convert date in sql server to yyyy-mm code example

Example 1: sql server cast date dd/mm/yyyy

--string to date
  SELECT cast(convert(date, '23/07/2009', 103) AS DATE)
  select convert(date, '23/07/2009', 103)

Example 2: SQL query to convert DD/MM/YYYY to YYYY-MM-DD

SELECT CONVERT(varchar(10), CONVERT(date, '13/12/2016', 103), 120)