select b.*, 
		(select filename from dosya where ana_dosya='1' and book_id=b.book_id) as kapak,
		(select name_az from class where class_id=b.class_id) as class_name 
		from book b 
		where b.book_id='299'<br/>Tarih : 2024-04-24 18:57:27 Script Name : e-derslik.edu.az/portal/book.php?id=299 MySQL Error : Unknown table engine 'InnoDB' MySQL Error No : 1286select b.*, 
		(select filename from dosya where ana_dosya='1' and book_id=b.book_id) as kapak,
		(select name_az from class where class_id=b.class_id) as class_name 
		from book b 
		where b.book_id='299'<br/>Tarih : 2024-04-24 18:57:27 Script Name : e-derslik.edu.az/portal/book.php?id=299 MySQL Error : Unknown table engine 'InnoDB' MySQL Error No : 1286