Database Management Systems
In MariaDB, CURTIME() is a built-in date and time function that returns the current time.
The time is returned in either 'HH:MM:SS' or HHMMSS.uuuuuu format, depending on whether the function is being used in a string or numeric context.
You also have the option of specifying the microsecond precision.
In MariaDB, CURRENT_DATE and CURRENT_DATE() are synonyms for CURDATE().
The CURDATE() function is a built-in date and time function that returns the current date.
The date is returned in either 'YYYY-MM-DD' or YYYYMMDD, depending on whether the function is being used in a string or numeric context.
In MariaDB, CURDATE() is a built-in date and time function that returns the current date.
The date is returned in either 'YYYY-MM-DD' or YYYYMMDD, depending on whether the function is being used in a string or numeric context.
MariaDB provides several ways to add a year or a certain number of years to a given date. For example, you might want to add 1 year, 10 years, 30 years, etc.
Here are 6 ways to add a year to a date in MariaDB.
Here are some options for subtracting one or more minutes from a datetime expression in MariaDB.
If you get the “$pullAll requires an array argument but was given a double” error in MongoDB, it’s because you didn’t provide an array as the value to replace.
In MariaDB, CONVERT_TZ() is a built-in date and time function that converts a datetime value from one time zone to another.
When you call the function, you pass three arguments: the time, the time zone to convert from, and the time zone to convert to.
If you’re getting an error telling you that access is denied for the root user in MariaDB, this article may help.
If you want to use named time zones in MariaDB, you’ll need to make sure they’ve been configured.
By “named time zones”, I mean being able to use strings like America/Los_Angeles instead of −08:00 or −07:00 when specifying the time zone. For example, when using the CONVERT_TZ() function.
Here’s how to configure named time zones in MariaDB.
If you have documents that store dates as Date objects, but you want to return them in a different format, you can use the $dateToString aggregate pipeline operator.
For example, you might want a date to be returned in mm/dd/yyyy format instead of the long ISODate() format that includes minutes, seconds, milliseconds, etc
The $dateToString operator converts the Date object to a string, and optionally allows you to specify a format for the resulting output.