MySQL - 문자열을 다른 문자열로 바꾸는 함수 replace() 문자열을 뒤집는 함수 reverse()

INSERT INTO books (title, author_fname, author_lname, released_year, stock_quantity, pages)
VALUES
('The Namesake', 'Jhumpa', 'Lahiri', 2003, 32, 291),
('Norse Mythology', 'Neil', 'Gaiman',2016, 43, 304),
('American Gods', 'Neil', 'Gaiman', 2001, 12, 465),
('Interpreter of Maladies', 'Jhumpa', 'Lahiri', 1996, 97, 198),
('A Hologram for the King: A Novel', 'Dave', 'Eggers', 2012, 154, 352),
('The Circle', 'Dave', 'Eggers', 2013, 26, 504),
('The Amazing Adventures of Kavalier & Clay', 'Michael', 'Chabon', 2000, 68, 634),
('Just Kids', 'Patti', 'Smith', 2010, 55, 304),
('A Heartbreaking Work of Staggering Genius', 'Dave', 'Eggers', 2001, 104, 437),
('Coraline', 'Neil', 'Gaiman', 2003, 100, 208),
('What We Talk About When We Talk About Love: Stories', 'Raymond', 'Carver', 1981, 23, 176),
("Where I'm Calling From: Selected Stories", 'Raymond', 'Carver', 1989, 12, 526),
('White Noise', 'Don', 'DeLillo', 1985, 49, 320),
('Cannery Row', 'John', 'Steinbeck', 1945, 95, 181),
('Oblivion: Stories', 'David', 'Foster Wallace', 2004, 172, 329),
('Consider the Lobster', 'David', 'Foster Wallace', 2005, 92, 343),
('10% Happier', 'Dan', 'Harris', 2014, 29, 256),
('fake_book', 'Freida', 'Harris', 2001, 287, 428),
('Lincoln In the Bardo', 'George', 'Saunders', 2017, 156, 375);

문자열을 다른 문자열로 바꾸는 함수 replace( )

-- 책 제목에 The가 있으면, 제거하고싶다.
select replace(title,'The','') as title
from books;

 

 

문자열을 뒤집는 함수 reverse( )

-- author_lname을 역순으로 가져오시오.

select reverse(author_lname) as reverse_author_lname
from books;