20 lines
672 B
SQL
20 lines
672 B
SQL
-- ============================================================
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-- 为 md_bom 表添加 item_spec 字段
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-- 说明: 修复字段缺失问题，item_spec作为冗余字段存储产品物料规格
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-- 生成日期: 2026-01-26
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-- 兼容 MySQL 5.7+
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-- ============================================================
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SET NAMES utf8mb4;
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-- 添加 item_spec 字段
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ALTER TABLE `md_bom`
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ADD COLUMN `item_spec` varchar(200) DEFAULT NULL COMMENT '产品物料规格 (冗余字段)'
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AFTER `item_name`;
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-- 更新现有数据：从md_item表同步item_spec
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UPDATE `md_bom` b
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INNER JOIN `md_item` i ON b.item_id = i.item_id
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SET b.item_spec = i.specification
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WHERE b.item_spec IS NULL;
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