REgex to get numeric from string in oracle

Question

I have strings in the following formats

Akram_88_jamesstree_20140418, Akram_8_johnstreet_20140418, Akram_888_johnstreet_20140418,

Now I want to retrieve only the

Answer 1

SELECT REGEXP_SUBSTR('Akram_88_jamesstree','[0-9]+')

Here put your column Name in place of 'Akram_88_jamesstree'.