删除冗余

server/sql/1.9.20260420/UPDATE_OLD_DATA.sql

@@ -0,0 +1,18 @@
+-- 更新旧数据，为新字段设置默认值
+-- 这样可以确保所有记录都有完整的数据
+
+UPDATE `zyt_tcm_prescription` 
+SET 
+    `usage_days` = COALESCE(`usage_days`, 7),
+    `usage_time` = COALESCE(`usage_time`, '饭前'),
+    `usage_way` = COALESCE(`usage_way`, '温水送服'),
+    `dietary_taboo` = COALESCE(`dietary_taboo`, ''),
+    `usage_notes` = COALESCE(`usage_notes`, ''),
+    `is_shared` = COALESCE(`is_shared`, 0)
+WHERE `delete_time` IS NULL;
+
+-- 查看更新结果
+SELECT id, sn, prescription_name, usage_days, usage_time, usage_way, dietary_taboo, usage_notes, is_shared 
+FROM `zyt_tcm_prescription` 
+WHERE `delete_time` IS NULL
+LIMIT 5;