text: drop table if exists Sagyou_meisai;
  drop table if exists Syuttyou_meisai;
  drop table if exists Kaisyuu_meisai;
  drop table if exists Setti_meisai;
  drop table if exists Taiou_meisai;
  
  drop table if exists Gentyou_tehai;
  drop table if exists Gentyou;
  drop table if exists Recall_taiou;
  drop table if exists Yobou_hozen;
  drop table if exists Syuuri_taiou;
  drop table if exists Sita_kusa_kari;
  drop table if exists Enkaku_kansi;
  drop table if exists Teiki_tenken;
  
  drop table if exists Teiki_tenken_Yobou_hozen;
  drop table if exists Hosyu_Gouki;
  drop table if exists Sita_kusa_kari_keiyaku;
  drop table if exists Yobou_hozen_keiyaku;
  drop table if exists Enkaku_kansi_keiyaku;
  drop table if exists Teiki_tenken_keiyaku;
  drop table if exists Hosyu_keiyaku;
  
  drop table if exists Recall_waku;
  drop table if exists Recall;
  drop table if exists Kosyou_Hinmoku;
  drop table if exists Kosyou_Cause;
  drop table if exists Service_han;
  
  drop table if exists Buzai_Gouki;
  drop table if exists Seihin_Buzai;
  drop table if exists Buzai;
  drop table if exists Seihin;
  drop table if exists Hinmoku;
  drop table if exists Hinsyu;
  
  drop table if exists Toiawase;
  drop table if exists Hatuden_corporation;
  drop table if exists Gouki;
  drop table if exists Miriyou_plant;
  drop table if exists Sangyou_plant;
  drop table if exists Jutaku_plant;
  drop table if exists Hatuden_plant;
  drop table if exists Erea;
  drop table if exists End_user;
  drop table if exists Eigyousyo;
  