How to get number of false in every column of a table?

Question

I have a table say T_myTable it has 5 columns and all have some values either true or false.

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col1 | col2 | col3 | col4 | col5
--         


        

Answer 1

Try this:

SELECT SUM(CASE col1 WHEN 'false' THEN 1 ELSE 0 END),
    SUM(CASE col2 WHEN 'false' THEN 1 ELSE 0 END),
    SUM(CASE col3 WHEN 'false' THEN 1 ELSE 0 END),
    SUM(CASE col4 WHEN 'false' THEN 1 ELSE 0 END),
    SUM(CASE col5 WHEN 'false' THEN 1 ELSE 0 END)
FROM T_myTable