PostgreSQL ORDER BY issue - natural sort

Question

I\'ve got a Postgres ORDER BY issue with the following table:

em_code  name
EM001    AAA
EM999    BBB
EM1000   CCC

To insert a

Answer 1

I thought about another way of doing this that uses less db storage than padding and saves time than calculating on the fly.

https://stackoverflow.com/a/47522040/935122

I've also put it on GitHub

https://github.com/ccsalway/dbNaturalSort