Liquibase script to change BLOB data to CLOB in oracle -


i need change 1 blob column type clob store data in json form. need migrate existing data new format. there way in liquibase convert stored blobs clob. links/ reference helpful

it u

create or replace function blob_to_clob (blob_in in blob) return clob      v_clob    clob;      v_varchar varchar2(32767);      v_start      pls_integer := 1;      v_buffer  pls_integer := 32767; begin      dbms_lob.createtemporary(v_clob, true);       in 1..ceil(dbms_lob.getlength(blob_in) / v_buffer)      loop          v_varchar := utl_raw.cast_to_varchar2(dbms_lob.substr(blob_in, v_buffer, v_start));             dbms_lob.writeappend(v_clob, length(v_varchar), v_varchar);            v_start := v_start + v_buffer;      end loop;     return v_clob;  end blob_to_clob; /

https://community.oracle.com/thread/206993


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