USE baiyue_lastleg;

SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='carton_total_file_id'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN carton_total_file_id VARCHAR(128) NULL COMMENT ''箱唛总文件ID'' AFTER total_file_url'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='carton_total_file_name'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN carton_total_file_name VARCHAR(255) NULL COMMENT ''箱唛总文件名'' AFTER carton_total_file_id'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='carton_total_file_url'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN carton_total_file_url VARCHAR(1000) NULL COMMENT ''箱唛总文件地址'' AFTER carton_total_file_name'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='sku_total_file_id'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN sku_total_file_id VARCHAR(128) NULL COMMENT ''SKU总文件ID'' AFTER carton_total_file_url'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='sku_total_file_name'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN sku_total_file_name VARCHAR(255) NULL COMMENT ''SKU总文件名'' AFTER sku_total_file_id'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_relabel_application' AND column_name='sku_total_file_url'), 'SELECT 1', 'ALTER TABLE ll_relabel_application ADD COLUMN sku_total_file_url VARCHAR(1000) NULL COMMENT ''SKU总文件地址'' AFTER sku_total_file_name'));
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;