What is the meaning of ASC and DESC keywords in SQL server?
Experience Level: Junior
Tags: DatabasesQuality Assurance (QA)
Answer
Both keywords are used in SELECT
query together with ORDER BY
statement. They define how the result-set will be sorted.
ORDER BY columnName ASC
sorts the result-set in ascending order. The default order for theORDER BY
statement is ascending so if you use neitherASC
norDESC
keyword, the result-set will be sorted in ascending order.ORDER BY columnName DESC
sorts the result-set in descending order.
Examples:
The following query will sort the result-set in ascending order:
The following query will sort the result-set in ascending order (because neither ASC nor DESC is present):
The following query will sort the result-set in descending order:
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