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CREATE TABLE "customers" (
"Id" INTEGER PRIMARY KEY,
"LastName" TEXT,
"FirstName" TEXT
);
CREATE TABLE "goods" (
"Id" TEXT PRIMARY KEY,
"Flavor" TEXT,
"Food" TEXT,
"Price" REAL
);
CREATE TABLE "items" (
"Receipt" INTEGER,
"Ordinal" INTEGER,
"Item" TEXT,
PRIMARY KEY(Receipt, Ordinal),
FOREIGN KEY (Item) REFERENCES goods(Id)
FOREIGN KEY (Receipt) REFERENCES receipts(ReceiptNumber)
);
CREATE TABLE "receipts" (
"ReceiptNumber" INTEGER PRIMARY KEY,
"Date" TEXT,
"CustomerId" INTEGER,
FOREIGN KEY(CustomerId) REFERENCES customers(Id)
);
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