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    <p>You could create a union query such as:</p> <pre> SELECT Table2.Key1, Table2.Key2, Table2.Key3, CASE WHEN Table1.Value1 &lt;&gt; Table2.Value1 THEN 'Value1' END AS DifferingFields FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value1 &lt;&gt; Table2.Value1 UNION ALL SELECT Table2.Key1, Table2.Key2, Table2.Key3, CASE WHEN Table1.Value2 &lt;&gt; Table2.Value2 THEN 'Value2' END FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value2 &lt;&gt; Table2.Value2 UNION ALL SELECT Table2.Key1, Table2.Key2, Table2.Key3, CASE WHEN Table1.Value3 &lt;&gt; Table2.Value3 THEN 'Value3' END FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value3 &lt;&gt; Table2.Value3 [... add statements for the remaining value fields ...] </pre> <p>This will return the values of the 3 key fields, with the names of the fields that are contain differing values.</p> <p>For Microsoft Access, use:</p> <pre> SELECT Table2.Key1, Table2.Key2, Table2.Key3, IIF(Table1.Value1 &lt;&gt; Table2.Value1,"Value1","") AS DifferingFields FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value1 &lt;&gt; Table2.Value1 UNION ALL SELECT Table2.Key1, Table2.Key2, Table2.Key3, IIF(Table1.Value2 &lt;&gt; Table2.Value2, "Value2","") FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value2 &lt;&gt; Table2.Value2 UNION ALL SELECT Table2.Key1, Table2.Key2, Table2.Key3, IIF(Table1.Value3 &lt;&gt; Table2.Value3, "Value3","") FROM Table2 LEFT JOIN Table1 ON Table2.Key1 = Table1.Key1 AND Table2.Key2 = Table1.Key2 AND Table2.Key3 = Table1.Key3 WHERE Table1.Value3 &lt;&gt; Table2.Value3 </pre> <p>If you consider the following data: </p> <p>Table1:<br> Key1 Key2 Key3 Value1 Value2 Value3<br> 1 2 3 4 5 6<br> 1 2 4 4 5 8<br> 1 2 5 4 5 10<br> 1 2 6 4 6 10 </p> <p>Table2:<br> Key1 Key2 Key3 Value1 Value2 Value3<br> 1 2 3 4 5 7<br> 1 2 4 4 5 9<br> 1 2 5 4 5 11<br> 1 2 6 4 5 11 </p> <p>You get results as:<br> Key1 Key2 Key3 DifferingFields<br> 1 2 6 Value2<br> 1 2 3 Value3<br> 1 2 4 Value3<br> 1 2 5 Value3<br> 1 2 6 Value3 </p>
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    1. POOutput unmatched columns when comparing two sql tables
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    1. USMax Vernon
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    1. COThanks Max, I will try the above suggestion!
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    2. COThen transpose the differing fields column to get the value2 & value3 for 1 2 6 in the same row? like this: 1 2 6 value2 value3
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    3. COI would use an Access Crosstab Query against the output of my Union query if you really want to see the results in a horizontal fashion.
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