Example

Teradata Vantageā„¢ SQL Functions, Expressions, and Predicates

brand
Software
Teradata Vantage
prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

The following query:

SELECT REGEXP_SUBSTR('mint chocolate chip chop', ' ch(i|o)p', 1, 2, 'i'); 

returns 'chop' because it is the second occurrence of the match.