In MySQL, several built-in functions can be used to retrieve the current date and time. The most commonly used function is NOW(), which returns a value representing the current date and time in the format YYYY-MM-DD HH:MM:SS.
For example, if you want to use the current date and time in a query, you can write the following SQL statement:
sqlSELECT NOW();
This statement returns the date and time when the query is executed.
Additionally, there are other functions that can be used to retrieve the current date or time, such as:
CURDATE(): Returns the current date in the formatYYYY-MM-DD.CURTIME(): Returns the current time in the formatHH:MM:SS.
If you only need a specific part of the date or time, you can use functions such as YEAR(), MONTH(), DAY(), HOUR(), MINUTE(), and SECOND() to extract the year, month, day, hour, minute, or second from the result of NOW(). For example:
sqlSELECT YEAR(NOW()), MONTH(NOW()), DAY(NOW());
This statement returns the current year, month, and day.
Using these functions enables you to handle and utilize date and time data flexibly in database operations.