In MariaDB, MINUTE() is a built-in date and time function that returns the minutes portion of a given time expression.
It accepts one argument, which is the time you want to extract the minutes from.
The minutes are returned as a number in the range 0 to 59.
In MariaDB, HOUR() is a built-in date and time function that returns the hour from a given time expression.
It accepts one argument, which is the time you want to extract the hour from.
For time-of-day values, it returns the hour as a number in the range 0 to 23. However, the range of TIME values can be much larger, and therefore, the returned value can be much higher than 23.
The return value is always positive, even if a negative time is provided.
In MariaDB, EXTRACT() is a built-in date and time function that returns the specified unit from a given date or datetime expression.
In MariaDB, DAYOFYEAR() is a built-in date and time function that returns the day of the year from a given date.
It accepts one argument, which is the date you want to extract the day of the year from.
It returns the day as a number in the range 1 to 366.
In MariaDB, WEEKDAY() is a built-in date and time function that returns the week day from a given date.
It accepts one argument, which is the date you want to extract the week day from.
It returns the day as a number. The index numbering starts at zero for Monday (i.e. 0 = Monday, 1 = Tuesday, etc). This is in contrast to DAYOFWEEK(), which adheres to the ODBC standard (1 = Sunday, 2 = Monday, etc).
In MariaDB, DAYOFWEEK() is a built-in date and time function that returns the day of the week from a given date.
It accepts one argument, which is the date you want to extract the day of the week from.
It returns the day as a number. The index numbering adheres to the ODBC standard (1 = Sunday, 2 = Monday, etc). This is in contrast to WEEKDAY(), where 0 = Monday, 1 = Tuesday, etc.
In MariaDB, MONTHNAME() is a built-in date and time function that returns the name of the month name for a given date.
It accepts one argument, which is the date you want to extract the month name from.
MariaDB provides several ways to perform arithmetic on dates. This includes adding or subtracting a month (or many months) from a given date.
Here are 6 ways to add a month to a date in MariaDB.
Bonus update: I’ve now added a 7th way to add a month to a date at the end of this article. So I guess it’s now 7 ways to add a month to a date in MariaDB 🙂
In SQL Server, the OPENQUERY rowset function enables you to execute a pass-through query on a linked server.
OPENQUERY is commonly referenced in the FROM clause of a query as if it were a table, but it can also be referenced as the target table of an INSERT, UPDATE, or DELETE statement.
This article presents an example of using OPENQUERY to do an UPDATE pass-through query.
In MariaDB, DAYNAME() is a built-in date and time function that returns the name of the weekday for a given date.
It accepts one argument, which is the date you want to extract the day name from.