Is desc in ascending or descending order in sql?
The DESC keyword in SQL is used to specify that the query results are sorted in descending order, that is, from the maximum value to the minimum value. It first retrieves the data, then sorts it by the value of the specified column from large to small, and then returns the sorted results.
DESC represents descending order in SQL
In SQL, the DESC keyword is used to specify the order of database query results. descending sort. That is, sort from maximum value to minimum value.
How it works:
When DESC is used in a query, the database engine will:
- First retrieve data based on the query conditions.
- Arrange the retrieved data from large to small according to the value of the specified column.
- Return the sorted results.
Example:
The following query uses the DESC keyword to sort employees in descending order by the salary
column:
SELECT * FROM employees ORDER BY salary DESC;
Executing this query will return a result set with employees ordered from highest salary to lowest salary.
Note:
- DESC is the opposite of ASC (ascending).
- If no sort order is specified in the query, the database will default to sorting the results in ascending order.
- DESC can be used with multiple columns to achieve multi-level sorting.
- DESC can be used with other aggregate functions (such as MAX, MIN) to return the highest or lowest value.
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