/*查詢2小時前的數據*/
select * from tableName WHERE
create_time < DATE_SUB(NOW(), INTERVAL 2 HOUR)
SELECT
count(id)
FROM
rd_track_info
WHERE
DATE(create_time) < DATE_SUB(CURDATE(), INTERVAL 7 DAY);
SELECT
count(id)
FROM
rd_track_info
WHERE
DATE(create_time) = DATE_SUB(CURDATE(), INTERVAL 7 DAY);
SELECT
count(id)
FROM
rd_track_info
WHERE
DATE(create_time) > DATE_SUB(CURDATE(), INTERVAL 7 DAY);
/*按天統計*/
SELECT
count(id) countNum, DATE(create_time) createTime FROM rd_track_info GROUP BY DATE(create_time) ORDER BY DATE(create_time) DESC; /*按周統計*/
SELECT
count(id) countNum, WEEK(create_time) createTime FROM rd_track_info GROUP BY WEEK(create_time) ORDER BY WEEK(create_time) DESC; /*按月統計*/
SELECT
count(id) countNum, MONTH(create_time) createTime FROM rd_track_info GROUP BY
MONTH(create_time) ORDER BY
MONTH(create_time) DESC; /*按季度統計*/
SELECT
count(id) countNum, QUARTER(create_time) createTime FROM rd_track_info GROUP BY QUARTER(create_time) ORDER BY QUARTER(create_time) DESC; /*按年統計*/
SELECT
count(id) countNum, YEAR(create_time) createTime FROM rd_track_info GROUP BY
YEAR(create_time) ORDER BY
YEAR(create_time) DESC;