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10980322
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2012-06-11T12:43:04.060
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2012-06-11T12:43:04.060
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<code>DATE</code> comparisons are very likely what you want here. If your from_date column has the data type of <code>DATE</code>, then your code should be safe and robust if you do this: <pre><code>WHERE from_date = STR_TO_DATE('06/11/2012', '%m/%d/%Y') </code></pre> @Repox pointed out that you might consider putting your date literals in the canonical format '2012-06-11'. That's true, if you can do it. But STR_TO_DATE will do it for you if you need it to. There's a list of the %x conversion items here. <a href="http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_date-format" rel="nofollow">http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_date-format</a> If you're using <code>DATETIME</code> data types, beware: comparisons are more complex than they seem. <code>DATETIME</code> items are like floating point numbers: if one of them exactly equals another it's only by coincidence. That's because they represent moments (milliseconds) in time, not just days. Presuming your from_date column has the <code>DATETIME</code> type, you should use <pre><code>WHERE from_date >= STR_TO_DATE('06/11/2012', '%m/%d/%Y') AND from_date < STR_TO_DATE('06/11/2012', '%m/%d/%Y') + INTERVAL 1 DAY </code></pre> This will catch all moments in time on the day you want, up to but not including the first moment of the next day. If your from_date items are represented as character strings, take the trouble to convert them to <code>DATE</code> or <code>DATETIME</code> data types. Seriously. Your results will be far better.
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1. POhow do I select on date equality in a mySQL query?
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1. USO. Jones
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