93 lines
3.4 KiB
MySQL
93 lines
3.4 KiB
MySQL
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-- ==========================================
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-- 第一部分：DDL - 表结构修改
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-- ==========================================
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-- 1. 工序路线主表 (pro_route) 扩展
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-- 新增字段：制造类型（制造类型直接决定时间计算模式）
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ALTER TABLE `pro_route`
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ADD COLUMN `manufacture_type` VARCHAR(20) DEFAULT 'DISCRETE'
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COMMENT '制造类型: DISCRETE=离散制造(顺序推进), CONTINUOUS=连续制造(同步开工)'
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AFTER `status`;
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-- 2. 工序路线明细表 (pro_route_process) 扩展
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-- 新增字段：转运时间（离散制造）和等待开始时间（连续制造）
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ALTER TABLE `pro_route_process`
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ADD COLUMN `transfer_time` BIGINT DEFAULT 0
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COMMENT '转运时间（秒），离散制造时从上一工序到本工序的转运耗时'
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AFTER `duration`,
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ADD COLUMN `wait_start_time` BIGINT DEFAULT 0
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COMMENT '等待开始时间（秒），连续制造时从生产起始时间的延迟'
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AFTER `transfer_time`;
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-- ==========================================
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-- 第二部分：DML - 数据迁移
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-- ==========================================
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-- 3. 为现有工序路线设置默认值（离散制造）
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UPDATE `pro_route`
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SET `manufacture_type` = 'DISCRETE'
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WHERE `manufacture_type` IS NULL;
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-- 4. 为现有工序明细设置默认转运时间和等待开始时间为0
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UPDATE `pro_route_process`
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SET `transfer_time` = 0,
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`wait_start_time` = 0
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WHERE `transfer_time` IS NULL
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OR `wait_start_time` IS NULL;
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-- ==========================================
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-- 第三部分：数据验证查询
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-- ==========================================
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-- 5. 验证工序路线表新增字段
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SELECT
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COUNT(*) AS total_routes,
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SUM(CASE WHEN manufacture_type = 'DISCRETE' THEN 1 ELSE 0 END) AS discrete_count,
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SUM(CASE WHEN manufacture_type = 'CONTINUOUS' THEN 1 ELSE 0 END) AS continuous_count
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FROM `pro_route`;
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-- 6. 验证工序明细表新增字段
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SELECT
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COUNT(*) AS total_processes,
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SUM(CASE WHEN transfer_time = 0 THEN 1 ELSE 0 END) AS zero_transfer_time,
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SUM(CASE WHEN transfer_time > 0 THEN 1 ELSE 0 END) AS has_transfer_time,
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SUM(CASE WHEN wait_start_time = 0 THEN 1 ELSE 0 END) AS zero_wait_time,
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SUM(CASE WHEN wait_start_time > 0 THEN 1 ELSE 0 END) AS has_wait_time,
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AVG(transfer_time) AS avg_transfer_time,
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MAX(transfer_time) AS max_transfer_time,
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AVG(wait_start_time) AS avg_wait_time,
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MAX(wait_start_time) AS max_wait_time
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FROM `pro_route_process`;
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-- 7. 查看表结构变化（可选）
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-- SHOW FULL COLUMNS FROM `pro_route`;
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-- SHOW FULL COLUMNS FROM `pro_route_process`;
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-- ==========================================
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-- 第四部分：回滚脚本（如需要）
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-- ==========================================
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/*
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-- 警告：此部分仅用于回滚，会删除新增的字段和数据
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-- 请谨慎执行！
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-- 回滚工序路线主表
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ALTER TABLE `pro_route`
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DROP COLUMN `manufacture_type`;
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-- 回滚工序明细表
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ALTER TABLE `pro_route_process`
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DROP COLUMN `transfer_time`,
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DROP COLUMN `wait_start_time`;
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*/
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-- ==========================================
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-- 执行说明
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-- ==========================================
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-- 1. 建议在测试环境先执行验证
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-- 2. 生产环境执行前务必备份数据库
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-- 3. 分步执行，每步验证无误后再继续
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-- 4. 执行第三部分（验证查询）确认数据正确性
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-- 5. 如需回滚，使用第五部分的回滚脚本
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-- ==========================================
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