scanf

int i, userNum;

NSLog(@"Enter a number");

scanf("%i", &userNum);

for(i = 1; i<=userNum; i++)

NSLog(@"%i", i);

joins

• JOIN: Return rows when there is at least one match in both tables
• LEFT JOIN: Return all rows from the left table, even if there are no matches in the right table
• RIGHT JOIN: Return all rows from the right table, even if there are no matches in the left table
• FULL JOIN: Return rows when there is a match in one of the tables

sql

SELECT E_Name FROM Employees_Norway
UNION
SELECT E_Name FROM Employees_USA