MySQL ORDER BY Date ASC NULL Last - SQL

The ORDER BY clause in MySQL is used to sort the result set of a query based on one or more columns. By default, the sorting is done in ascending order. However, when dealing with date values, it can be beneficial to sort null values at the end of the result set.

To achieve this, you can use the following SQL statement:

SELECT column1, column2, ...
FROM table_name
ORDER BY column_name IS NULL, column_name ASC;

Let's break down the above statement:

• column1, column2, ...: Specify the columns you want to select from the table.
• table_name: Replace this with the actual name of the table you want to query from.
• column_name: Replace this with the name of the column that contains the date values you want to sort.

The ORDER BY clause consists of two parts:

1. column_name IS NULL: This part sorts the null values at the end of the result set. It returns either 0 (false) or 1 (true) for each row, where 1 represents a null value and 0 represents a non-null value. Since false (0) is considered lower than true (1) when sorting in ascending order, the null values will be sorted last.

2. column_name ASC: This part sorts the non-null values in ascending order. Replace column_name with the actual column name you want to sort.

Here's an example usage:

SELECT id, name, birth_date
FROM employees
ORDER BY birth_date IS NULL, birth_date ASC;

In this example, we are selecting the id, name, and birth_date columns from the employees table. The result set will be sorted in ascending order of the birth_date column, with null values placed at the end.

Remember to replace table_name and column_name with the appropriate values based on your specific scenario.

I hope this explanation helps you understand how to use ORDER BY to sort date values in MySQL, with null values at the end.