完善小细节

tradeCattle/check_all_fields_length.sql

@@ -0,0 +1,72 @@
+-- 检查所有项圈设备的所有字段长度
+-- 找出真正导致Data truncation的字段
+
+-- 1. 检查所有字段的长度
+SELECT 
+    device_id,
+    latitude,
+    longitude,
+    voltage,
+    temperature,
+    steps,
+    same_day_steps,
+    LENGTH(CAST(latitude AS CHAR)) as lat_length,
+    LENGTH(CAST(longitude AS CHAR)) as lng_length,
+    LENGTH(CAST(voltage AS CHAR)) as voltage_length,
+    LENGTH(CAST(temperature AS CHAR)) as temp_length,
+    LENGTH(CAST(steps AS CHAR)) as steps_length,
+    LENGTH(CAST(same_day_steps AS CHAR)) as same_day_steps_length
+FROM iot_device_data 
+WHERE device_type = 4 
+ORDER BY LENGTH(CAST(latitude AS CHAR)) DESC
+LIMIT 10;
+
+-- 2. 检查是否有超长字段
+SELECT 
+    'latitude' as field_name,
+    MAX(LENGTH(CAST(latitude AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4
+UNION ALL
+SELECT 
+    'longitude' as field_name,
+    MAX(LENGTH(CAST(longitude AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4
+UNION ALL
+SELECT 
+    'voltage' as field_name,
+    MAX(LENGTH(CAST(voltage AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4
+UNION ALL
+SELECT 
+    'temperature' as field_name,
+    MAX(LENGTH(CAST(temperature AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4
+UNION ALL
+SELECT 
+    'steps' as field_name,
+    MAX(LENGTH(CAST(steps AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4
+UNION ALL
+SELECT 
+    'same_day_steps' as field_name,
+    MAX(LENGTH(CAST(same_day_steps AS CHAR))) as max_length
+FROM iot_device_data 
+WHERE device_type = 4;
+
+-- 3. 检查xq_client_log表的字段长度限制
+SELECT 
+    COLUMN_NAME,
+    DATA_TYPE,
+    CHARACTER_MAXIMUM_LENGTH,
+    NUMERIC_PRECISION,
+    NUMERIC_SCALE
+FROM INFORMATION_SCHEMA.COLUMNS 
+WHERE TABLE_SCHEMA = DATABASE() 
+AND TABLE_NAME = 'xq_client_log'
+AND COLUMN_NAME IN ('latitude', 'longitude', 'device_voltage', 'device_temp', 'walk_steps', 'y_walk_steps')
+ORDER BY ORDINAL_POSITION;