Comparing Computed columns

• rajkiran-331110

  SSC Enthusiast

  Points: 144

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  September 17, 2008 at 5:08 am

  #190851

  Hello,

  I have got 2computed columns.

  select * from table followed by condition as memotype1

  I want to pick up my memovalue1 based on memotype1

  When i did select * from where memotype=memotype1 ,it is not picking the value.

  how can i compare a computed column to populate another computed column

• HanShi

  SSC-Dedicated

  Points: 33506

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  September 17, 2008 at 6:23 am

  #872948

  It's a bit hard to understand your question. Can you post the complete query?

  You can try to use the computed phrase to fill your column:

  For instance if your computed column is like:

  SELECT (Column1 + Column2) * 3 AS Computed

  FROM table

  instead of using this to fill another table

  UPDATE table2

  SET ColumnA = Computed

  FROM table2 INNER JOIN table ON table1.ID = table2.ID

  WHERE ...

  you can use this to fill another table:

  UPDATE table2

  SET ColumnA = (table2.Column1 + table2.Column2) * 3

  FROM table2 INNER JOIN table ON table1.ID = table2.ID

  WHERE ...

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