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...
(This does not occur for other types such as DATETIME.) By default, the current time zone for each connection is the server’s time. (默认情况下,每个连接的当前时区是服务器时间。 The time zone can be set on a per-connection basis. As long as the time zone setting remains constant, you...
(This does not occur for other types such as DATETIME.) By default, the current time zone for each connection is the server’s time. (默认情况下,每个连接的当前时区是服务器时间。 The time zone can be set on a per-connection basis. As long as the time zone setting remains constant, you...
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
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 default, the current time zone for each connection is the server’s time. (默认情况下,每个连接的当前时区是服务器时间。
而 DATETIME 和 DATE 类型没有此类限制。Laravel 处理日期和时间Laravel 使用 Carbon 库生成日期，Carbon 库又使用 PHP 的日期/时间函数。生成当前日期时，会根据 PHP 的时区进行操作。PHP 的时区由 config/app.php 中的 timezone 设置决定。在数据库中存储日期时考虑的潜在影响将通过示例进行说明。考虑...
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...
DATETIME is an 8-byte string of digits "yyyymmddhhmmss". It is more like recording what the clock says, not what time it is in some global sense. That's two ways of dealing with time. There are actually something like 5. You are on your own if the above two flavors of date+time...
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。
DateTime utcDT =newDateTime().withZone(DateTimeZone.UTC).toLocalDateTime().toDateTime(); ... ... ... UserDto dto=newUserDto(); dto.setCreated(utcDT.toDate()); userMapping.insertRecords(dto); 除了上面的方法外,还可以在驱动器的连接URL上加参数,如下: ...