sql first 10 characters of field code example

Example 1: mysql get first x characters

SELECT LEFT(title , 10) FROM articles;

Example 2: reading from right to left from string find first special characters in sql

DECLARE @strvalue varchar(20) = 'SDADH/SDKDS/SD/UIO-123/WEA/456'
SELECT REVERSE(SUBSTRING(REVERSE(@strvalue),0,CHARINDEX ('/',REVERSE(@strvalue))))