How to Get Yesterday Date in MySQL
In the world of databases, especially when working with MySQL, it’s often necessary to manipulate dates and times to perform various operations. One common task is to retrieve the date of the previous day, which is often used in generating reports, setting up triggers, or any scenario where you need to reference data from the day before. In this article, we will explore different methods to get yesterday’s date in MySQL.
Using the DATE_SUB Function
One of the simplest ways to get yesterday’s date in MySQL is by using the DATE_SUB function. This function allows you to subtract a specified time interval from a date. To get yesterday’s date, you can subtract one day from the current date.
“`sql
SELECT DATE_SUB(CURDATE(), INTERVAL 1 DAY) AS yesterday_date;
“`
In this example, CURDATE() returns the current date, and DATE_SUB subtracts one day from it. The result is aliased as “yesterday_date” for better readability.
Using the INTERVAL Keyword
Another approach to obtaining yesterday’s date is by using the INTERVAL keyword directly in the SELECT statement. This method is quite similar to the previous one but offers a more concise syntax.
“`sql
SELECT CURDATE() – INTERVAL 1 DAY AS yesterday_date;
“`
This statement achieves the same result as the previous example but uses a slightly different syntax. The INTERVAL keyword is used to specify the number of days to subtract from the current date.
Using the LAST_DAY Function
If you need to get the last day of the previous month, you can use the LAST_DAY function in combination with the INTERVAL keyword. This can be useful when you want to ensure that the date you’re working with is the last day of the previous month.
“`sql
SELECT LAST_DAY(CURDATE() – INTERVAL 1 MONTH) AS yesterday_date;
“`
In this example, LAST_DAY returns the last day of the month for the given date. By subtracting one month from the current date, you can obtain the last day of the previous month.
Conclusion
In conclusion, there are several methods to get yesterday’s date in MySQL. Whether you prefer using the DATE_SUB function, the INTERVAL keyword, or the LAST_DAY function, each approach has its own advantages. By understanding these methods, you can easily retrieve the date of the previous day for your database operations.
