Sorting Result Sets

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 Ordering the Result Set: By default, the result set returned by a SELECT statement may not be in any particular order. To display the result set in a specific order, we use the ORDER BY clause. This clause is used to sort the result set by a specified column. For example, SELECT title FROM book ORDER BY title sorts the result set alphabetically by book title in ascending order.


Descending Order: To sort the result set in descending order instead of ascending order, we can use the DESC keyword after the column name in the ORDER BY clause. For example, SELECT title FROM book ORDER BY title DESC sorts the result set in descending alphabetical order by book title.


Specifying Sort Column: Another way to specify the sort column is by indicating the column sequence number in the ORDER BY clause. This is useful when we want to sort by a column without specifying its name. For example, SELECT title, pages FROM book ORDER BY 2 sorts the result set by the second column, which is the pages column, in ascending order.


By using these techniques, we can control the order in which the result set is displayed, making it more convenient and meaningful for the user.





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