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POConcatenate 2 rows in a complex SQL query
 

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    <p>I'm using MS-Access 2003 with the query creator. I select everything from one table (<code>FaitsSaillants</code>), then one specific row (<code>WHERE VARIABLE='TitreMandat'</code>) from another table (<code>tb_SOMMAIRE</code>). I want to select another row from that second table and concatenate it.</p> <h2>The query</h2> <pre class="lang-sql prettyprint-override"><code>PARAMETERS [CurrAxe] Text ( 255 ), [CurrOTP] Text ( 255 ), [CurrClient] Text ( 255 ), [StartDate] DateTime, [EndDate] DateTime; SELECT tb_SOMMAIRE.Valeur AS Projet, tb_SOMMAIRE.VARIABLE, * FROM (FaitsSaillants LEFT JOIN Employes ON FaitsSaillants.Utilisateur = Employes.CIP) INNER JOIN tb_SOMMAIRE ON FaitsSaillants.OTP = tb_SOMMAIRE.OTP WHERE (((FaitsSaillants.OTP)=[CurrOTP]) AND ((FaitsSaillants.Client) Like [CurrClient]) AND ((FaitsSaillants.Axe) Like [CurrAxe]) AND ((DateValue([DateInsertion]))&gt;=[StartDate] AND (DateValue([DateInsertion]))&lt;=[EndDate]) AND ((tb_SOMMAIRE.VARIABLE)='TitreMandat')) ORDER BY FaitsSaillants.DateInsertion DESC; </code></pre> <p>This query does add the <code>tb_SOMMAIRE.Valeur</code> field where the IDs (<code>OTP</code> field) match and where <code>tb_SOMMAIRE.VARIABLE='TitreMandat'</code>. It works like a charm. However, I want to add another row to the <code>tb_SOMMAIRE</code> results. I would like to get the row where <code>VARIABLE='TitreMandat'</code> (that part is actually working) and the row where <code>VARIABLE='NomInstallation'</code>. I will get 2 rows and I want those 2 rows to be concatenated and displayed when I ask for <code>Projet</code> (<code>tb_SOMMAIRE.Value as Projet</code>). Both rows' <code>OTP</code> (IDs) are the same as the one selected in <code>FaitsSaillants</code>.</p> <p>Sorry if it's in French.</p> <h2>Tables' structure</h2> <p>FaitsSaillants</p> <blockquote> <pre><code>Index AutoNumber Projet Text Axe Text Client Text OTP Text FaitSaillant Memo DateInsertion Date Utilisateur Text </code></pre> </blockquote> <p>tb_SOMMAIRE</p> <blockquote> <pre><code>OTP Text VARIABLE Text Valeur Text </code></pre> </blockquote> <h2>Data example</h2> <p>tb_SOMMAIRE</p> <blockquote> <pre><code>OTP VARIABLE Valeur UGPSW NomInstallation PosteNemiscau UGPSW TitreMandat oscilloperturbographe UGPSW RespIng CU9656 GWIHK NomInstallation AnotherInstallation GWIHK TitreMandat Anytitle GWIHK Responsable ImportantPerson </code></pre> </blockquote>
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