What is the purpose of the MySQL date() function?

The date() function in MySQL is used to extract the date portion of a date or datetime expression. If a datetime expression is passed, the result will only include the date portion, omitting the time. For example, if you pass “2021-09-30 14:30:00”, the date() function will return “2021-09-30”. This function is commonly used in queries and filtering operations related to dates.