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POTransform vertical result into horizontal mode (T-SQL)
 

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  1. POTransform vertical result into horizontal mode (T-SQL)
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    <p>Here are the sample data :</p> <p><kbd>CalculationDate</kbd><kbd>PLResult</kbd><br> <kbd>2014-01-02&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-01-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>200&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-02-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>300&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-02-04&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>400&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-02-27&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>500&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br></p> <p>Here are the expected result (in logical format) :</p> <p><kbd>January&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>February&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>CalculationDate</kbd><kbd>PLResult</kbd><kbd>CalculationDate</kbd><kbd>PLResult&nbsp;&nbsp;</kbd><br> <kbd>2014-01-02&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>300&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-01-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>200&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-04&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>400&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-27&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>500&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br></p> <p>Here are the expected result (using T-SQL Query) :</p> <p><kbd>Jan-CalculationDate</kbd><kbd>Jan-PLResult</kbd><kbd>Feb-CalculationDate</kbd><kbd>Feb-PLResult&nbsp;&nbsp;</kbd><br> <kbd>2014-01-02&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>300&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd>2014-01-03&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>200&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-04&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>400&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br> <kbd> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>2014-02-27&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><kbd>500&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</kbd><br></p> <p>Objective:</p> <ul> <li>Classify the result according to the month. In the above example, the January's results are placed in the January breakdown.</li> <li>The number of months can be dynamic. In the above example, it only shows January and February because there are only results for 2 months</li> <li>The result will be displayed through Excel. Actually I can query multiple query tables to aggregate the result across different months, but if it's possible to return all the result through one single query, then it will be easier to be maintained and debugged.</li> </ul> <p>Here are the scripts to populate the sample data : <BR></p> <pre><code>CREATE TABLE #PLResultPerDay ( CalculationDate DATETIME, PLResult DECIMAL(18,8) ) INSERT INTO #PLResultPerDay ( CalculationDate, PLResult ) VALUES ('2014-01-02' , 100 ) INSERT INTO #PLResultPerDay ( CalculationDate, PLResult ) VALUES ('2014-01-03' , 200 ) INSERT INTO #PLResultPerDay ( CalculationDate, PLResult ) VALUES ('2014-02-03' , 300 ) INSERT INTO #PLResultPerDay ( CalculationDate, PLResult ) VALUES ('2014-02-04' , 400 ) </code></pre> <p>So far here is my attempt in building the query : <BR><BR></p> <pre><code>SELECT CalculationDate, [January], CalculationDate, [February] FROM ( SELECT CalculationDate, PLResult, DATENAME(MONTH, CalculationDate) AS [MTH] FROM #PLResultPerDay ) x PIVOT ( MIN(PLResult) FOR [MTH] IN ([January], [February]) ) p </code></pre>
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    1. USa_horse_with_no_name
    1. UShadi teo
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      1. POTransform vertical result into horizontal mode (T-SQL)
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      1. VTUpMod
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      1. USTeamDataViz.
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    1. COYour expected results aren't actually possible. You can't have a hierarchy of columns. If you want it presented in that manner do it in the presentation layer. SQL will return 4 columns. e.g. `JanCalc, JanPL, FebCalc, FebPL`
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      1. POTransform vertical result into horizontal mode (T-SQL)
      1. USMartin Smith
    2. CO@MartinSmith : Thanks, I have made some corrections to the expected result.
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      1. UShadi teo
    3. COThe edited result is still not possible, PIVOT does not work this way. This type of manipulation should not be made in SQL, do it in the code consuming the SQL result instead.
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      1. POTransform vertical result into horizontal mode (T-SQL)
      1. USDaniel B
 

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