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In the Restaurant project completed
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‎SQL Code Challenges - Lynda/In the Restaurant/Restaurant_Challenges.sql

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/*********************** Time to Celebrate Restaurant Anniversary ***************************************/
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/**************************************************************/
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/* Create invitations for a party */
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/**************************************************************/
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SELECT FirstName, LastName, Email
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FROM Customers
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ORDER BY LastName;
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/**************************************************************/
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/* Create a table to store information */
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/**************************************************************/
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CREATE TABLE PartyAttendees(
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CustomerID INTEGER,
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PartySize INTEGER,
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FOREIGN KEY(CustomerID) REFERENCES Customers(CustomerID)
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);
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/**************************************************************/
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/* Print a menu */
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/**************************************************************/
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SELECT * FROM Dishes
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LIMIT 2;
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SELECT DISTINCT(Type)
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FROM Dishes;
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/*All items sorted by price, low to high*/
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SELECT *
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FROM Dishes
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ORDER BY Price;
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/*Appetiers and beverages, by type*/
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SELECT *
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FROM Dishes
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WHERE Type IN ("Beverage", "Appetizer")
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ORDER BY Type;
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/*All items except beverages, by type*/
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SELECT *
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FROM Dishes
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WHERE Type NOT IN ("Beverage")
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ORDER BY Type;
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/**************************************************************/
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/* Sign a cutomer up for your loyalty program */
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/**************************************************************/
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INSERT INTO Customers(FirstName, LastName, Email, Address, City, State, Phone, Birthday)
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VALUES ('Vivian', 'Fong', '[email protected]', '123 forest street', 'Singapore', 'ABC', '123-456', '27-08-2000');
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SELECT * FROM Customers
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ORDER BY CustomerID DESC;
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/**************************************************************/
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/* Update Customer Personal Information */
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/**************************************************************/
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SELECT CustomerID, FirstName, LastName, Address, City, State
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FROM Customers WHERE FirstName = "Taylor" AND LastName = "Jenkins";
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UPDATE Customers
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SET Address = "74 Pine St", City = "New York", State = "NY"
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WHERE CustomerID = 26;
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SELECT * FROM Customers
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WHERE CustomerID = 26;
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/**************************************************************/
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/* Remove Customer Record */
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/**************************************************************/
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SELECT CustomerID, FirstName, LastName, Email, Phone
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FROM Customers WHERE FirstName = "Taylor" AND LastName = "Jenkins";
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DELETE
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FROM Customers
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WHERE CustomerID = 4;
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/**************************************************************/
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/* Log Customer Responses */
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/**************************************************************/
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INSERT INTO PartyAttendees(CustomerID, PartySize)
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VALUES(
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(SELECT CustomerID FROM Customers WHERE Email LIKE '[email protected]')
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,3
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);
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SELECT * FROM PartyAttendees;
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/**************************************************************/
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/* Look up Reservations */
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/**************************************************************/
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SELECT r.*, c.FirstName, c.LastName, c.Email, c.Phone
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FROM Reservations r
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JOIN Customers c
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ON r.CustomerID = c.CustomerID
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WHERE c.LastName LIKE 'Ste%'
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ORDER BY r.Date DESC;
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/**************************************************************/
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/* Take a Reservation */
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/**************************************************************/
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SELECT * FROM Customers
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WHERE Email = '[email protected]';
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INSERT INTO Customers(FirstName, LastName, Email, Phone)
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VALUES('Same', 'McAdams', '[email protected]', '(555)555-1212)');
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INSERT INTO Reservations(CustomerID, Date, PartySize)
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VALUES('102','2020-07-14 18:00:00','5');
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SELECT * FROM Reservations
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WHERE CustomerID = 102;
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/**************************************************************/
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/* Take a Delivery Order */
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/**************************************************************/
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/* check cusotmer exist or not */
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SELECT * FROM Customers
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WHERE FirstName = 'Loretta' AND LastName = 'Hundey';
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/* check dishes */
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SELECT * FROM Dishes;
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/* create order */
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INSERT INTO Orders(CustomerID, OrderDate)
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VALUES(
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(SELECT CustomerID FROM Customers WHERE FirstName = 'Loretta' AND LastName = 'Hundey'),
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'27-08-2020 20:00:00'
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);
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/* check the latest order of that customer */
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SELECT OrderID FROM Orders WHERE CustomerID IN
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(SELECT CustomerID FROM Customers WHERE FirstName = 'Loretta' AND LastName = 'Hundey')
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ORDER BY OrderID DESC
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LIMIT 1;
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/* Create order dishes */
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INSERT INTO OrdersDishes(OrderID, DishID)
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VALUES(
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(SELECT OrderID FROM Orders WHERE CustomerID IN
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(SELECT CustomerID FROM Customers WHERE FirstName = 'Loretta' AND LastName = 'Hundey')
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ORDER BY OrderID DESC
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LIMIT 1),
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(SELECT DishID FROM Dishes WHERE Name LIKE 'House Salad' )
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);
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INSERT INTO OrdersDishes(OrderID, DishID)
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VALUES(
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(SELECT OrderID FROM Orders WHERE CustomerID IN
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(SELECT CustomerID FROM Customers WHERE FirstName = 'Loretta' AND LastName = 'Hundey')
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ORDER BY OrderID DESC
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LIMIT 1),
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(SELECT DishID FROM Dishes WHERE Name LIKE 'Mini Cheeseburgers' )
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);
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INSERT INTO OrdersDishes(OrderID, DishID)
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VALUES(
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(SELECT OrderID FROM Orders WHERE CustomerID IN
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(SELECT CustomerID FROM Customers WHERE FirstName = 'Loretta' AND LastName = 'Hundey')
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ORDER BY OrderID DESC
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LIMIT 1),
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(SELECT DishID FROM Dishes WHERE Name LIKE 'Tropical Blue Smoothie' )
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);
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/* Calculate Total Cost */
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SELECT d.Name, SUM(d.Price)
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FROM OrdersDishes od
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LEFT JOIN Dishes d
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ON od.DishID = d.DishID
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WHERE od.OrderID == 1001;
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/**************************************************************/
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/* Track Customer Favourite */
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/**************************************************************/
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SELECT *
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FROM Customers
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WHERE FirstName = 'Cleo' AND LastName = 'Goldwater';
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UPDATE Customers
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SET FavoriteDish = (SELECT DishID FROM Dishes WHERE Name LIKE 'Quinoa Salmon Salad')
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WHERE FirstName = 'Cleo' AND LastName = 'Goldwater';
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SELECT *
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FROM Customers c
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JOIN Dishes d
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ON c.FavoriteDish = d.DishID
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WHERE FirstName = 'Cleo' AND LastName = 'Goldwater';
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/**************************************************************/
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/* Report of Top 5 Customers */
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/**************************************************************/
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SELECT FirstName, LastName, Email, COUNT(OrderID) AS NumberOfOrders
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FROM Customers c
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JOIN Orders o
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ON c.CustomerID = o.CustomerID
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GROUP BY c.CustomerID
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ORDER BY 4 DESC
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LIMIT 5;

‎SQL Code Challenges - Lynda/In the Restaurant/original_db/restaurant.db

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‎SQL Code Challenges - Lynda/In the Restaurant/restaurant.db

284 KB
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