How to sort in descending order in sql

To sort in descending order in SQL, you can use the following methods: Direct method: ORDER BY clause DESC keyword auxiliary column: Create an auxiliary column to save the descending value, and then sort. Subquery: Calculate the descending value and then sort.

How to sort in descending order in SQL

Direct method

Use the ORDER BY clause, followed by the column name to be sorted, and specify the DESC keyword for descending order:

<code class="sql">SELECT * FROM table_name ORDER BY column_name DESC;</code>

Use Auxiliary Column

For data types that are not suitable for direct descending order (such as text), you can create an auxiliary column to hold the descending value:

<code class="sql">ALTER TABLE table_name ADD COLUMN reversed_column_name AS 1 - column_name;

SELECT * FROM table_name ORDER BY reversed_column_name;</code>

Use a subquery

You can also use a subquery to calculate descending values ​​and then sort:

<code class="sql">SELECT * FROM table_name ORDER BY (SELECT MAX(column_name) FROM table_name) - column_name;</code>

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