Oracle Error Message
ORA-64203: Destination buffer too small to hold CLOB data after character set conversion.
Reason for the Error
An attempt was made to convert CLOB to CHAR, where the LOB size was bigger than the buffer limit for CHAR types or the CHAR buffer was not big enough to hold all data after character set conversion.
Solution
Do one of the following:
* Make the LOB smaller before performing the conversion. for example, by using SUBSTR on CLOB
* Use DBMS_LOB.SUBSTR to convert CLOB to CHAR.