. Show the ID of all the authors that do not have any books. a). Using a join: b). Using a subquery:

Programming Logic & Design Comprehensive
9th Edition
ISBN:9781337669405
Author:FARRELL
Publisher:FARRELL
Chapter7: File Handling And Applications
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3. Show the ID of all the authors that do not have any books.

a). Using a join:

b). Using a subquery:

mysql> DESC author;
mysql> DESC book;
mysql> DESC bookauthor;
| Field
| Туре
| Field
| Typ
| Field
| Туре
| author_id
int(1
varch
| isbn
| name
| var
| var
tauthor_id
isbn
tint(11
| varcha
author_order | int(11
S5n
lastname varch.
| firstname | varch
phone
address
| type
| var
royaltyshare
decima.
varch
varch
varch.
| pub_id
| int
| dec
| price
| advance
| dec
ytd_sales | int
I pubdate
| city
| state
| zip
varch.
| varch
| dat
mysql> DESC bookeditor;
| Field
I fype
mysql> DESC editor;
mysql> DESC publisher;
| Field
| editor_id | int(11)
| isbn
| varchar(1
| editor_id
ssn
| lastname
| firstname
| phone
editor position
salary
| Field
| Туре
I pub id | int(11)
name
address | varchar(40)
city
| state
varchar(40)
I varchar(20)
I varchar(2)
Transcribed Image Text:mysql> DESC author; mysql> DESC book; mysql> DESC bookauthor; | Field | Туре | Field | Typ | Field | Туре | author_id int(1 varch | isbn | name | var | var tauthor_id isbn tint(11 | varcha author_order | int(11 S5n lastname varch. | firstname | varch phone address | type | var royaltyshare decima. varch varch varch. | pub_id | int | dec | price | advance | dec ytd_sales | int I pubdate | city | state | zip varch. | varch | dat mysql> DESC bookeditor; | Field I fype mysql> DESC editor; mysql> DESC publisher; | Field | editor_id | int(11) | isbn | varchar(1 | editor_id ssn | lastname | firstname | phone editor position salary | Field | Туре I pub id | int(11) name address | varchar(40) city | state varchar(40) I varchar(20) I varchar(2)
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