How does MySQL handle date and time data?

In MySQL, date and time data are typically stored using specific data types. You can use the following data types to handle date and time data:

  1. DATE: Used for storing date values in the format ‘YYYY-MM-DD’, for example, ‘2021-01-01’.
  2. TIME is used to store time values in the format of ‘HH:MM:SS’, for example ’14:30:00′.
  3. The DATETIME data type is used to store date and time values in the format ‘YYYY-MM-DD HH:MM:SS’, for example ‘2021-01-01 14:30:00’.
  4. TIMESTAMP: used to store a timestamp, indicating the number of seconds since January 1, 1970.
  5. YEAR: Used to store the year value in the format ‘YYYY’, for example ‘2021’.

Various functions and operators can be used in MySQL to manipulate date and time data, such as:

  1. NOW(): Retrieve the current date and time.
  2. DATE_FORMAT(): Format a date or time value into a specified format.
  3. DATE_ADD() and DATE_SUB(): Perform addition and subtraction operations on date values.
  4. DATE_DIFF() calculates the difference between two date values.
  5. Extract the date part of the date.
  6. The TIME() function extracts the time portion.
  7. Functions like DAYOFWEEK(), DAYOFMONTH(), MONTH(), YEAR(), etc. extract specific parts of a given date.

By using these functions and data types, efficient processing and manipulation of date and time data can be achieved.

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