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SQL ORDER BY


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SQL > SQL Advanced > SQL ORDER BY


What is SQL ORDER BY?

The SQL ORDER BY clause is the part of the SELECT statement that controls the sequence of information returned.
 

 

The SQL ORDER BY clause is really a sort feature that enables the output to be sorted by one or more columns.

Why Use SQL ORDER BY?

Use the SQL ORDER BY clause whenever it is desirable to control the sequence output through a SELECT clause. It might be used to alphabetize a report or to print the most import items at the beginning of a report.

How To Use SQL ORDER BY

SQL ORDER BY is used as follows.

SQL ORDER BY Syntax

 
SELECT <column_name1>, <column_name2>
FROM <table_name>
ORDER BY <column_name1>[ASC|DESC], <column_name2>[ASC|DESC]
 

Multiple columns can be included in the ORDER BY clause. The direction of the sort is controlled by:

  • ASC - ascending sequence
  • DESC - descending sequence

SQL ORDER BY Example

The following example displays rows from the branch in region_nbr and branch_nbr ascending sequence.

Here are the contents of the table:

Table: BRANCH
branch_nbrbranch_nameregion_nbremployee_count
108New York10010
110Boston1006
212Chicago2005
404San Diego4006
415San Jose4003

This SQL Statement with ORDER BY is executed:

 
SELECT region_nbr, branch_nbr, branch_name
FROM branch
ORDER BY region_nbr ASC, branch_nbr ASC
 

Here is the result.

region_nbrbranch_nbrbranch_name
100108New York
100110Boston
200212Chicago
400404San Diego
400415San Jose

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