A3-askisi1-mandrakis

  • October 2019
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PUBLISHER P_id Name Address telephone

BOOK 1:N

publish es

1:1

Isbn title

AUTHOR 1:N

Book(isbn, title, p_id) Publisher (p_id, name, address, telephone) Author(s_id, name) Writes(isbn, s_id) 1. SELECT * FROM author a; 2. SELECT s_id FROM author a WHERE name like "A%"; 3. SELECT b.isbn,b.title,p.name,p.address,p.telephone FROM book b, publisher p WHERE b.p_id=p.p_id;

writes

1:N

S_id name