MoL Chapter 2 Lab

From chapter 2 Lab

Show the name of the element with symbol 'N'

SELECT name
  FROM element
 WHERE sym='N'

SELECT name
  FROM element
 WHERE sym='N'

Show the symbol for the element ‘Selenium’

SELECT sym
  FROM element
 WHERE name='Selenium'

Show the atomic number of 'Oxygen'

SELECT num
  FROM element
 WHERE name='Oxygen'

Show the element with atomic number 23

SELECT name
  FROM element
 WHERE num=23

List the elements where the atomic number is less than 5.

SELECT name
  FROM element
 WHERE num<5

4. 5. 6. 7. List the elements where the name comes before ‘Boron’ alphabetically. 8. Clorine (symbol Cl) has symbol length 2. Hydrogen (symbol H) has symbol length 1. List all the name and symbol of all elements with symbol length 1. You can use the function length(sym) to get the length of the symbol 9. Show the elements with names longer than 10 characters. 10. List the elements where the group is larger than the atomic number.