| 指标 | 非空率 / 基数 / 分布 |
|---|---|
| 位置 | 数据字典属性页 |
| 刷新 | 随批次或周期更新 |
属性画像
属性画像
SELECT
count(1) AS rows_all,
count(city) AS rows_city,
count(DISTINCT city) AS city_cardinality,
sum(CASE WHEN city = 'UNKNOWN' THEN 1 ELSE 0 END) AS city_unknown
FROM dim_customer WHERE is_current = 1;画像与认证等级联动：非空率跌破阈值时自动降级提醒。