oracle 更新clob字段 pg直接写update

DECLARE  
  clobValue gspdatabaseobject.content%TYPE;  
BEGIN  
  clobValue := 'very long text';
  UPDATE gspdatabaseobject  SET content = clobValue,code='FIGLAccDocEntryOp' WHERE code='fiGLAccDocEntryOp';  
  COMMIT;  
END;  

 以上方法字符串在plsql里不能超过32k