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cognos79
Posting Yak Master
241 Posts |
 Posted - 2007-09-27 : 14:42:06
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| How do i find out if two dates are exactly 3 yrs apart or not.stdate: 12/1/2005enddate: 11/10/2008. the result shld 2 yrs .I dont care abt the days. just the months and years. |
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dinakar
Master Smack Fu Yak Hacker
2507 Posts |
Posted - 2007-09-27 : 14:50:48
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| Use Datediff.Dinakar Nethi************************Life is short. Enjoy it.************************http://weblogs.sqlteam.com/dinakar/ |
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Kristen
Test
22859 Posts |
Posted - 2007-09-27 : 15:08:01
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| "exactly 3 yrs apart or not"<sigh!>What does that mean?Same day same month 3 years ago?What is the correct value for 29-Feb?Kristen |
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Kristen
Test
22859 Posts |
Posted - 2007-09-27 : 15:10:52
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| I suppose you could doSELECT DATEDIFF(Month, '20051201', '20081110') = 36That satisfies the "months and years" requirement, but I don't see how that is "exactly 3 yrs apart"Note that using DATEDIFF on a column will prevent the query using any index on that column, so performance may be sub-optimal.Kristen |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2007-09-28 : 03:07:56
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http://www.sqlteam.com/article/datediff-function-demystified
E 12°55'05.25"N 56°04'39.16" |
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dates difference