In MariaDB, PERIOD_DIFF() is a built-in date and time function that returns the number of months between two periods.
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How PERIOD_ADD() Works in MariaDB
In MariaDB, PERIOD_ADD() is a built-in date and time function that adds a given number of months to a period in time.
The return value is in the format YYYYMM.
How MAKETIME() Works in MariaDB
In MariaDB, MAKETIME() is a built-in date and time function that returns a time value, based on the hours, minutes, and seconds provided as arguments.
How MAKEDATE() Works in MariaDB
In MariaDB, MAKEDATE() is a built-in date and time function that returns a date, based on the year and day of year provided as arguments.
How GET_FORMAT() Works in MariaDB
In MariaDB, GET_FORMAT() is a built-in date and time function that returns a format string.
This function can be useful for when working with functions that require a format string, such as DATE_FORMAT() and STR_TO_DATE().
How FROM_UNIXTIME() Works in MariaDB
In MariaDB, FROM_UNIXTIME() is a built-in date and time function that returns a datetime value based on a given unix timestamp.
You pass the unix timestamp to the function when you call it.
The result is returned in 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS.uuuuuu format, depending on whether the function is used in a string or numeric context.
The value is expressed in the current time zone.
How TO_DAYS() Works in MariaDB
In MariaDB, TO_DAYS() is a built-in date and time function that returns the number of days from the start of the standard calendar (0000-00-00), based on a given date.
You pass the date to the function when you call it.
The TO_DAYS() function is the converse of the FROM_DAYS() function.
How FROM_DAYS() Works in MariaDB
In MariaDB, FROM_DAYS() is a built-in date and time function that returns a date value based on a given number of days from the start of the standard calendar (0000-00-00).
You pass the number of days to the function when you call it.
The FROM_DAYS() function is the converse of the TO_DAYS() function.
How LAST_DAY() Works in MariaDB
In MariaDB, LAST_DAY() is a built-in date and time function that returns the last day of the month for a given date.
It accepts one argument, which is the date for which you want to find the last day of the month.
How QUARTER() Works in MariaDB
In MariaDB, QUARTER() is a built-in date and time function that returns the quarter from a given date expression.
It accepts one argument, which is the date you want to extract the quarter from.
It returns the quarter as a number in the range 1 to 4. For dates with zero months (e.g. 0000-00-00 or 2025-00-00), the result is 0.