Question

I am trying to update a date field in my table but would to convert the date format into dd/mm/yy.
i have tried this method but it is still showing like this yyyy-mm-dd

 UPDATE MyTable 
        SET MyField = convert (varchar,GETDATE(), 101)
       where ID = '221'

Answer 1

You shouldn’t consider formatting when inserting. Since the MyField is of data type datetime then just update it with GETDATE() like so:

 UPDATE MyTable 
 SET MyField =  GETDATE()
 where ID = '221'

Dates are not stored with a format.

And you should store date/datetime values into date or datetime data types.

Then, when selecting these date values, you can use the CONVERT function as you did in your question to format the date. And you will find in this page all the codes and thier format. Choose what suits you. Something like:

SELECT
  CONVERT(VARCHAR(10), myfield, 120) 'With formatting'
FROM @table;

Demo