??????????????????????0??????????????UV??????????????????????????????????????UV?????????????????????? CREATE VIEW uv_per_10min AS SELECT MAX(DATE_FORMAT(proctime , 'yyyy-MM-dd HH:mm:00')) OVER w AS time_str, COUNT(DISTINCT user_id) OVER w AS uv FROM user_behavior WINDOW w AS (ORDER BY proctime ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW);
?????????????????????????? PARTITION BY DATE_FORMAT(rowtm, 'yyyy-MM-dd') ?????????????????????????????????? PS??1.10??????????DDL??????????CREATE VIEW?? ????
