oracle hämta alla matchade förekomster från en kolumn

du kan prova den här frågan.

 with test as(
  select 'ABC12345, DE22222' as JOB_Description from DUAL union
  select 'Please help to repair ABC12345, DE22222' as JOB_Description from DUAL 
)
SELECT REGEXP_SUBSTR(JOB_Description, '(ABC|DE)([[:digit:]]){5}', 1, LEVEL) AS substr
FROM test
CONNECT BY LEVEL <= REGEXP_COUNT(JOB_Description, '(ABC|DE)([[:digit:]]){5}')
  AND PRIOR JOB_Description = JOB_Description
  AND PRIOR DBMS_RANDOM.VALUE IS NOT NULL

Resultat:

ABC12345
DE22222
ABC12345
DE22222

En bra förklaring av de två sista raderna finns här