Function in sql

Question

hi 

anyone please help me

how to create a function 

you need to pass a string value it return in proper case

for example you pass the value "raja"

it should be return "Raja"

iam trying but iam not got correct output

iam try to Upper case function 

Select UPPER('amudhan')

it should return all letters are capital 

I need only first letter be capital how to do that please help me anyone