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    <p>To get the results described in your question the following works.</p> <pre><code>SELECT * FROM datatable WHERE refid = 11 OR refid = 16 </code></pre> <p>If you look at your required results:</p> <pre><code>id refid date1 date2 nextdate 10 11 2007-02-15 2008-02-15 002/2007 11 11 2008-02-21 2009-02-21 001/2008 12 11 2009-02-09 2010-02-09 001/2009 13 11 2010-02-09 2011-02-09 002/2010 14 11 2011-07-19 2012-07-19 054/2011 15 11 2012-07-17 2014-07-17 066/2012 25 16 2007-02-15 2008-02-15 004/2007 27 16 2009-02-10 2010-02-10 004/2009 28 16 2010-02-12 2011-02-12 005/2010 29 16 2011-07-26 2012-07-26 055/2011 30 16 2012-07-18 2014-07-18 067/2012 </code></pre> <p>You will notice that the <code>date2</code> field does not meet the criteria which you have defined in your question:</p> <blockquote> <p>I have this datatable. I need to filter datatable by following condition: Remove all rows with <code>refid</code> where <code>date2</code> is less than 2014-01-01</p> </blockquote> <p>The date2 fields range from between 2008-02-15 and 2014-07-18. The only other reference which you have stated in your criteria was "with <code>refid</code>". Looking at your table and the results required, you will notice that the <code>refid</code> of the items you wanted to select were either 11 or 16 so the filtering on date specified in the question is proving to be more of a distraction to those attempting to help. You should consider clarifying your question to prevent further confusion and maybe creating an sql fiddle (goto: <a href="http://sqlfiddle.com/" rel="nofollow">http://sqlfiddle.com/</a>) so that people have the ability to compare their results to your required results rather than telling people to re-read your question.</p> <p><strong>EDIT:</strong></p> <p>The following should return all dataTable results where there is one or more dataTable entries with the same <code>refid</code> and <code>date2 &gt; '2014-01-01'</code></p> <pre><code>SELECT * FROM datatable t1 INNER JOIN ( SELECT DISTINCT refid FROM datatable WHERE date2 &gt; '2014-01-01' )t2 ON t1.refid = t2.refid </code></pre>
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    1. COI need general query because this is just part of my sql table. Table is big and there is a lot of ids
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    2. COI have changed question so maybe now it is better formulated :) Check now :)
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