The `TIMESTAMPDIFF()` function in MySQL calculates the difference between two date or datetime expressions. It returns the result in the specified unit, such as seconds, minutes, hours, days, or years. Usage The function is used to determine the time interval between two dates in a chosen ...
1 row in set 如果您希望看到差值,只需要将unit参数从MONTH更改为DAY,如下所示: mysql> SELECT TIMESTAMPDIFF(DAY, ‘2010-01-01’, ‘2010-06-01’) result; +——–+ | result | +——–+ | 151 | +——–+ 1 row in set 以下语句返回两个DATETIME值(以分钟为单位)的差异值: mysql> SELECT ...
1、FUNCTION df_school.sum does not exist. Check the ‘Function Name Parsing and Resolution’ section in the Reference Manual 解决方案:sum() count() avg()这些函数英文和()要挨着写,不能有空格,否则报错。 2、MySQL的时间差函数TIMESTAMPDIFF、DATEDIFF的区别 TIMESTAMPDIFF函数:有参数设置,可以精确到年...
>http://www.sourcehints.com Thanks for the feedback, so that's the only way to do it? I can't use something like the date format function and specify what way I want it displayed? Sorry, you can't reply to this topic. It has been closed....
Frequently Asked Questions (FAQ) - MySQL TIMESTAMPDIFF() Function 1.What is the MySQL TIMESTAMPDIFF() function used for? The TIMESTAMPDIFF() function in MySQL calculates the difference between two datetime or date values, returning the result in specified units such as seconds, minutes, hours...
官网:https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html#function_timestampdiff TIMESTAMP(expr),TIMESTAMP(expr1,expr2) With a single argument, this function returns the date or datetime expressionexpras a datetime value. With two arguments, it adds the time expressionexpr2...
在MySQL应用时,经常要使用这两个函数TIMESTAMPDIFF和TIMESTAMPADD。 一,TIMESTAMPDIFF 语法: TIMESTAMPDIFF(interval,datetime_expr1,datetime_expr2)。 说明: 返回日期或日期时间表达式datetime_expr1 和datetime_expr2the 之间的整数差。其结果的单位由interval 参数给出。该参数必须是以下值的其中一个: ...
MySQL in a Nutshell by Russell J. T. Dyer Name TIMESTAMPDIFF( ) Synopsis TIMESTAMPDIFF(interval, datetime, datetime) This function returns the time difference between the two times given but only for the interval being compared. The intervals accepted are the same as those for the TIMESTAMP...
TIMESTAMPDIFF is a JDBC escaped function, and is only accessible using the JDBC escape function syntax. The syntax you need is: select {fn timestampdiff(SQL_TSI_WEEK, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)} from demo.field; TIMESTAMPDIFF( interval, timestampExpression1, timestampExpression2 )...
SELECT TIMESTAMPADD(SECOND,50,'2009-12-01 09:00:00'); 5、FIELD可以用来对SQL中查询结果集进行指定顺序排序 order by (str,str1,str2,str3,str4……),str与str1,str2,str3,str4比较,其中str指的是字段名字,如果表中str字段值不存在于str1,str2,str3,str4中的记录,放在结果集最前面返回。