This section describes the functions that can be used to manipulate temporal values. See Section 13.2, “Date and Time Data Types”, for a description of the range of values each date and time type has and the
Table 12.11 Date and Time Functions NameDescription ADDDATE() Add time values (intervals) to a date value ADDTIME() Add time CONVERT_TZ() Convert from one time zone to another CURDATE() Return the current date CURRENT_DATE(), CURRENT_DATE Synonyms for CURDATE() CURRENT_TIME(), ...
SELECTDATE_FORMAT('2006-06-00','%d'); GET_FORMAT({DATE|TIME|DATETIME}, {'EUR'|'USA'|'JIS'|'ISO'|'INTERNAL'}) Returns a format string. This function is useful in combination with theDATE_FORMAT()and theSTR_TO_DATE()functions. The possible values for the first and second arguments ...
DATE:日期,格式为YYYY-MM-DD,例如2022-01-01。 TIME:时间,格式为HH:MM:SS,例如10:30:00。 DATETIME:日期和时间,格式为YYYY-MM-DD HH:MM:SS,例如2022-01-01 10:30:00。 TIMESTAMP:时间戳,格式为YYYY-MM-DD HH:MM:SS,与 DATETIME 格式相同。 在MySQL 中,可以使用以上时间格式来存储和比较时间。 时间...
https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format 里面有1个%f,但是是6位的,如果毫秒只需要3位,再套一层substring,效果如下: 上图也顺便给了另1个小技巧:默认情况下now()和current_timestamp()函数,只精确到秒,如果需要到毫秒,传入3或6这样的精度值即可。
Description:Date and time functions are inconsistently named. It makes it difficult to recall what the function name should be without looking up the manual every time. For example, this is one flavor of naming convention (verb in front): ADDDATE() ADDTIME() SUBDATE() SUBTIME() Here is an...
希望本文能够帮助您理解MySQL中datetime时间相减的方法,并为您的实际应用带来便利。 流程图 开始定义datetime_expr1和datetime_expr2计算时间差值返回时间差值结束 状态图 计算时间差值 参考链接 [MySQL Date and Time Functions]( [MySQL TIMESTAMPDIFF() Function](...
官方文档:Date and Time Functions 注: 接收date参数的函数在收到datetime时,会忽略掉time部分;接收time参数的函数在收到datetime时,也会忽略掉date部分。 在一次查询中,如果多次用到查询当前时间的函数,如NOW()/CURDATE()等,则其返回结果是一样的。同样适用于: CURDATE(), CURTIME(), UTC_DATE(), UTC_TIME...
Date and Time Functions Posted by:mikal mcdonough Date: November 24, 2010 12:29PM Hi, I'd appreciate some guidance if possible, fairly straightforward for someone well versed in (my)sql I'm sure, but a bit tricky for me. Ultimately I need to create a trigger to perform the following,...
DAYOFMONTH(date)DAYOFWEEK(date)DAYOFYEAR(date) "https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_extract">EXTRACT(unitFROMdate) mysql>SELECTEXTRACT(YEARFROM'2019-07-02');->2019mysql>SELECTEXTRACT(YEAR_MONTHFROM'2019-07-02 01:02:03');->201907mysql>SELECTEXTRACT...