Oracle Error ORA-64203: Destination buffer too small to hold CLOB data after character set conversion.

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.