datetime_functions.doc
上传用户:blenddy
上传日期:2007-01-07
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- I have written some new funtions for time and date data types which can
- be used to extract hour,minutes,seconds from time values, and year,
- month,day from a date. There is also a time_difference and functions
- to convert a time to minutes or seconds.
- There are also new input/output functions for the time data type which
- allow the insertion of time attributes with value 24:00:00.
- This can be useful if your application needs to compute time difference
- from two time values representing an elapsed time of 24 hours.
- Massimo Dal Zotto <dz@cs.unitn.it>