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Implement the belongs _ to and works _ at relationships as foreign keys: belongs _ to becomes an address _ id foreign key in person
Implement the belongsto and worksat relationships as foreign keys:
belongsto becomes an addressid foreign key in person with data type SMALLINT UNSIGNED.
worksat becomes a storeid foreign key in staff with data type TINYINT UNSIGNED LAB Implement supertype and subtype entities Sakila
Similar entities have many common attributes and relationships. Similar entities are often converted into subtypes of a supertype entity, as
illustrated in this lab.
In the Sakila database, the customer and staff tables have several common columns. Convert these tables into subtypes of person.
Specifically, write CREATE TABLE statements for person, customer, and staff that implement this ER diagram:
address
belor
Follow Sakila conventions for table and column names:
All lower case
Underscore separator between root and suffix
Foreign keys have the same name as referenced primary key
Implement attributes as columns:
The primary key of all three tables is personid with data type SMALIINT UNSIGNED.
The lastupdate and createdate columns have data type TIMESTAMP.
The picture column has data type BLOB.
All other columns have data type VARCHAR
Implement the belongsto and worksat relationships as foreign keys:
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