chore: import upstream snapshot with attribution

docker/examples/sqls/case_2_ecom_sqlite.sql

@@ -0,0 +1,59 @@
+CREATE TABLE users (
+    user_id INTEGER PRIMARY KEY,
+    user_name VARCHAR(100),
+    user_email VARCHAR(100),
+    registration_date DATE,
+    user_country VARCHAR(100)
+);
+
+CREATE TABLE products (
+    product_id INTEGER PRIMARY KEY,
+    product_name VARCHAR(100),
+    product_price REAL
+);
+
+CREATE TABLE orders (
+    order_id INTEGER PRIMARY KEY,
+    user_id INTEGER,
+    product_id INTEGER,
+    quantity INTEGER,
+    order_date DATE,
+    FOREIGN KEY (user_id) REFERENCES users(user_id),
+    FOREIGN KEY (product_id) REFERENCES products(product_id)
+);
+
+INSERT INTO users (user_id, user_name, user_email, registration_date, user_country) VALUES
+(1, 'John', 'john@gmail.com', '2020-01-01', 'USA'),
+(2, 'Mary', 'mary@gmail.com', '2021-01-01', 'UK'),
+(3, 'Bob', 'bob@gmail.com', '2020-01-01', 'USA'),
+(4, 'Alice', 'alice@gmail.com', '2021-01-01', 'UK'),
+(5, 'Charlie', 'charlie@gmail.com', '2020-01-01', 'USA'),
+(6, 'David', 'david@gmail.com', '2021-01-01', 'UK'),
+(7, 'Eve', 'eve@gmail.com', '2020-01-01', 'USA'),
+(8, 'Frank', 'frank@gmail.com', '2021-01-01', 'UK'),
+(9, 'Grace', 'grace@gmail.com', '2020-01-01', 'USA'),
+(10, 'Helen', 'helen@gmail.com', '2021-01-01', 'UK');
+
+INSERT INTO products (product_id, product_name, product_price) VALUES
+(1, 'iPhone', 699),
+(2, 'Samsung Galaxy', 599),
+(3, 'iPad', 329),
+(4, 'Macbook', 1299),
+(5, 'Apple Watch', 399),
+(6, 'AirPods', 159),
+(7, 'Echo', 99),
+(8, 'Kindle', 89),
+(9, 'Fire TV Stick', 39),
+(10, 'Echo Dot', 49);
+
+INSERT INTO orders (order_id, user_id, product_id, quantity, order_date) VALUES
+(1, 1, 1, 1, '2022-01-01'),
+(2, 1, 2, 1, '2022-02-01'),
+(3, 2, 3, 2, '2022-03-01'),
+(4, 2, 4, 1, '2022-04-01'),
+(5, 3, 5, 2, '2022-05-01'),
+(6, 3, 6, 3, '2022-06-01'),
+(7, 4, 7, 2, '2022-07-01'),
+(8, 4, 8, 1, '2022-08-01'),
+(9, 5, 9, 2, '2022-09-01'),
+(10, 5, 10, 3, '2022-10-01');