103 lines
3.0 KiB
MySQL
103 lines
3.0 KiB
MySQL
|
-- ====================================
|
|||
|
|
-- 步骤2：检查iot_device_data表中的实际数据
|
|||
|
|
-- ====================================
|
|||
|
|
|
|||
|
|
-- 2.1 检查项圈设备数据（device_type=4）
|
|||
|
|
SELECT
|
|||
|
|
device_id as '设备ID',
|
|||
|
|
device_type as '设备类型',
|
|||
|
|
voltage as '电压',
|
|||
|
|
temperature as '温度',
|
|||
|
|
steps as '步数',
|
|||
|
|
same_day_steps as '当日步数',
|
|||
|
|
latitude as '纬度',
|
|||
|
|
longitude as '经度',
|
|||
|
|
server_device_id as '主机设备ID',
|
|||
|
|
update_time as '更新时间'
|
|||
|
|
FROM iot_device_data
|
|||
|
|
WHERE device_type = 4
|
|||
|
|
ORDER BY update_time DESC
|
|||
|
|
LIMIT 10;
|
|||
|
|
|
|||
|
|
-- 2.2 检查耳标设备数据（device_type=2）
|
|||
|
|
SELECT
|
|||
|
|
device_id as '设备ID',
|
|||
|
|
device_type as '设备类型',
|
|||
|
|
voltage as '电压',
|
|||
|
|
temperature as '温度',
|
|||
|
|
steps as '步数',
|
|||
|
|
same_day_steps as '当日步数',
|
|||
|
|
latitude as '纬度',
|
|||
|
|
longitude as '经度',
|
|||
|
|
server_device_id as '主机设备ID',
|
|||
|
|
update_time as '更新时间'
|
|||
|
|
FROM iot_device_data
|
|||
|
|
WHERE device_type = 2
|
|||
|
|
ORDER BY update_time DESC
|
|||
|
|
LIMIT 10;
|
|||
|
|
|
|||
|
|
-- 2.3 检查主机设备数据（device_type=1）
|
|||
|
|
SELECT
|
|||
|
|
device_id as '设备ID',
|
|||
|
|
device_type as '设备类型',
|
|||
|
|
voltage as '电压',
|
|||
|
|
temperature as '温度',
|
|||
|
|
latitude as '纬度',
|
|||
|
|
longitude as '经度',
|
|||
|
|
update_time as '更新时间'
|
|||
|
|
FROM iot_device_data
|
|||
|
|
WHERE device_type = 1
|
|||
|
|
ORDER BY update_time DESC
|
|||
|
|
LIMIT 10;
|
|||
|
|
|
|||
|
|
-- 2.4 检查所有字段的最大长度
|
|||
|
|
SELECT
|
|||
|
|
'项圈设备' as '设备类型',
|
|||
|
|
'latitude' as '字段名',
|
|||
|
|
MAX(LENGTH(CAST(latitude AS CHAR))) as '最大长度',
|
|||
|
|
MAX(CHAR_LENGTH(CAST(latitude AS CHAR))) as '最大字符长度'
|
|||
|
|
FROM iot_device_data WHERE device_type = 4
|
|||
|
|
UNION ALL
|
|||
|
|
SELECT
|
|||
|
|
'项圈设备' as '设备类型',
|
|||
|
|
'longitude' as '字段名',
|
|||
|
|
MAX(LENGTH(CAST(longitude AS CHAR))) as '最大长度',
|
|||
|
|
MAX(CHAR_LENGTH(CAST(longitude AS CHAR))) as '最大字符长度'
|
|||
|
|
FROM iot_device_data WHERE device_type = 4
|
|||
|
|
UNION ALL
|
|||
|
|
SELECT
|
|||
|
|
'项圈设备' as '设备类型',
|
|||
|
|
'voltage' as '字段名',
|
|||
|
|
MAX(LENGTH(CAST(voltage AS CHAR))) as '最大长度',
|
|||
|
|
MAX(CHAR_LENGTH(CAST(voltage AS CHAR))) as '最大字符长度'
|
|||
|
|
FROM iot_device_data WHERE device_type = 4
|
|||
|
|
UNION ALL
|
|||
|
|
SELECT
|
|||
|
|
'项圈设备' as '设备类型',
|
|||
|
|
'temperature' as '字段名',
|
|||
|
|
MAX(LENGTH(CAST(temperature AS CHAR))) as '最大长度',
|
|||
|
|
MAX(CHAR_LENGTH(CAST(temperature AS CHAR))) as '最大字符长度'
|
|||
|
|
FROM iot_device_data WHERE device_type = 4
|
|||
|
|
UNION ALL
|
|||
|
|
SELECT
|
|||
|
|
'项圈设备' as '设备类型',
|
|||
|
|
'server_device_id' as '字段名',
|
|||
|
|
MAX(LENGTH(server_device_id)) as '最大长度',
|
|||
|
|
MAX(CHAR_LENGTH(server_device_id)) as '最大字符长度'
|
|||
|
|
FROM iot_device_data WHERE device_type = 4;
|
|||
|
|
|
|||
|
|
-- 2.5 检查设备数量
|
|||
|
|
SELECT
|
|||
|
|
device_type as '设备类型',
|
|||
|
|
CASE device_type
|
|||
|
|
WHEN 1 THEN '主机'
|
|||
|
|
WHEN 2 THEN '耳标'
|
|||
|
|
WHEN 4 THEN '项圈'
|
|||
|
|
ELSE '未知'
|
|||
|
|
END as '设备类型名称',
|
|||
|
|
COUNT(*) as '设备数量'
|
|||
|
|
FROM iot_device_data
|
|||
|
|
WHERE device_type IN (1, 2, 4)
|
|||
|
|
GROUP BY device_type;
|
|||
|
|
|