Hi All, what regular expression would you suggest to get all ORA- errors (with from 1 to 5 numbers) out of some text like this: ' ORA-00001 ora-0002 ora ora-003 aasdlkja alksdj alksdj laskdj ORA-04 aaaa a a a aora-5 ' I am trying to figure out how to use regexp_replace to replace all characters around ora-... errors to get output: 'ORA-00001 ora-0002 ora-003 ORA-04 ora-5' but can't find appropriate expression so far: with s1 as (select ' ORA-00001 ora-0002 ora ora-003 aasdlkja alksdj alksdj laskdj ORA-04 aaaa a a a aora-5 ' s from dual) select regexp_replace(s, *'...'*, '...', 1, 0, 'i') from s1 / -- Regards, Andrey Goryunov