delete 订单表 where datediff( dd, order_addtime, getdate() ) > 3 用函数datediff() datediff( dd, 时间1, 时间2 ),意思是:计算时间1到时间2之间的天数 所以,datediff( dd, order_addtime, getdate() ) > 3,就是超过3天的 今天 select * from 表名 where to_days(时间字段名) = to_days(now...
- DATE_ADD(DATE, INTERVAL EXPR UNIT) 含义:相同于 **ADDDATE** 函数 - SUBDATE(EXPR, DAYS) 含义:向日期减去指定的天数,与 **ADDDATE** 反义 示例: ``` SELECT SUBDATE('2016-01-01', 1); ``` 在**2016-01-01** 日期中减去 **1** 天,计算结果: > 2015-12-31 - SUBDATE(DATE, INTE...
'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m') select * from user w...
select * from 表名 where to_days(时间字段名) = to_days(now()); to_days函数:返回从0000年(公元1年)至当前日期的总天数。 2、昨天 SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) – TO_DAYS( 时间字段名) <= 1 3.7天 SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <=...
1.2 获得当前日期+时间(date + time)函数:sysdate() sysdate() 日期时间函数跟 now() 类似,不同之处在于:now() 在执行开始时值就得到了, sysdate() 在函数执行时动态得到值。看下面的例子就明白了: mysql> select now(), sleep(3), now();
YEARWEEK() Return the year and week Here is an example that uses date functions. The following query selects all rows with a date_col value from within the last 30 days: mysql> SELECT something FROM tbl_name -> WHERE DATE_SUB(CURDATE(),INTERVAL 30 DAY) <= date_col; ...
You can use this in your MySQL WHERE clause to return records that were created within the last 7 days/week: created >= DATE_SUB(CURDATE(),INTERVAL 7 day) Also use NOW() in the subtraction to give hh:mm:ss resolution. So to return records created exactly (to the second) within the...
Exceeds on <Date>: You're likely to exceed the limit for the meter on <Date>. Important With an Azure free account, you also get $200 in credit to use in 30 days. During this time, any usage beyond the free monthly amounts of services will be deducted from this credit. At the en...
>$DumpFile/bin/tar -zvcf $GZDumpFile $DumpFile/bin/rm $DumpFileoldDate=`date -d '7 days ago' +%Y%m%d`oldBakFile=${oldDate}'.sql.tgz'/bin/rm $oldBakFileLast=`date +'%Y年%m月%d日 %H:%M:%S'`echo 开始:$Begin结束:$Last$GZDumpFile succ >> $LogFilecd $BakDir/daily /bin/rm...
Date: October 24, 2012 09:13AM Thank you, but I am such a newbie that in my class we have not yet learned how to write the code you have suggested. We are learning Date_sub, Date_add, DateDiff, Extract, Interval, etc. How do you find the number of customers who had at least ...