Overview
The `REVERSE` function in SQL Server is a built-in function that reverses the order of characters in a string.
It's useful when you need to process strings in reverse, such as for encryption, data analysis, or other specialized tasks.
Syntax
REVERSE ( string )
Parameters
string: The string to be reversed. The string must be enclosed in single quotes.
Return Value
Returns a string containing the reversed characters of the input string.
Example
SELECT REVERSE('hello'); -- Returns 'olleh'
SELECT REVERSE('SQL Server'); -- Returns 'revesrS leqS'
Notes
The `REVERSE` function operates on the entire string at once. It does not process the string character by character.
For more information, see the Microsoft Learn documentation.