SQL string REVERSE() function was introduced in SQL Server 2008. REVERSE() function will returns the reverse order of a string value. If you given integer value or datetime to reverse() function it will first convert to string value and then returns the reverse value of it.
Example
SELECT REVERSE('HELLO WORLD')
OutputDLROW OLLEH
Example
SELECT REVERSE('56789')
Output98765
Example
SELECT REVERSE(GETDATE())
OutputMP74:01 5102 2 ceD
Example 