Handling NULL Values
When multiple columns are used for sorting data, it is a good idea to consider what is done with the NULL values. Without giving any special preference, NULL values are sorted first in ascending order (ASC) and last in descending order (DESC). Still, the SQL function makes it customizable through the NULLS FIRST or NULLS LAST options.
Sorting Data According to More Than One Column in SQL
In the world of relational databases, SQL (Structured Query Language) is probably the language one will need to use to manage and manipulate data. Sorting of data is one of the basic operations in SQL that helps users to get query results arranged as they want. If sorting on one column is simple enough, there are cases when it is better to sort by multiple columns. In this article, we will see what multi-column sorting is and then some example queries on sorting data according to more than one column.