SELECT UPPER(product_name) FROM plsql101_product;
SELECT LOWER(product_name) FROM plsql101_product;
SELECT INITCAP(product_name) FROM plsql101_product;

SELECT INITCAP('this TEXT hAd UNpredictABLE caSE') FROM DUAL;


UPDATE plsql101_product
SET    product_name = 'chrome phoobar'
WHERE  product_name = 'Chrome Phoobar';

SELECT * FROM plsql101_product
WHERE  UPPER(product_name) LIKE '%PHOOBAR%';


SELECT INITCAP(product_name), 
       product_price, 
       quantity_on_hand, 
       last_stock_date
FROM   plsql101_product
WHERE  UPPER(product_name) LIKE '%PHOOBAR%';

UPDATE plsql101_product
SET    product_name = 'Chrome Phoobar'
WHERE  product_name = 'chrome phoobar';