Search for a particular string in Oracle clob column

Question

How to get a particular string from a clob column?

I have data as below which is stored in clob column called product_details

CALCULATIO         


        

Answer 1

ok, you may use substr in correlation to instr to find the starting position of your string

select 
  dbms_lob.substr(
       product_details, 
       length('NEW.PRODUCT_NO'), --amount
       dbms_lob.instr(product_details,'NEW.PRODUCT_NO') --offset
       ) 
from my_table
where dbms_lob.instr(product_details,'NEW.PRODUCT_NO')>=1;