we are familiar with different types of democracies, let's discuss the role of a constitution within a government framework. Most governments do have a written constitution that provides the framework for the government.
A notable exception would be Great Britain that considers its thousand years of court precedent to be its constitution. However there is a great difference between a constitutional government and a government with a constitution.
A good example of the difference would be the People's Republic of China and the United States. What role does a constitution play within a democracy?