Hi
I have to rearrange the months according to the fiscal year i.e from April
to march and use the same in the order by clause of a query.
I have written the following postgresql function for the same, but to_number
is returning an error.
Can you please tell me where i'm going wrong?
Instead of the function to_number can you suggest any other function that
will convert a particular month to its corresponding month number(ex:
april=4 or jan=1)
CREATE FUNCTION sort_month(to_number('April','MM')) RETURNS numeric AS $$
DECLARE
BEGIN
CASE WHEN 4 THEN 1 WHEN 5 THEN 2 WHEN 6 THEN 3 WHEN 7 THEN 4 WHEN 8 THEN
5 WHEN 9 THEN 6 WHEN 10 THEN 7 WHEN 11 THEN 8 WHEN 12 THEN 9 WHEN 1
THEN10 WHEN 2 THEN 11 WHEN 3 THEN 12 ELSE 0
END;
$$ LANGUAGE plpgsql;
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