Why don't you just subtract them. That will give you a numeric result with the result being the hours difference in the first two positions, then the minutes, then the seconds. You can that use DIGITS, CONCAT and TIME functions to get it to a TIME format.
with t1 as (select current_time a1,
current_time + 2 hours + 63 minute a2
from
sysibm.sysdummy1)
select t1.*,
SUBSTRING(DIGITS(A2-A1),1,2)||':'||SUBSTRING(DIGITS(A2-A1),3,2)||':'||SUBSTRING(DIGITS(A2-A1),5,2),
TIME(SUBSTRING(DIGITS(A2-A1),1,2)||':'||SUBSTRING(DIGITS(A2-A1),3,2)||':'||SUBSTRING(DIGITS(A2-A1),5,2))
from t1
It's ugly, but it works.
-Tom Stieger
California Fine Wire
Engineer
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Rick.Chevalier@xxxxxxxxxxxxxxx
Sent: Monday, November 15, 2010 9:29 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Difference between two time values in SQL
When I see the answer it will probably be obvious but I have spent over two hours trying to create a query to list records including the difference between two time values. I searched the archives and did a Google search but didn't see the answer. Lots of information on differences between dates though.
How does one go about calculating the difference between two time values in an SQL statement? Do they have to be converted to timestamps first? I want the result to be a time value as well.
Rick Chevalier
IT Software Solutions - Loan Servicing
817-525-7178 (w)
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