Calculating total time duration in MySQL

Question

i have a table data like this

(int)   (time)  [mySQL datatype]

Id     Duration 
------------------
1      00:10:00
2      10:10:00
3      03:00:00
4      04:13:00

i want to calculate the total duration from this table, how can we do it. like 17:33:00. Could anybody please provide mysql query to calculate this.

Answer 1

Try this:

SELECT CAST(SUM(Duration) AS Time)
FROM Table1
WHERE Duration IS NOT NULL

Result:

17:33:00