使用DATE_FORMAT方法
SELECT * FROM `ler_items` WHERE DATE_FORMAT(postTime,\'%Y-%m\')=\'2013-03\'
注意：日期一定要用\'\'，否则没有效果
其它的一些关于mysql日期查找语句
mysql> select date_format(DATE_SUB(CURDATE(), INTERVAL 7 DAY),\'%y%m%d\');
+———————————————————–+
| date_format(DATE_SUB(CURDATE(), INTERVAL 7 DAY),\'%y%m%d\') |
+———————————————————–+
| 120416 |
+———————————————————–+
1 row in set (0.00 sec)

可以获取7天前的日期，
使用DATE_SUB(CURDATE(), INTERVAL 7 DAY） 来获得7天前的时间，用date_format 来指定输出格式。

今天
select * from 表名 where to_days(时间字段名) = to_days(now());
昨天
SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) – TO_DAYS( 时间字段名) <= 1
7天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)
近30天
SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)
本月
SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, ‘%Y%m\' ) = DATE_FORMAT( CURDATE( ) , ‘%Y%m\' )
上一月
SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , ‘%Y%m\' ) , date_format( 时间字段名, ‘%Y%m\' ) ) =1
#查询本季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());
#查询上季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));
#查询本年数据
select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());
#查询上年数据
select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year));

查询当前这周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,\'%Y-%m-%d\')) = YEARWEEK(now());
查询上周的数据
SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,\'%Y-%m-%d\')) = YEARWEEK(now())-1;
查询当前月份的数据
select name,submittime from enterprise where date_format(submittime,\'%Y-%m\')=date_format(now(),\'%Y-%m\')
查询距离当前现在6个月的数据
select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();
查询上个月的数据
select name,submittime from enterprise where date_format(submittime,\'%Y-%m\')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),\'%Y-%m\')
select * from ` user ` where DATE_FORMAT(pudate, ‘ %Y%m ‘ ) = DATE_FORMAT(CURDATE(), ‘ %Y%m ‘ ) ;
select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,\'%y-%m-%d\')) = WEEKOFYEAR(now())
select *
from user
where MONTH (FROM_UNIXTIME(pudate, ‘ %y-%m-%d ‘ )) = MONTH (now())
select *
from [ user ]
where YEAR (FROM_UNIXTIME(pudate, ‘ %y-%m-%d ‘ )) = YEAR (now())
and MONTH (FROM_UNIXTIME(pudate, ‘ %y-%m-%d ‘ )) = MONTH (now())
select *
from [ user ]
where pudate between 上月最后一天
and 下月第一天
where date(regdate) = curdate();
select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now())
SELECT date( c_instime ) ,curdate( )
FROM `t_score`
WHERE 1
LIMIT 0 , 30