Question : Oracle SQL: why this regular expression doesn't work?

Hi Experts:

    I am using the following statement to test regular expression.

select case when regexp_like('a','[0-9]*') then 1 else 0 end from dual;

    I am expecting it to return 0, but it returns 1. I just want to find two regular expressions, one helps me to detect integers and one helps me to detect decimal numbers (like 32.56). What shall they be?

    Thank you.

Answer : Oracle SQL: why this regular expression doesn't work?

I tried FEC (FastEtherChannel) and it seems to be working.

What is the difference between FEC and LACP?