LastIndexOf in TSQL

I came a cross a case where I need to parse a string and get a everything after specific character. Unfortunately there is no a function that is being shipped out of the box with MS SQL Server that is doing the needed job. So we had to use 3 built-in functions in SQL in order to do the job, here is a sample TSQL statement that demonstrate how you can do it

DECLARE @SomeString VARCHAR(100)
SET @SomeString = 'Part1;Part2;Part3'

SELECT RIGHT(@SomeString, CHARINDEX(';', REVERSE(@SomeString) + ';') - 1)