Suppose we have two relations Sells (bar, beer, price) Beers (name, manf) And the Sells table includes a foreign key constraint on beer, referencing the Beers table. The foreign key is defined as: FOREIGN KEY (beer) REFERENCES Beers (name) ON DELETE SET NULL ON UPDATE CASCADE; What happens when a record in the Sells table with beer =’Budweiser’ is updated to beer =’Bud Light’? Assuming we have a record in the Beers relation with name =’Budweiser’
Consider the relations Sells (bar, beer,price) and Beers (na…
Consider the relations Sells (bar, beer,price) and Beers (name, manf) and the following view that has been created to list beers sold in specific bars: CREATE VIEW BeersView AS SELECT beer, price FROM Sells WHERE beer IN (SELECT name FROM Beers WHERE manf = ‘Anheuser-Busch’); Is this view updatable?
Consider two tables, Sells and Beers, with the following sch…
Consider two tables, Sells and Beers, with the following schema: CREATE TABLE Beers ( name VARCHAR(50) PRIMARY KEY, manf VARCHAR(50)); CREATE TABLE Sells ( bar VARCHAR(50), beer VARCHAR(50), price DECIMAL(5,2), FOREIGN KEY (beer) REFERENCES Beers(name)); What happens if the following INSERT statement is executed? INSERT INTO Beers(name, manf) VALUES (‘Bud Light’, ‘Anheuser’);
Suppose you have created the following view: CREATE VIEW H…
Suppose you have created the following view: CREATE VIEW HighPricedBeers AS SELECT beer, price FROM Sells WHERE price > 5.00; What does this view represent?
An AP Oblique Ankle projection shows the calcaneus obscuring…
An AP Oblique Ankle projection shows the calcaneus obscuring the distal aspect of the lateral mortise and distal fibula. What error occurred?
Identify the body habitus of this patient. 58. Hypersthenic…
Identify the body habitus of this patient. 58. Hypersthenic patient UGI.png
AP Open Mouth Odontoid shows the top incisors superimposed o…
AP Open Mouth Odontoid shows the top incisors superimposed over the dens. What is the ERROR?
An AP Axial Foot shows the tarso-metatarsal joint spaces clo…
An AP Axial Foot shows the tarso-metatarsal joint spaces closed and the navicular-cuneiform joint spaces obscured (not opened). What error occurred, if any?
A PA skull was performed showing the Petrous Ridges at the i…
A PA skull was performed showing the Petrous Ridges at the inferior 1/3 border of the orbits. How should the error be corrected?
Which position is performed see the pars interarticularis?
Which position is performed see the pars interarticularis?