Extracts a substring from source_string that matches a regular expression specified by regexp_string.
REGEXP_SUBSTR supports 2, 3, 4, or 5 parameters.
REGEXP_SUBSTR is an embedded services system function.
Extracts a substring from source_string that matches a regular expression specified by regexp_string.
REGEXP_SUBSTR supports 2, 3, 4, or 5 parameters.
REGEXP_SUBSTR is an embedded services system function.