/*查詢2小時前的資料*/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;