create_time時間戳格式
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
附
mysql 按時間段統計（年，季度，月，天，時）
按年匯總，統計：
select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, '%Y');
按月匯總，統計：
select sum(mymoney) as totalmoney, count(*) as sheets from mytable group by date_format(col, '%Y-%m');
按季度匯總，統計：
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, '%Y'),FLOOR((date_format(col, '%m')+2)/3));
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by concat(date_format(col, '%Y'),FLOOR((date_format(col, '%m')+2)/3));
按小時：
select sum(mymoney) as totalmoney,count(*) as sheets from mytable group by date_format(col, '%Y-%m-%d %H ');
查詢 本年度的數據:
SELECT * FROM mytable WHERE year(FROM_UNIXTIME(my_time)) = year(curdate())
查詢數據附帶季度數:
SELECT id, quarter(FROM_UNIXTIME(my_time)) FROM mytable;
查詢 本季度的數據:
SELECT * FROM mytable WHERE quarter(FROM_UNIXTIME(my_time)) = quarter(curdate());
本月統計:
select * from mytable where month(my_time1) = month(curdate()) and year(my_time2) = year(curdate())
本周統計:
select * from mytable where month(my_time1) = month(curdate()) and week(my_time2) = week(curdate())
N天內記錄:
WHERE TO_DAYS(NOW())-TO_DAYS(時間字段)<=N