The clob data analysis - helps in the regular Expression


Need to analyze a clob and and get its value.

with the temp as

(select '-dn=cn=9245fe4a-d402-451c-b9ed-9c1a04247482,ou=people,dc=idauth-userstore,dc=standardlife,dc=com' as double val)

Select * Temp;

"Analysis to include only the characters after ' dn = cn =" and ending with a comma, so I need to value the O/P as feadcbedca

How to achieve this using regular expressions.

Also is it a useful site to learn Oracle regular expressions for beginners like me.

If yes give me the link, it will be useful.

Thanks in advance


SQL> with temp
  2  as
  3  (
  4  select '- dn=cn=9245fe4a-d402-451c-b9ed-9c1a04247482,ou=people,dc=idauth-userstore,dc=standardlife,dc=com' as val from dual
  5  )
  6  select regexp_replace(ltrim(regexp_substr(val, 'dn=cn=[^,]+'), 'dn=cn='), '[^[:alpha:]]') val
  7    from temp;



Tags: Database

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