PostgreSQL REVERSE() function

REVERSE() function

The PostgreSQL reverse() function is used to arrange a string in reverse order.

Uses of REVERSE() Function

• String Manipulation: Reverse the order of characters in a string.


• Text Processing: Useful for palindromes or when analyzing text patterns.


• Data Transformation: Transform strings for specific formatting or data presentation needs.


• Algorithm Implementation: Implement algorithms that require reversed string logic.

Syntax:

reverse(<string>)

PostgreSQL Version: 9.3

Visual Presentation of PostgreSQL REVERSE() function

Example: PostgreSQL reverse() function:

In the example below, the string 'w3resource' have arranged in reverse order.

SQL Code:

SELECT reverse('w3resource');

Output:

  reverse
------------
 ecruoser3w
(1 row)

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