SQL server, Converting Seconds to Minutes, Hours, Days

Question

I have a database column containing an integer value that represents a systems up time in seconds. I\'d really like a query to be able to show me that up time in a easy to r

Answer 1

You can convert seconds to days by dividing by 86400

You can convert seconds to hours by dividing by 3600, but you need to get the remainder (by subtracting off the total days converted to hours)

You can convert seconds to minutes by dividing by 60, but you need to get the remainder (by subtracting off the total hours converted to minutes)

Seconds you can just report, but like minutes you want to only report the remainder of seconds (by sutracting off the total minutes converted to seconds)

SELECT      FLOOR( UpTime / 86400 ) AS DAYS
        ,   FLOOR( ( UpTime / 3600 ) - FLOOR( UpTime / 86400 ) * 24 ) AS HOURS
        ,   FLOOR( ( UpTime / 60 ) - FLOOR( UpTime / 3600 ) * 60 ) AS MINUTES
        ,   UpTime - FLOOR( UpTime / 60 ) * 60 AS SECONDS
FROM        ( SELECT 269272 AS UpTime ) AS X

269272 represents 3 days (259200 seconds), 2 hours (7200 seconds), 47 minutes (2820 seconds) and 52 seconds.

This query produces:

| DAYS | HOURS | MINUTES | SECONDS |
------------------------------------
|    3 |     2 |      47 |      52 |

Substituting 125 (2 minutes, 5 seconds) for 259200 will produce:

| DAYS | HOURS | MINUTES | SECONDS |
------------------------------------
|    0 |     0 |       2 |       5 |

To convert this to a string representation, you can use SQL Server 2012's FORMAT function:

SELECT  CASE
            WHEN DAYS > 0 THEN
                FORMAT( DAYS, '##' ) + ' Day(s) ' + FORMAT( HOURS, '##' ) + ' Hour(s)'
            ELSE
                FORMAT( HOURS, '##' ) + ':' + FORMAT( MINUTES, '##' ) + ' Hour(s) Minute(s)'
        END AS UpTimeString
FROM (
    SELECT      FLOOR( UpTime / 86400 ) AS DAYS
            ,   FLOOR( ( UpTime / 3600 ) - FLOOR( UpTime / 86400 ) * 24 ) AS HOURS
            ,   FLOOR( ( UpTime / 60 ) - FLOOR( UpTime / 3600 ) * 60 ) AS MINUTES
            ,   UpTime - FLOOR( UpTime / 60 ) * 60 AS SECONDS
    FROM        ( SELECT 125 AS UpTime ) AS X
) AS UptimeSubselect