5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: store staff 1(0) 1(0) 4177361426142qzay? has has has phone phone_id 1-1(1) country_code M-1(1) 1(0) phone number M-1(1) phone_type M-1(0) 1(0) 1(0) customer 1(0) The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: • All lower case • Underscore separator between root and suffix • Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: 1. Implement the entity as a new phone table. 2. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. 3. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone (phone_id) ON DELETE SET NULL ON UPDATE CASCADE; Specify data types as follows: • phone_id, phone number, and country_code have data type INT. • phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply these constraints: • NOT NULL constraints correspond to cardinalities on the diagram above. • Foreign key actions are SET NULL for delete rules and CASCADE for update rules. • Specify a suitable column as the phone table primary key.

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Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram:

The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names:

  • All lower case
  • Underscore separator between root and suffix
  • Foreign keys have the same name as referenced primary key

Write CREATE TABLE and ALTER TABLE statements that:

  1. Implement the entity as a new phone table.
  2. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables.
  3. Remove the existing phone column from the Sakila address table.

Step 2 requires adding a foreign key constraint to an existing table. Ex:

ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone(phone_id) ON DELETE SET NULL ON UPDATE CASCADE;

Specify data types as follows:

  • phone_id, phone_number, and country_code have data type INT.
  • phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'.

Apply these constraints:

  • NOT NULL constraints correspond to cardinalities on the diagram above.
  • Foreign key actions are SET NULL for delete rules and CASCADE for update rules.
  • Specify a suitable column as the phone table primary key.
store
staff
customer
1(0)
1(0)
1(0)
has
has
has
1(0)
phone
phone_id 1-1(1)
country_code M-1(1)
1(0)| phone_number M-1(1)
phone_type M-1(0)
1(0)
Transcribed Image Text:store staff customer 1(0) 1(0) 1(0) has has has 1(0) phone phone_id 1-1(1) country_code M-1(1) 1(0)| phone_number M-1(1) phone_type M-1(0) 1(0)
y! NBA free age X
← → C
Gmail
https://portal. X
YouTube
learn.zybooks.com/zybook/DAT_380_55841896/chapter/5/section/6
University of X zy Section 2.1 - ×
Maps
=zyBooks My library > DAT/380: Advanced Database Architecture home > 5.6: LAB - Implement independent entity (Sakila)
●
●
MySQL :: My x
Developing S X
5.6 LAB - Implement independent entity (Sakila)
Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram:
●
store
417736.1426142.qx3zqy7
staff
LAB
1(0)
1(0)
customer 1(0)
has
Home
has
10
has
The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names:
• All lower case
Underscore separator between root and suffix
Foreign keys have the same name as referenced primary key
Write CREATE TABLE and ALTER TABLE statements that:
1(0)
ALTER TABLE customer
ADD FOREIGN KEY (phone_id) REFERENCES phone (phone_id)
ON DELETE SET NULL
ON UPDATE CASCADE;
X
phone
phone_id 1-1(1)
country_code M-1(1)
1(0) phone_number M-1(1)
phone_type M-1(0)
1(0)
Gradebook
1. Implement the entity as a new phone table.
2. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables.
3. Remove the existing phone column from the Sakila address table.
Step 2 requires adding a foreign key constraint to an existing table. Ex:
Specify data types as follows:
phone_id, phone_number, and country_code have data type INT.
phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'.
Apply these constraints:
• NOT NULL constraints correspond to cardinalities on the diagram above.
Foreign key actions are SET NULL for delete rules and CASCADE for update rules.
Specify a suitable column as the phone table primary key.
× zy Section 5.6 X
New Tab
New Tab
EzyBooks catalog
Search result X
? Help/FAQ
Jasmine Lawless
Transcribed Image Text:y! NBA free age X ← → C Gmail https://portal. X YouTube learn.zybooks.com/zybook/DAT_380_55841896/chapter/5/section/6 University of X zy Section 2.1 - × Maps =zyBooks My library > DAT/380: Advanced Database Architecture home > 5.6: LAB - Implement independent entity (Sakila) ● ● MySQL :: My x Developing S X 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the Sakila database. Attributes and relationships are shown in the following diagram: ● store 417736.1426142.qx3zqy7 staff LAB 1(0) 1(0) customer 1(0) has Home has 10 has The diagram uses Sakila naming conventions. Follow the Sakila conventions for your table and column names: • All lower case Underscore separator between root and suffix Foreign keys have the same name as referenced primary key Write CREATE TABLE and ALTER TABLE statements that: 1(0) ALTER TABLE customer ADD FOREIGN KEY (phone_id) REFERENCES phone (phone_id) ON DELETE SET NULL ON UPDATE CASCADE; X phone phone_id 1-1(1) country_code M-1(1) 1(0) phone_number M-1(1) phone_type M-1(0) 1(0) Gradebook 1. Implement the entity as a new phone table. 2. Implement the has relationships as foreign keys in the Sakila customer, staff, and store tables. 3. Remove the existing phone column from the Sakila address table. Step 2 requires adding a foreign key constraint to an existing table. Ex: Specify data types as follows: phone_id, phone_number, and country_code have data type INT. phone_type has date type VARCHAR(12) and contains strings like 'Home', 'Mobile', and 'Other'. Apply these constraints: • NOT NULL constraints correspond to cardinalities on the diagram above. Foreign key actions are SET NULL for delete rules and CASCADE for update rules. Specify a suitable column as the phone table primary key. × zy Section 5.6 X New Tab New Tab EzyBooks catalog Search result X ? Help/FAQ Jasmine Lawless
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