-- 설비 테이블 컬럼 추가 (phpMyAdmin용)
-- 현재 구조: equipment_id, factory_id, equipment_name, model, status, purchase_date, description, created_at, updated_at

-- 필요한 컬럼 추가
ALTER TABLE equipments ADD COLUMN equipment_code VARCHAR(50) NULL COMMENT '관리번호' AFTER equipment_id;
ALTER TABLE equipments ADD COLUMN specifications TEXT NULL COMMENT '규격' AFTER model;
ALTER TABLE equipments ADD COLUMN serial_number VARCHAR(100) NULL COMMENT '시리얼번호(S/N)' AFTER specifications;
ALTER TABLE equipments ADD COLUMN supplier VARCHAR(100) NULL COMMENT '구입처' AFTER purchase_date;
ALTER TABLE equipments ADD COLUMN purchase_price DECIMAL(15, 0) NULL COMMENT '구입가격' AFTER supplier;
ALTER TABLE equipments ADD COLUMN manufacturer VARCHAR(100) NULL COMMENT '제조사(메이커)' AFTER purchase_price;

-- equipment_code에 유니크 인덱스 추가
ALTER TABLE equipments ADD UNIQUE INDEX idx_equipment_code (equipment_code);