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Identify the Foreign Key from table “Sales”
Table Client:
ClientID (primary Key)
clientname
clientphone
Table Client:
ClientID (primary Key)
clientname
clientphone
Table : Sales
SalesID (Primary Key)
ClientID
Profit
SalesID (Primary Key)
ClientID
Profit
- a)SalesID
- b)Profit
- c)Clientphone
- d)ClientID
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Identify the Foreign Key from table “Sales”Table Client:Cl...
Explanation:
The correct answer is option D, which is ClientID.
Explanation:
- In the given table schema, we have two tables named "Client" and "Sales".
- The Client table has three attributes: ClientID (primary key), clientname, and clientphone.
- The Sales table has three attributes: SalesID (primary key), ClientID, and Profit.
- The Sales table has a foreign key "ClientID" that refers to the primary key "ClientID" of the Client table.
- The Sales table stores information about the sales made by different clients, and the profit earned from each sale.
- The Client table stores information about the clients, such as their name and phone number.
- The SalesID attribute of the Sales table is used to uniquely identify each sales record.
- The Profit attribute of the Sales table is used to store the profit earned from each sale.
- The Clientphone attribute of the Sales table is not a valid attribute, as it does not belong to the Sales table and is already present in the Client table.
- The correct answer to the question "Which attribute is not present in the Sales table?" is option D, which is ClientID.
Conclusion:
The correct answer is option D, which is ClientID. The Sales table has three attributes: SalesID, ClientID, and Profit. The ClientID attribute is used as a foreign key to refer to the primary key of the Client table. The other options (SalesID, Profit, and Clientphone) are valid attributes of the Sales table.
The correct answer is option D, which is ClientID.
Explanation:
- In the given table schema, we have two tables named "Client" and "Sales".
- The Client table has three attributes: ClientID (primary key), clientname, and clientphone.
- The Sales table has three attributes: SalesID (primary key), ClientID, and Profit.
- The Sales table has a foreign key "ClientID" that refers to the primary key "ClientID" of the Client table.
- The Sales table stores information about the sales made by different clients, and the profit earned from each sale.
- The Client table stores information about the clients, such as their name and phone number.
- The SalesID attribute of the Sales table is used to uniquely identify each sales record.
- The Profit attribute of the Sales table is used to store the profit earned from each sale.
- The Clientphone attribute of the Sales table is not a valid attribute, as it does not belong to the Sales table and is already present in the Client table.
- The correct answer to the question "Which attribute is not present in the Sales table?" is option D, which is ClientID.
Conclusion:
The correct answer is option D, which is ClientID. The Sales table has three attributes: SalesID, ClientID, and Profit. The ClientID attribute is used as a foreign key to refer to the primary key of the Client table. The other options (SalesID, Profit, and Clientphone) are valid attributes of the Sales table.
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Identify the Foreign Key from table “Sales”Table Client:Cl...
Correct answer is D. ClientID
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