SQL to present data in parallel

• Data9

  SSC-Addicted

  Points: 453

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  January 13, 2020 at 5:08 am

  #3714805

  Hi there,

  I have a sql question wondering your sql expertise. My data as follows pasted in the screenshot attached and it is in the same table AS displayed below. I would like to a self join so it display as mentioned in the second sheet in the same picture attached using sql.  I have tried joins, pivots and all options. Appreciate the help.

  I would like to split the data side by side based on the matching Name but different flags side by side. I am ok having different column names but output should be returned from one select. hope you got my req.

   

  

   

  Sincerely

   

• Jo Pattyn

  SSC-Dedicated

  Points: 32415

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  January 13, 2020 at 4:06 pm

  #3714949

  --to be validated
  --cte or tablealias for selfjoin
  WITH TABLEDATA AS
  (
  SELECT ...
  FROM TABLE_DATA
  )
  SELECT TYTD.COLUMNS, TMTD.COLUMNS
  FROM TABLEDATA TYTD
  LEFT JOIN TABLEDATA TMTD
  ON TYTD.NAME=TMTD.NAME
  AND TYTD.COMPANY = TMTD.COMPANY
  AND TMTD.Flag='MTD'
  ...
  WHERE TYTD.Flag='YTD'; 
  --also possible
  SELECT YTD.columns, MTD.columns
  FROM 
  (
  SELECT ... FROM TABLE_DATA WHERE FLAG='YTD'
  ) SELECTION_YTD
  LEFT JOIN
  (
  SELECT ... FROM TABLE_DATA WHERE FLAG='MTD'
  ) SELECTION_MTD
  ON SELECTION_YTD.NAME=SELECTION_MTD.NAME
  AND ...
  

  • This reply was modified 5 years, 4 months ago by  Jo Pattyn. Reason: where flag