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  3. Time Series Analysis in SQL Server

Exercise

Build dates and times with offsets from parts

The DATETIMEOFFSETFROMPARTS() function builds a DATETIMEOFFSET out of component values. It has the most input parameters of any date and time builder function.

On January 19th, 2038 at 03:14:08 UTC (that is, 3:14:08 AM), we will experience the Year 2038 (or Y2.038K) problem. This is the moment that 32-bit devices will reset back to the date 1900-01-01. This runs the risk of breaking every 32-bit device using POSIX time, which is the number of seconds elapsed since January 1, 1970 at midnight UTC.

Instructions

100 XP
  • Build a DATETIMEOFFSET which represents the last millisecond before the Y2.038K problem hits. The offset should be UTC.
  • Build a DATETIMEOFFSET which represents the moment devices hit the Y2.038K issue in UTC time. Then use the AT TIME ZONE operator to convert this to Eastern Standard Time.