@mdavidson wrote:
got it: INTCK('minute',field1,field2 )
INTCK can give results that aren't what you want in all cases, as it counts from the beginning of the interval (see the Details section of the documentation). If your data are recorded to the minute, it won't matter. If your data are recorded to the second, it might.
As datetime variables are recorded in seconds, an alternative is to use the fact that there are 60 seconds in a minutes and just do the arithmetic directly
(datetime2 - datetime1)/60 provides minutes with decimal fractions.
FLOOR( (datetime2 - datetime1)/60 ) provides the whole minute durations.
For instance, 12:01:50 to 12:02:10 is 1 using INTCK, 0.333 using the decimal minutes, and 0 using the FLOOR version.
@mdavidson wrote:
got it: INTCK('minute',field1,field2 )
INTCK can give results that aren't what you want in all cases, as it counts from the beginning of the interval (see the Details section of the documentation). If your data are recorded to the minute, it won't matter. If your data are recorded to the second, it might.
As datetime variables are recorded in seconds, an alternative is to use the fact that there are 60 seconds in a minutes and just do the arithmetic directly
(datetime2 - datetime1)/60 provides minutes with decimal fractions.
FLOOR( (datetime2 - datetime1)/60 ) provides the whole minute durations.
For instance, 12:01:50 to 12:02:10 is 1 using INTCK, 0.333 using the decimal minutes, and 0 using the FLOOR version.
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