There's the strategy of building the string to pass through. If there's a better way I'd sure love to know. Counting tick marks gets old.

DECLARE @UIDchar(9),

@Queryvarchar(5000)

Set @UID = '123456789'

Set @Query = 'SELECT *

FROM OPENQUERY(LINKED_SERVER,''SELECT *

FROM TABLE_NAME

WHERE UID = ''''' + @EID + ''''''')'

exec(@Query)