upper and lower functions

The upper and lower are simple functions to convert to fully upper case or lower case respectively. The upper function converts all the characters in a string to uppercase. Thelower function converts all the characters in a string to lowercase.
returnvalue upper (source)
returnvalue lower (source) 

source ::= any* 
returnvalue ::= string
Example 1: Fetch the full name of the passenger in uppercase whose ticket number is 1762376407826.
SELECT upper(fullname) AS FULLNAME_CAPITALS 
FROM BaggageInfo 
WHERE ticketNo=1762376407826
Output:
{"FULLNAME_CAPITALS":"DIERDRE AMADOR"}
Example 2: Fetch the full name of the passenger in lowercase whose ticket number is 1762376407826.
SELECT lower(fullname) AS fullname_lowercase
FROM BaggageInfo WHERE ticketNo=1762376407826
Output:
{"fullname_lowercase":"dierdre amador"}