ALTER TABLE `customer_applications`
ADD COLUMN `major_product` VARCHAR(255) DEFAULT NULL,
ADD COLUMN `capital` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `capital_currency` VARCHAR(10) DEFAULT NULL,
ADD COLUMN `main_shareholders` TEXT DEFAULT NULL,
ADD COLUMN `num_employees` INT DEFAULT NULL,
ADD COLUMN `payment_terms_ar` VARCHAR(255) DEFAULT NULL,
ADD COLUMN `pl_year` YEAR DEFAULT NULL,
ADD COLUMN `net_sales` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `net_income_margin` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `net_income_margin_ratio` DECIMAL(5, 2) DEFAULT NULL,
ADD COLUMN `sales_target_this_year` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `sales_target_next_year` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `sales_target_after_next` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `credit_rank` VARCHAR(255) DEFAULT NULL,
ADD COLUMN `credit_limit` DECIMAL(20, 2) DEFAULT NULL,
ADD COLUMN `credit_research_status` VARCHAR(255) DEFAULT NULL,
ADD COLUMN `credit_research_reason` TEXT DEFAULT NULL,
ADD COLUMN `tax_rate_area` VARCHAR(255) DEFAULT NULL,
ADD COLUMN `billing_type` VARCHAR(255) DEFAULT NULL;