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AMB
Starting Member
6 Posts |
Posted - 2006-10-16 : 10:59:39
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Hi, I am new to SQL and currently select some data from a table by using the date constraint below:WHERE (DOCDATE BETWEEN '10/01/06' AND '10/31/06')Is there a better way of selecting the month and year?Thanks, Andy. |
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khtan
In (Som, Ni, Yak)
17689 Posts |
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Kristen
Test
22859 Posts |
Posted - 2006-10-16 : 11:04:39
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"Is there a better way of selecting the month and year?"That looks fine, however:In order for your "text" dates to be unambiguous you should use 'yyyymmdd' formatDates in SQL Server can include a time, so you would be better off using:WHERE (DOCDATE >= '20061001' AND DOCDATE < '20061101')There are functions you can use to manipulate dates - so if, for example, you have a parameter for the Start Date then you can use a function to calculate the first day of next month as your "limit"There are also functions that will let you extract the Year / Month from a date, however using these will prevent the use of any index on the Date column, and thus SQL Server will be slower, so you are better off with the BETWEEN or ">= AND <" approach because that will effectively use an index on the date column, if available.Kristen |
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