Added DROP DATABASE Command
Added CREATE DATABASE command and connection to bank_homework database
Added command to create payments table
Added command to add zipcode. Also fixed datatype for amount in table payments
Added command to insert 21 values to payments table
Added command to update amount for record with id 9.
Added command to delete payments with amounts < $2
Added command to select all entries from payments table.
Added command to SELECT DISTINCT recipient names from payments table
Added command to select all payments matching the name of John Doe
Added command to select all payments with a blank description
Updated data type for created_at from DATE to TIMESTAMP