INSERT INTO `currencies` (`id`, `name`, `code`) VALUES (NULL, 'Bulgarian Lev', 'BGN');
ALTER TABLE `expenses` ADD `attachment` VARCHAR(256) NULL AFTER `expense_date`; 
ALTER TABLE `expenses` ADD `note` VARCHAR(256) NULL AFTER `expense_date`; 
ALTER TABLE `income` ADD `attachment` VARCHAR(256) NULL AFTER `income_date`; 
ALTER TABLE `income` ADD `note` VARCHAR(256) NULL AFTER `income_date`; 
ALTER TABLE `income` CHANGE `income_group` `income_group` VARCHAR(255) NULL; 