| --- |
| { |
| "title": "EXTRACT", |
| "language": "en" |
| } |
| --- |
| |
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| |
| ## extract |
| ### description |
| #### Syntax |
| |
| `INT extract(unit FROM DATETIME)` |
| |
| Extract DATETIME The value of a specified unit. The unit can be year, day, hour, minute, second or microsecond |
| |
| ### Example |
| |
| ``` |
| mysql> select extract(year from '2022-09-22 17:01:30') as year, |
| -> extract(month from '2022-09-22 17:01:30') as month, |
| -> extract(day from '2022-09-22 17:01:30') as day, |
| -> extract(hour from '2022-09-22 17:01:30') as hour, |
| -> extract(minute from '2022-09-22 17:01:30') as minute, |
| -> extract(second from '2022-09-22 17:01:30') as second, |
| -> extract(microsecond from cast('2022-09-22 17:01:30.000123' as datetimev2(6))) as microsecond; |
| +------+-------+------+------+--------+--------+-------------+ |
| | year | month | day | hour | minute | second | microsecond | |
| +------+-------+------+------+--------+--------+-------------+ |
| | 2022 | 9 | 22 | 17 | 1 | 30 | 123 | |
| +------+-------+------+------+--------+--------+-------------+ |
| ``` |
| |
| ### keywords |
| |
| extract |