Question

Using SQL Server 2005

Table1

ID Time 

001  060000 (HHMMSS)
001  080000
002  100000 
002  090000 
002  120000
.....

Intime, Outtime datatype is varchar.

I want to calculate the total time group by id

How to calculate the total Hours.

Need Query Help

Answer 1

based on the data give, throw away the 0000 at the end, change to int, SUM

SELECT
    SUM(CAST(REVERSE(SUBSTRING(REVERSE(TimeCol),5,8000) as int), ID
FROM
    MyTable
GROUP BY
    ID

If you have minutes but no seconds, you can modify this to throw away 00 at the end, split into hours + minutes and sum that…

The problem is:

• breaking HHMMSS string into separate HH, MM and SS
• then finding a common unit (whole seconds for example, but Ilooked at the data so chose whole hours)
• SUMming to give total common unit
• changing to desired output unit (hours in this case)