id INT, name VARCHAR(50), create_time DATETIME ); 1. 2. 3. 4. 5. 6. 2. 设置数据类型为时间类型 #将`create_time`列的数据类型修改为`TIME`ALTER TABLE users MODIFY create_time TIME; 1. 2. 结尾 通过以上步骤,你就可以成功将MySQL数据表的data type设置为时间类型了。希望对你有所帮助,如果...
TIMESTAMP与DATETIME select显示都是字符串时间值yyyy-mm-dd HH:MM:SS 2. TIMESTAMP range is'1970-01-01 00:00:01.000000'UTC to'2038-01-19 03:14:07.999999'UTC,入库时将时间转换为时间戳存储,查询时再转为带时区的时间;DATETIME range is'1000-01-01'to'9999-12-31' 3. Ifexplicit_defaults_for_...
6.日期时间类型 若定义一个字段为timestamp,这个字段里的时间数据会随其他字段修改的时候自动刷新,所以这个数据类型的字段可以存放这条记录最后被修改的时间。 数据类型的属性
get_format函数用法: get_format(date|time|datetime, 'eur'|'usa'|'jis'|'iso'|'internal' ); 如获取USA的默认时间格式 select get_format(date,'usa') as usa_date_format, get_format(time,'usa') as usa_time_format, get_format(datetime,'usa') as usa_datetime_format; +---+---+---+ ...
日期和时间类型主要包括DATE, TIME, DATETIME, TIMESTAMP和YEAR,可以赋值0表示无效值。 注意事项 读取日期时间类型时,以标准格式输出;但是为日期时间类型赋值,或者与其比较时,MySQL尝试以多种格式解析给定的值;但是,日期部分必须符合格式year-month-day 日期与时间类型互转的规则: ...
11.3 Date and Time Types 5.1.11 Server SQL Modes 9.1.3 Date and Time Literals Year 2038 problem Should I use the datetime or timestamp data type in MySQL? MySQL Datetime vs Timestamp column types – which one I should use? ss
Supported MySQL date-time data types The MySQL TIMESTAMP is the only data type designed to store instant points on the time-line using the implied time zone conversion. Incoming values are converted by server from the session time zone to UTC for storage, and outgoing values are converted from...
Date and Time Type (日期和时间类型) DATE、TIME、DATETIME、TIMESTAMP、YEAR默认格式为: DATE: 1000-01-01 ~ 9999-12-31 TIME: 00:00:01 ~ 23:59:59 DATETIME: 1000-01-01 00:00:00 ~ 9999-12-31 59:59:59 TIMESTAMP: 1970-00-01 00:00:00 ~ 2038-01-19 03:14:07 ...
The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of '1970-01-01 00:00:01' UTC to '2038-01-19 03:14:07' UTC. TIMESTAMP 同样也支持【日期】和【时间】,但由于带上了时间戳的语义,就不如 DATETIME 支持的范围那么宽了。UTC 时间,从...
MySQL permits fractional seconds forTIME,DATETIME, andTIMESTAMPvalues, with up to microseconds (6 digits) precision. To define a column that includes a fractional seconds part, use the syntaxtype_name(fsp), wheretype_nameisTIME,DATETIME, orTIMESTAMP, andfspis the fractional seconds precision. Fo...