LOWER VE UPPER  KOMUT ÖRNEKLERİ

SELECT FIRST_NAME, LOWER (LAST_NAME), JOB_ID FROM EMPLOYEES

WHERE LOWER (LAST_NAME) LIKE '__k%' --LOWER FONKSİYONU TÜM KARAKTERİ KÜCÜLTÜR

SELECT FIRST_NAME, UPPER (LAST_NAME), JOB_ID FROM EMPLOYEES

WHERE UPPER (LAST_NAME) LIKE '__k%' --UPPER FONKSİYONU TÜM KARAKTERİ BÜYÜTÜR