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Hi All:
I'm building an application along the lines of the questionnaire
design on varlena.com [1], with slight modifications. In my design,
there's a table called chartversionquestion that collects different
questions into a bundle to create the questionnaire.
Using a view [2] very similar to the one on varlena, I pull all the
data from the value tables into one long list (cast to text). I
would like to be able to create a crosstab from this view such that
the short question name becomes a column header, with the related
value underneath.
Since the number of questions to be pivoted will vary per
questionnaire the method should accept a number of columns
parameter. The crosstab in the tablefunc contrib module expects the
columns to be explicitly identified before hand. I suppose it could
be possible to write a simple function to wrap the crosstab_n_cols
functions to be able to return a variable number, but that seems
hackish. Are there any other alternatives?
David Blewett
[1] http://www.varlena.com/GeneralBits/110.php
[2] http://www.varlena.com/varlena/GeneralBits/Tidbits/QnA/views.sql
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