时间段查询语句：

今天

    select fullName,addedTime from t_user where to_days(addedTime) <= to_days(now()); 

– 昨天

    select fullName,addedTime from t_user where to_days(NOW()) - TO_DAYS(addedTime) <= 1;  

– 近7天

    select fullName,addedTime from t_user where date_sub(CURDATE(),INTERVAL 7 DAY) <= DATE(addedTime);  

– 近30天

    SELECT fullName,addedTime FROM t_user where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(addedTime);

– 本月

    SELECT fullName,addedTime FROM t_user WHERE DATE_FORMAT( addedTime, '%Y%m' ) = DATE_FORMAT( CURDATE() , '%Y%m' );

– 上一月

    SELECT fullName,addedTime FROM t_user WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( addedTime, '%Y%m' ) ) =1; 

– 查询本季度数据

    select fullName,addedTime FROM t_user where QUARTER(addedTime)=QUARTER(now()); 

– 查询上季度数据

    select fullName,addedTime FROM t_user where QUARTER(addedTime)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));  

– 查询本年数据

	select fullName,addedTime FROM t_user where YEAR(addedTime)=YEAR(NOW());  

– 查询上年数据

    select fullName,addedTime FROM t_user where year(addedTime)=year(date_sub(now(),interval 1 year));

– 查询距离当前现在6个月的数据

	select fullName,addedTime FROM t_user where addedTime between date_sub(now(),interval 6 month) and now();  

– 查询当前这周的数据

    SELECT fullName,addedTime FROM t_user WHERE YEARWEEK(date_format(addedTime,'%Y-%m-%d')) = YEARWEEK(now());  

– 查询上周的数据

    SELECT fullName,addedTime FROM t_user WHERE YEARWEEK(date_format(addedTime,'%Y-%m-%d')) = YEARWEEK(now())-1;  

– 查询上个月的数据

    select fullName,addedTime FROM t_user where date_format(addedTime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m'); 

– 查询当前月份的数据

    select fullName,addedTime FROM t_user where DATE_FORMAT(addedTime,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m');
    select fullName,addedTime FROM t_user where date_format(addedTime,'%Y-%m')=date_format(now(),'%Y-%m'); 

– 查询指定时间段的数据

    select fullName,addedTime FROM t_user where addedTime between  '2017-1-1 00:00:00'  and '2018-1-1 00:00:00';   
    select fullName,addedTime FROM t_user where addedTime >='2017-1-1 00:00:00'  and addedTime < '2018-1-1 00:00:00';