convert string dd/mm/yyyy in date sql server 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 convert date to string yyyy-mm-dd

select CONVERT(char(10), GetDate(),126)
/* 2020-12-23 */