text: -- DropForeignKey
  ALTER TABLE `address` DROP FOREIGN KEY `address_ibfk_1`;
  
  -- DropForeignKey
  ALTER TABLE `price` DROP FOREIGN KEY `price_ibfk_1`;
  
  -- DropForeignKey
  ALTER TABLE `price` DROP FOREIGN KEY `price_ibfk_2`;
  
  -- AlterTable
  ALTER TABLE `user` MODIFY `phoneNumber` VARCHAR(191);
  
  -- AddForeignKey
  ALTER TABLE `Address` ADD FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
  
  -- AddForeignKey
  ALTER TABLE `Price` ADD FOREIGN KEY (`bookId`) REFERENCES `Book`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
  
  -- AddForeignKey
  ALTER TABLE `Price` ADD FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
  