How to get a particular date format ('dd-MMM-yyyy') in SELECT query SQL Server 2008 R2

Question

I am using CONVERT(data_type(length),expression,style) function to change the format of a date in a SELECT query.

Declare @dt nvarchar(20)

Answer 1

select CONVERT(NVARCHAR, SYSDATETIME(), 106) AS [DD-MON-YYYY]

or else

select REPLACE(CONVERT(NVARCHAR,GETDATE(), 106), ' ', '-')

both works fine