Your query is only looking at given name. To get Upper Case you would have this query:
SELECT UCase([GIVEN_NAME]) AS Given_Name_Conv
FROM [Standard Format];
to show lower case you would have:
SELECT LCase([GIVEN_NAME]) AS Given_Name_Conv
FROM [Standard Format];
To show both in the same query you would have:
SELECT LCase([GIVEN_NAME]) AS Given_Name_Conv
FROM [Standard Format]
UNION ALL
SELECT UCase([GIVEN_NAME]) AS Given_Name_Conv
FROM [Standard Format]