Convert time into corresponding minutes

zacharti · New User Joined: 15 Jun 2006 Posts: 13

Hi,

I have a requirement to convert time into its corresponding minutes usig DB2 SQL query in mainframe.

Is there any funtion available that directly converts the time into its corresponding minutes?

For eg: if the time is 13:38, it should be converted into 7838 minutes
(13* 60 +38)

Thanks

Tita

Robert Sample · Posted: Thu Feb 10, 2011 6:43 am

Either you're using a mathematical system I'm not familiar with, or you want something I'm not sure you can get from the system.

13 times 60 is 780
Add 38 for a result of 818

Since there are only 1,440 minutes in a day, if you're wanting minutes elapsed since midnight, the value should range from 0 to 1439.

Kjeld · Posted: Thu Feb 10, 2011 12:17 pm

I would suggest using the function MIDNIGHT_SECONDS and divide the result by 60 to get the minutes count.

dbzTHEdinosauer · Posted: Thu Feb 10, 2011 12:24 pm

no function directly converts hours or days to minutes.

depending upon your time column,

the following scalar functions can combined:

MINUTE can be used to extract the minute portion of a time, date, timestamp datatype

HOUR can be used to extract the hour portion of a time, date, timestamp datatype and when multipled by 60 gives the number of minutes for the hour(s).

so,
SELECT (HOUR(datetime_column type) * 60) + (MINUTE(datetime_column type)) as Number_Of_Mminutes.

you can cast a host variable as a datetime datatype.

but if you are using db2 to calculate minutes of a host variable containing HH:MM you are wasting resources.

or use Kjeld's suggestion, but MIDNIGHT_SECONDS also expects a datetime datatype.