Here are the SQL commands from the screenshots you uploaded, written in markdown format:
-- Command 1
SELECT COUNT(*) AS Total_Customers
FROM DEMO_CUSTOMERS;-- Command 2
SELECT AVG(List_Price) AS Average_List_Price
FROM DEMO_PRODUCT_INFO;-- Command 3
SELECT SUM(Order_Total) AS Total_Order_Sum
FROM DEMO_ORDERS;-- Command 4
SELECT MAX(Credit_Limit) AS Highest_Credit_Limit
FROM DEMO_CUSTOMERS;-- Command 5
SELECT MIN(Order_Total) AS Lowest_Order_Total
FROM DEMO_ORDERS;-- Command 6
SELECT PRODUCT_ID, ROUND(List_Price) AS Rounded_List_Price
FROM DEMO_PRODUCT_INFO;-- Command 7
SELECT SYSDATE AS Current_Date_Time
FROM Dual;-- Command 8
SELECT Order_ID, EXTRACT(YEAR FROM Order_Timestamp) AS Order_Year
FROM DEMO_ORDERS;-- Command 9
SELECT Order_ID, Order_Timestamp,
Order_Timestamp + INTERVAL '30' DAY AS New_Timestamp
FROM DEMO_ORDERS;-- Command 10
SELECT *
FROM DEMO_Orders
ORDER BY Order_Total DESC;-- Command 11
SELECT Product_ID, SUM(Unit_Price * Quantity) AS Total_Sales_Amount
FROM DEMO_ORDER_ITEMS
GROUP BY Product_ID;-- Command 12
SELECT Customer_ID, COUNT(*) AS Number_of_Orders
FROM DEMO_ORDERS
GROUP BY Customer_ID;-- Command 13
SELECT Customer_ID, COUNT(*) AS Number_of_Orders
FROM DEMO_ORDERS
GROUP BY Customer_ID
HAVING COUNT(*) > 5;-- Command 14
SELECT Product_ID, SUM(Quantity) AS Total_Ordered
FROM DEMO_ORDER_ITEMS
GROUP BY Product_ID
HAVING SUM(Quantity) > 10;Let me know if you need further assistance!