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    <p>This is quite basic but if I've understood you correctly:</p> <pre><code>DELETE FROM tableName WHERE date2 &lt; '2014-01-01' AND NOT (refid IS NULL) </code></pre> <p><strong>Edit</strong></p> <p>As stated in the comment below I possibly misunderstood the following part of the question to mean that the entries needed deleting.</p> <blockquote> <p>Remove all rows with refid where date2 is less than 2014-01-01</p> </blockquote> <p>In which case the following would return all results after the specified date instead:</p> <pre><code>SELECT * FROM tableName WHERE date2 &gt; '2014-01-01' AND NOT (refid IS NULL) </code></pre> <p>I have also assumed that the "with refid" means that <code>refid</code> should be populated.</p> <p>To get the results described in the original question however I'd simplify the query as follows as the date part specificied wouldn't give the results:</p> <pre><code>SELECT * FROM tableName WHERE (refid = 11) OR (refid = 16) </code></pre> <p><strong>Another Edit</strong></p> <p>The following should return all entries assigned to a <code>refid</code> with any entries with a <code>date2</code> after <code>2014-01-01</code></p> <pre><code>SELECT DISTINCT t1.* FROM tableName t1 INNER JOIN tableName t2 ON t1.refid = t2.refid AND t2.date2 &gt; '2014-01-01' </code></pre> <p>Alternatively you could use exists:</p> <pre><code>SELECT * FROM tableName t1 WHERE EXISTS( SELECT * FROM tableName t2 WHERE t1.refid = t2.refid AND t2.date2 &gt; '2014-01-01' ) </code></pre> <p>Or link to a separate table of <code>refid</code>'s which fit the profile</p> <pre><code>SELECT * FROM tableName t1 INNER JOIN ( SELECT DISTINCT refid FROM tableName WHERE date2 &gt; '2014-01-01' )t2 ON t1.refid = t2.refid </code></pre>
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    1. POFilter data with query
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    1. COWas not the question how to filter the result, not delete rows. In that case just change DELETE To SELECT
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    2. COI need to return values with query, not to delete them.
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      1. USJovica Kuresevic
    3. COAll there queries are not ok because I dont't get wanted result!
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      1. USJovica Kuresevic
 

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