102 inches is legal, but that must include your side mirrors too. Wide body motorhomes have the body being 102 inches and the mirrors can stick out at least another foot on each side. How far you can stray from the interstate varies by state.
Sometimes, you need to know exactly how many years, months and days between two dates, in this situation, the following long formula may help you. 1. Years,  & DATEDIF(B1,B2,YM) &  Months,  & DATEDIF(B1,B2,MD) &  Days. Note: In the above formula, B1 indicates the start date and B2 stands for the end date, you can modify them as you need.
AND (datecolumn BETWEEN dateadd(day, - 7, convert(varchar, getdate(), 101)) AND getdate()) Here are the same query conditions, but for a range of the last 30 days from the current date. For records with a date and time within the last thirty days to the current time.