code: @Override
     protected void prepareQueries() throws SQLException
     {
        super.prepareQueries();
  
        FIND_WORKSPACE_DATA_SIZE = "select sum(len(DATA)) from " + JCR_VALUE;
  
        FIND_NODE_DATA_SIZE =
           "select sum(len(DATA)) from " + JCR_ITEM + " I, " + JCR_VALUE
              + " V  where I.PARENT_ID=? and I.I_CLASS=2 and I.ID=V.PROPERTY_ID";
  
        FIND_VALUE_STORAGE_DESC_AND_SIZE = "select len(DATA), STORAGE_DESC from " + JCR_VALUE + " where PROPERTY_ID=?";
     }
docs: {@inheritDoc}