Get Rows Meetings Multiple Conditions

-- Create a table called SUPERHEROES.
CREATE OR REPLACE TABLE SUPERHEROES (
  -- Column called ID allowing up to five characters
  "ID" VARCHAR (5), 
  -- Column called NAME allowing up to 100 characters
  "NAME" VARCHAR(100),
  -- Column called ALTER_EGO allowing up to 100 characters
  "ALTER_EGO" VARCHAR(100),
  -- Column called BANK_BALANCE allowing 38 digits with 2 after the decimal point
  "BANK_BALANCE" NUMBER(38, 2),
  -- Column called AGE allowing 3 digits with 0 after the decimal point
  "AGE" NUMBER(3, 0)
);

-- Insert rows into SUPERHEROES
INSERT INTO SUPERHEROES 
    -- With the values
    VALUES
    ('XF6K4', 'Chris Maki', 'The Bomber', '-100.20', '24'),
    ('KDEJ4', 'Rich Richardson', 'Mr. Money', '233.20', '12'),
    ('KD5SK', 'Donny Mav', 'Nuke Miner', '200.30', '59');

-- Select all columns
SELECT *
-- From the SUPERHEROES table
FROM SUPERHEROES
-- Where the bank balance is less than zero
WHERE BANK_BALANCE < 0
-- And age is greater than 18
AND AGE > 18;