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BLOBת»»ÎªCLOBµÄº¯Êý£¨oracleÖÐÖ´ÐУ©
CREATE OR REPLACE FUNCTION BlobToClob(blob_in IN BLOB) RETURN CLOB AS
  v_clob    CLOB;
  v_varchar VARCHAR2(32767);
  v_start  PLS_INTEGER := 1;
  v_buffer  PLS_INTEGER := 32767;
BEGIN
  DBMS_LOB.CREATETEMPORARY(v_clob, TRUE);
 
  FOR i 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);
    DBMS_OUTPUT.PUT_LINE(v_varchar);
    v_start := v_start + v_buffer;
  END LOOP;
 
  RETURN v_clob;
 
END BlobToClob;
 
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    Connection con = ConnectionFactory.getConnection(); &n