Find the time difference between two consecutive rows in the same table in sql

Question

I\'m stuck. I\'ve looked for an answer, but can\'t seem to find subtracting time in the same table from two different rows of the same table that fits. I\'m having a difficu

Answer 1

WITH rows AS

(

SELECT  *, ROW_NUMBER() OVER (ORDER BY EmpID) AS rn        
FROM    TimeSheet         
)

SELECT mc.EmpID, DATEDIFF(MINUTE, mc.TimeIn, mp.TimeOut) as TimeDiffInMinutes
FROM    rows mc JOIN    rows mp ON   mc.rn = mp.rn-1