text: 
    /*
    Copyright (c) 2010 Jonas Krogsboell
  
    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:
  
    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.
  
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
    */
  
  declare begin
    begin execute immediate 'drop package json_parser'; exception when others then null; end;
    begin execute immediate 'drop package json_printer'; exception when others then null; end;
    begin execute immediate 'drop package json_ext'; exception when others then null; end;
    begin execute immediate 'drop package json_dyn'; exception when others then null; end;
    begin execute immediate 'drop package json_ml'; exception when others then null; end;
    begin execute immediate 'drop package json_xml'; exception when others then null; end;
    begin execute immediate 'drop package json_util_pkg'; exception when others then null; end;
    begin execute immediate 'drop package json_helper'; exception when others then null; end;
    begin execute immediate 'drop package json_ac'; exception when others then null; end;
    begin execute immediate 'drop type json force'; exception when others then null; end;
    begin execute immediate 'drop type json_member_array force'; exception when others then null; end;
    begin execute immediate 'drop type json_member force'; exception when others then null; end;
    begin execute immediate 'drop type json_list force'; exception when others then null; end;
    begin execute immediate 'drop type json_element_array force'; exception when others then null; end;
    begin execute immediate 'drop type json_element force'; exception when others then null; end;
    begin execute immediate 'drop type json_bool force'; exception when others then null; end;
    begin execute immediate 'drop type json_null force'; exception when others then null; end;
    begin execute immediate 'drop type json_value_array force'; exception when others then null; end;
    begin execute immediate 'drop type json_value force'; exception when others then null; end;
    begin execute immediate 'drop type pljson_narray force'; exception when others then null; end;
    begin execute immediate 'drop type pljson_vtab force'; exception when others then null; end;
    begin execute immediate 'drop type pljson_varray force'; exception when others then null; end;
    begin execute immediate 'drop type pljson_table_impl force'; exception when others then null; end;
    begin execute immediate 'drop synonym pljson_table'; exception when others then null; end;
    begin execute immediate 'drop synonym json_table'; exception when others then null; end;
  end;
  /
  