Year, month, week, day sql statistics

/ * 2 hours before the query data * / 
SELECT * from the WHERE tableName 
        the create_time <for DATE_SUB (the NOW (), the INTERVAL HOUR 2)

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);

 

 

/ * * Statistics by day /

SELECT
    count(id) countNum,
    DATE(create_time) createTime
FROM
    rd_track_info
GROUP BY
    DATE(create_time)
ORDER BY
    DATE(create_time) DESC;


/*按周统计*/
SELECT
    count(id) countNum,
    WEEK(create_time) createTime
FROM
    rd_track_info
GROUP BY
    WEEK(create_time)
ORDER BY
    WEEK(create_time) DESC;


/*按月统计*/
SELECT
    count(id) countNum,
    MONTH(create_time) createTime
FROM
    rd_track_info
GROUP BY
    MONTH(create_time)
ORDER BY
    MONTH(create_time) DESC;


/*按季度统计*/
SELECT
    count(id) countNum,
    QUARTER(create_time) createTime
FROM
    rd_track_info
GROUP BY
    QUARTER(create_time)
ORDER BY
    QUARTER(create_time) DESC;

/*按年统计*/
SELECT
    count(id) countNum,
    YEAR(create_time) createTime
FROM
    rd_track_info
GROUP BY
    YEAR(create_time)
ORDER BY
    YEAR(create_time) DESC;

create_time a time format (field according to their create_time Field modification, the database is stored 201,610,071,202)

SELECT DATE_FORMAT(create_time,'%Y%u') weeks,COUNT(id) COUNT FROM role GROUP BY weeks;

SELECT DATE_FORMAT(create_time,'%Y%m%d') days,COUNT(id) COUNT FROM role GROUP BY days;

SELECT DATE_FORMAT(create_time,'%Y%m') months,COUNT(id) COUNT FROM role GROUP BY months;

create_time timestamp format (field according to their create_time Field modification, the database is stored 1474959640):

SELECT FROM_UNIXTIME(create_time,'%Y%u') weeks,COUNT(id) COUNT FROM role GROUP BY weeks;

SELECT FROM_UNIXTIME(create_time,'%Y%m%d') days,COUNT(id) COUNT FROM role GROUP BY days;

SELECT FROM_UNIXTIME(create_time,'%Y%m') months,COUNT(id) COUNT FROM role GROUP BY months;