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_sql/migrate_device_status_data_simple.sql

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+-- Active: 1763990602551@@192.144.167.231@3306@autoaiworksys
+-- ============================================
+-- 数据迁移脚本（简化版）：将 device_status 表中的 device_id 迁移到 pla_account 表
+-- ============================================
+
+-- 查看 device_status 表的数据
+SELECT sn_code, device_id FROM device_status;
+
+-- 查看迁移前的 pla_account 数据
+SELECT id, sn_code, device_id, name FROM pla_account WHERE sn_code IN (SELECT sn_code FROM device_status);
+
+-- 执行迁移：根据 sn_code 匹配，将 device_status.device_id 更新到 pla_account.device_id
+UPDATE pla_account pa
+INNER JOIN device_status ds ON pa.sn_code = ds.sn_code
+SET pa.device_id = ds.device_id
+WHERE ds.device_id IS NOT NULL 
+  AND ds.device_id != ''
+  AND (pa.device_id IS NULL OR pa.device_id = '');
+
+-- 查看迁移后的结果
+SELECT id, sn_code, device_id, name, 
+       CASE WHEN device_id IS NOT NULL AND device_id != '' THEN '已迁移' ELSE '未迁移' END AS status
+FROM pla_account 
+WHERE sn_code IN (SELECT sn_code FROM device_status);
+