diff --git a/docs/db/increment-org-equipment-industry-code-20260715.sql b/docs/db/increment-org-equipment-industry-code-20260715.sql
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+-- =============================================
+-- 2026-07-15 表字段变更增量脚本
+-- 执行: mysql -u<user> -p<db> < increment-org-equipment-industry-code-20260715.sql
+-- =============================================
+
+SET NAMES utf8mb4;
+
+-- =============================================
+-- org_equipment 表
+-- =============================================
+
+-- 1. instrument_type_code → industry_code 行业code
+ALTER TABLE `org_equipment` CHANGE COLUMN `instrument_type_code` `industry_code` varchar(32) DEFAULT NULL COMMENT '行业code';
+
+-- =============================================
+-- org_business_scope_device_ref 表
+-- =============================================
+
+-- 2. device_code → device_type_code 设备类型code
+ALTER TABLE `org_business_scope_device_ref` CHANGE COLUMN `device_code` `device_type_code` varchar(32) DEFAULT NULL COMMENT '设备类型code';
+
+-- 3. device_name → device_type_name 设备类型名称
+ALTER TABLE `org_business_scope_device_ref` CHANGE COLUMN `device_name` `device_type_name` varchar(200) DEFAULT NULL COMMENT '设备类型名称';