WRITE AHEAD LOGGING
Impelementation of WAL with a maximum of 100 files in the log before the committed files are written onto disk

SECURITY
Writing the insert statements in the following format protects against SQL inection attacks
Example:

c.execute("INSERT INTO employees VALUES (?, ?, ?)", (emp1.first, emp1.last, emp1.cost))

NORMALIZATION
The tables are in third normal form 
Rows uniquely identified
Single values in each cell
Entries in column are the same type
All attributes are dependent on the key 
Compound tables are used show transactions i.e the seller, the agent and the office of the agent in the housescompund table  
All fields can only be determined by the key in the table and no other column


Executing 
print (function()) 

will give you the results of the function i.e what the function does

In order to read the sqlite.py file, all you have to do is run the sqlite3 file in your terminal
All the dependencies and required libraries are imported in this file