Date & Time in MySQL
Date and time are important data types in MySQL. They are used to store and manipulate date and time values. In this tutorial, we'll discuss how to work with dates and times in MySQL.
Syntax
MySQL uses both DATE and DATETIME data types to store date and time values.
-- DATE format: YYYY-MM-DD
CREATE TABLE MyTable ( MyDate DATE );
-- DATETIME format: YYYY-MM-DD HH:MM:SS
CREATE TABLE MyTable ( MyDateTime DATETIME );
Example
Here's an example of how to insert a date and a time value into a MySQL table:
INSERT INTO MyTable (MyDate, MyDateTime) VALUES (DATE('2022-01-01'), '2022-01-01 00:00:00');
Output
When we query the table, we get the following output:
SELECT * FROM MyTable;
+------------+---------------------+
| MyDate | MyDateTime |
+------------+---------------------+
| 2022-01-01 | 2022-01-01 00:00:00 |
+------------+---------------------+
Explanation
In the example above, we created a table called "MyTable" with two columns: "MyDate" of type DATE and "MyDateTime" of type DATETIME. We then inserted a row into the table with a date and time value.
Use
Date and time values are essential for many applications. In MySQL, you can use date and time values to store birth dates, order dates, and appointment times. You can also use date and time functions to perform calculations on date and time values to find differences, retrieve different portions of date and time values, and more.
Important Points
- MySQL stores dates in the format yyyy-mm-dd.
- MySQL stores times in the format hh:mm:ss.
- MySQL stores date and time values in the format yyyy-mm-dd hh:mm:ss.
- MySQL provides a range of date and time functions to perform calculations on date and time values.
- MySQL also provides functions to format date and time values into different formats for display.
Summary
In this tutorial, we discussed how to work with date and time values in MySQL. We covered the syntax, an example, output, explanation, use, and important points of working with dates and times in MySQL. By understanding how to work with dates and times in MySQL, you can use them effectively in your applications.