Firstly let me mention I am a noob to postgres,DB and sql anyway, I have a column with First names and need to list names that have non-alphanumeric characters in them like + or * and the list goes on. I did google a bit and tried:
select * from TABLE where first_name not like '%[a-z0-9]%';
However the above shows all the entries in that column and if I change it to Like, which should show all the entries it shows nothing.
e.g of my goal:
Column
Bob
Jane+
Harry*
John
Mike
Larry
My query should output
Jane+
Harry*
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