Conversion failed when converting the varchar value

Getting Conversion error when using the following code.

Declare @BeginDate datetime
Declare @EndDate datetime
Set @BeginDate = '03/01/2018'
Set @EndDate = '03/31/2018'

Select Count(AA.OrderD), BB.Age

from Livedb.dbo.AccountMain      AA

left join Livedb.dbo.Sales_Main     BB
    on AA.OrderID.PatientID=BB.OrderID
      where isnull(AA.DateTime1,AA.DateTime2)   between @BeginDate and @EndDate
      group by BB.Age
      Having  BB.Age > 17

Getting the following error when I use HAVING clause (it works without) :

Conversion failed when converting the varchar value '0m 17d' to data type int.
Abdul KhanAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Jim HornMicrosoft SQL Server Data DudeCommented:
>Conversion failed when converting the varchar value '0m 17d' to data type int.
Curiosity overwhelms me ... what integer value would you expect?  17?   If yes, then you'll need a numeric column in order to perform a greater than > comparison, and the letters in '0m 17d' mean BB.Age is a character column, and you can't do characters greater then a number unless the characters are all numbers and SQL uses implicit conversion.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Abdul KhanAuthor Commented:
Thanks so much, I should have paid more attention.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.