Database.Guide

MySQL has a PERIOD_DIFF() function that enables you to find the difference between two periods. The periods are provided as two separate arguments, and they should in the format YYMM or YYYYMM.

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MySQL has a PERIOD_ADD() function that allows you to add a number of months to a given period. It returns a value in the format YYYYMM.

This article provides examples to demonstrate how it works.

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In MySQL, the MONTHNAME() function returns the month name from a date.

For example, if you provide a date of 2021-12-07, the MONTHNAME() function will return December.

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You can use the MONTH() function in MySQL to return the month from a date.

In this context, the month is a value between 1 and 12 (or 0 for dates with a zero month part).

For example, if you provide a date of 2018-10-07, the MONTH() function will return 10.

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When using MySQL, you can use the MAKETIME() function to return a time from the various time parts.

In other words, you provide three arguments; the hour, the minutes, and the seconds. The MAKETIME() function will then return the time value based on those two arguments.

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When using MySQL, you can use the MAKEDATE() function to return a date from the year and day-of-year parts.

In other words, you provide two arguments; one being the year, and the other being the day-of-year. The MAKEDATE() function will then return the date value based on those two arguments.

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The MySQL LOCALTIME function is a synonym for the NOW() function. It returns the current date and time.

The value is returned in ‘YYYY-MM-DD HH:MM:SS’ or YYYYMMDDHHMMSS format, depending on whether the function is used in a string or numeric context.

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The MySQL LOCALTIMESTAMP function is a synonym for the NOW() function. It returns the current date and time.

The value is returned in ‘YYYY-MM-DD HH:MM:SS’ or YYYYMMDDHHMMSS format, depending on whether the function is used in a string or numeric context.

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When using MySQL, you can use the LAST_DAY() function to return the last day of a given month.

You can provide the current date, or you can provide another specified date (for example, a date from a column in a database), and LAST_DAY() will return the last day of the month for that date.

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The MySQL MICROSECOND() function is used to return the microsecond component from a time value.

The return value for this function is in the range 0 to 999999. Below are examples to demonstrate.

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