    [Line2] [varchar](50) NULL,
    [Line3] [varchar](50) NULL,
    [City] [varchar](50) NULL,
    [State] [varchar] (2) NULL,
    [PostalCode] [varchar](50) NULL
)

INSERT INTO @address (
    [Line1],
    [Line2],
    [Line3],
    [City],
    [State],
    [PostalCode]
)
VALUES (
    NULL,
    '123 Some Address',
    NULL,
    'Royal Oak',
    'MI',
    '45673-2312'
)

SELECT * FROM @address

SELECT
      ISNULL(Line1 + CHAR(13), '')
    + ISNULL(Line2 + CHAR(13), '')
    + ISNULL(Line3 + CHAR(13), '')
    + ISNULL(City    + ' ',    '')
    + ISNULL([State] + ' ',    '')
    + ISNULL(PostalCode,       '')
FROM @address

Result:

123 Some Address
Royal Oak MI 45673-2312

Fiddle with the control characters until you get the result you need.