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POexcel 2010 vba. sql query over columns 'like' vlookup
 

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  1. POexcel 2010 vba. sql query over columns 'like' vlookup
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    <p>I have a "Filename.accdb" (2010) file to which I established a connection with Excel's VBA.</p> <p>Let's say that within the file I have a TableA:</p> <pre><code>Column1 Column2 Worker ------- ------- ------- Text1 Text2 15 Text3 Text4 4 ... Text5 Text6 20 </code></pre> <p>And a TableB:</p> <pre><code>ID Name ------- ------- 1 Name1 4 Name4 15 Name15 ... 20 Name20 </code></pre> <p>I am able to import those tables into a worksheet, but what I'd like to achieve is this:</p> <p>Desired query result (I don't want the whole TableA):</p> <pre><code>Column1 Worker ------- ------- Text1 Name15 Text3 Name4 ... Text5 Name20 </code></pre> <p>At the moment, I am importing both tables separately and then writing the values of the "Name" column into the "Worker" column. I achieve this with a for loop and the function Vlookup(...). It's fast and works fine, so what is my problem?</p> <p>Well, it generates plenty of code and I am sure that it must be possible by a sql query. Also, I think I would learn a lot from this as I am quite new to sql.</p> <p>This is my string so far ...</p> <pre><code>sql = "SELECT TableA.Column1, TableA.Worker, TableB.Name " &amp; _ "FROM TableA " &amp; _ "LEFT JOIN TableB " &amp; _ "ON TableB.ID = TableA.Worker" </code></pre> <p>It doesn't work and throws the "... cannot perform join on multiple fields error ..." I couldn't find a solution for me in the internet.</p> <p>Does anyone see the problem? What am I doing wrong?</p> <p>Thanks in advance Cheers</p>
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