search a price nearly delta

I search a price every 5 minutes. But it can be not changed during 10 minutes, so how can I have the previous price ?

SELECT tmp.sid,
           datediff(minute,cast(tmp.END_TIME as time),cast(tmp.time as time)) as delta,
           ROW_NUMBER() OVER(PARTITION BY tmp.sid
                                 ORDER BY time  asc) AS rk
      FROM #tmp tmp  where   sid='11111111111' and datediff(minute,cast(tmp.end_time as time),cast(tmp.time as time)) between 10 and 15

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.

ste5anSenior DeveloperCommented:

SELECT  T.sid ,
        T.price ,
        T.END_TIME ,
        T.time ,
        LAG(T.price, 1, NULL) OVER ( PARTITION BY T.sid ORDER BY time ASC ) AS previous_price
FROM    #tmp T
WHERE   T.sid = '11111111111';

Open in new window

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
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.