Hello,
So I have am playing with a view to test the feasibility of a
technique for storing some data.
It basically goes something like this:
CREATE VIEW formatted_table AS
SELECT name,
replace(some_template, '@', some_type) AS some_field
FROM some_table;
some_template is something like 'foo@bar' or 'foobar' (note the
missing template character).
some_type is a single letter like 'a' or 'b', or it can be NULL.
The above view works fine for rows where some_type is a letter, and
some_field ends up as 'fooabar' or whatever.
However, when some_type is NULL, some_field ends up as NULL as well.
I understand that this is expected behaviour, but how do I cause the
view to treat a some_type of NULL as an empty string, so that
some_field simply ends up as 'foobar'?
Hope that was clear.
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