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    <p>As others have already told you, you could just use the two queries as derived tables (subselects) and join them using each one's <code>Hora</code> column. It doesn't matter if the column is computed in the query, it's perfectly legal to use it in a join condition.</p> <p>However, I think you can get the same results more efficiently, by calculating both counts in a single query (i.e. without subqueries). Here's how you can do that:</p> <pre><code>SELECT ( CAST(DATEPART(HOUR, m.Ocr_DataHora) AS NVARCHAR) + ':' + CAST((DATEPART(MINUTE, m.Ocr_DataHora) % 6) AS NVARCHAR) + '0' ) AS Hora, <b>COUNT(*)</b> AS Movimentações, <b>COUNT(CASE WHEN s.Veiculo_Modelo &lt;> '' THEN 1 END)</b> AS Sucesso FROM Integracao m WHERE m.Ocr_DataHora >= '2012-09-17 00:00:00.000' AND m.Ocr_DataHora &lt; '2012-09-18 00:00:00.000' GROUP BY DATEPART(HOUR, m.Ocr_DataHora), (DATEPART(MINUTE, m.Ocr_DataHora) % 6) ORDER BY DATEPART(HOUR, m.Ocr_DataHora), (DATEPART(MINUTE, m.Ocr_DataHora) % 6) </code></pre> <p>As you can see, the query doesn't filter rows on <code>s.Veiculo_Modelo &lt;&gt; ''</code>. However, that condition is used when counting rows for the <code>Sucesso</code> column. The argument of the second <code>COUNT</code> is a CASE expression. It returns a value (arbitrarily chosen to be <code>1</code>, but could be anything really) if the specified condition is met and <code>NULL</code> otherwise. Since <code>COUNT</code> omits nulls, the result will be the same as with your dedicated query calculating and returning <code>Sucesso</code>.</p>
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    1. COI really never though i can do an case statement in count! :O Even in the documentation nothing is mentioned!!
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