When to use DESC or order by in MySQL?
“[WHERE condition | GROUP BY `field_name(s)` HAVING condition” is the optional condition used to filter the query result sets. “ORDER BY” performs the query result set sorting. “[ASC | DESC]” is the keyword used to sort result sets in either ascending or descending order. Note ASC is used as the default.
How to use the ORDER BY clause in MySQL?
The order by clause is used to sort the query result sets in either ascending or descending order. It is used in conjunction with the SELECT query. It has the following basic syntax. SELECT statement… [WHERE condition | GROUP BY `field_name(s)` HAVING condition] ORDER BY `field_name(s)` [ASC | DESC];
When to use the DESC keyword in MySQL?
ORDER BY fieldname (s) is mandatory and is the field on which the sorting is to be performed. The MySQL DESC keyword specifies that the sorting is to be in descending order.
Is the order by FieldName in MySQL mandatory?
ORDER BY fieldname (s) is mandatory and is the field on which the sorting is to be performed. The MySQL DESC keyword specifies that the sorting is to be in descending order. [LIMIT] is optional but can be used to limit the number of results returned from the query result set.
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When to use the ORDER BY clause in JPQL?
The ORDER BY clause specifies a required order for the query results. Any JPQL query that does not include an ORDER BY clause produces results in an undefined and non-deterministic order. The following query returns names of countries whose population size is at least one million people, ordered by the country name:
When to use ascending order or DESC in JPA?
Therefore, when ascending order is required it is usually omitted even though it could be specified explicitly, as follows: On the other hand, to apply descending order the DESC keyword must be added explicitly to the order expression: The ORDER BY clause is always the last in the query processing chain.
Can a query be ordered by multiple order expressions?
Query results can also be ordered by multiple order expressions. In this case, the first expression is the primary order expression. Any additional order expression is used to order results for which all the previous order expressions produce the same values.