| Unit of time | Query | Result |
| NANOSECOND | SELECT DATEDIFF(NANOSECOND,'2011-09-23 17:15:22.5500000','2011-09-23 17:15:22.55432133') | 4321300 |
| MICROSECOND | SELECT DATEDIFF(MICROSECOND,'2011-09-23 17:15:22.5500000','2011-09-23 17:15:22.55432133') | 4321 |
| MILLISECOND | SELECT DATEDIFF(MILLISECOND,'2011-09-23 17:15:22.004','2011-09-23 17:15:22.548') | 544 |
| SECOND | SELECT DATEDIFF(SECOND,'2011-09-23 17:15:30','2011-09-23 17:16:23') | 53 |
| MINUTE | SELECT DATEDIFF(MINUTE,'2011-09-23 18:03:23','2011-09-23 17:15:30') | -48 |
| HOUR | SELECT DATEDIFF(HH,'2011-09-23 18:03:23','2011-09-23 20:15:30') | 2 |
| WEEK | SELECT DATEDIFF(WK,'09/23/2011 15:00:00','12/11/2011 14:00:00') | 12 |
| DAY | SELECT DATEDIFF(DD,'09/23/2011 15:00:00','08/02/2011 14:00:00') | -52 |
| DAYOFYEAR | SELECT DATEDIFF(DY,'01/01/2011 15:00:00','08/02/2011 14:00:00') | 213 |
| MONTH | SELECT DATEDIFF(MM,'11/02/2011 15:00:00','01/01/2011 14:00:00') | -10 |
| QUARTER | SELECT DATEDIFF(QQ,'01/02/2011 15:00:00','08/01/2011 14:00:00') | 2 |
| YEAR | SELECT DATEDIFF(YY,'01/02/2011 15:00:00','01/01/2016 14:00:00') | 5 |
Friday, April 12, 2013
SQL Server DateDiff Example
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