datetime_val字段用于存储日期和时间。 timezone_val字段用于存储时区信息。 插入数据 INSERTINTOtimezones(datetime_val,timezone_val)VALUES('2022-01-01 12:00:00','UTC'),('2022-01-01 12:00:00','Asia/Shanghai'),('2022-01-01 12:00:00','America/New_York'); 1. 2. 3. 4. INSERT INTO语...
any fractional part in a value inserted into a DATETIME or TIMESTAMP column is stored rather than discarded. With the fractional part included, the format for these values
TIMESTAMP和DATETIME都可以设置自动插入时间与更新时间; 使用频率最高的是DATETIME和TIMESTAMP。 1.2 自动更新 TIMESTAMP和DATETIME可以设置自动初始化与更新: 代码语言:sql AI代码解释 CREATETABLEt1(idint,tsTIMESTAMPDEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIMESTAMP,dtDATETIMEDEFAULTCURRENT_TIMESTAMPONUPDATECURRENT_TIM...
MySQL convertsTIMESTAMPvalues from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such asDATETIME.) By default, the current time zone for each connection is the server's time. The time zone can b...
set time_zone='America/Chicago'; insert into t5(id,dt1,dt2) values(3,date_add('2022-03-13 01:30:00',INTERVAL 40 MINUTE), date_add('2022-03-13 01:30:00',INTERVAL 40 MINUTE)); ERROR 1292 (22007): Incorrect datetime value: '2022-03-13 02:10:00' for column 'dt2' at row 1 ...
MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone forretrieval. MySQL 会将 TIMESTAMP 值从当前时区转换到 UTC 以进行存储,并在检索时从 UTC 转换回当前时区。 (This does not occur for other types such as DATETIME.) By ...
datetime 1.8个字节储存(8 bytes storage) 2.实际格式储存(Just stores what you have stored and retrieves the same thing which you have stored.) 3.与时区无关(It has nothing to deal with the TIMEZONE and Conversion.) 实例对比 现在我来做个时区对他们的影响。
MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. MySQL 会将 TIMESTAMP 值从当前时区转换到 UTC 以进行存储,并在检索时从 UTC 转换回当前时区。 (This does not occur for other types such as DATETIME.) By...
如果mysql的time_zone变量是SYSTEM,而system_time_zone是CST的值,system_time_zone的CST这个字符串会造成bug。mysql jdbc mysql的jdbc驱动的代码里会设置时区,这个时区是通过 TimeZone.getTimeZone(canonicalTimezone) 读取,其中 canonicalTimezone 是字符串, TimeZone.getTimeZone("CST") 返回-6时区,即美国的时区。
June 29, 2009 10:36AM Re: Storing timezone with datetime Rick James June 30, 2009 12:15AM Re: Storing timezone with datetime James Birchall July 23, 2009 11:42AM Sorry, you can't reply to this topic. It has been closed.