Benefits of SQLite are that it is powerful, fast, and reliable with a huge community that uses it. If you find any problem, it will be easy to find a solution since somebody from the community has most likely already solved such issues. SQLite is a self-contained, embedded, full-featured, public-domain SQL database engine.
We will use SQLite to store all our Todos and Notes. To do that, we will define our database, the mechanism for accessing it, and data management. We will not expose a naked database instance directly, but we will wrap it properly so it is easy to insert, update, query, or remove data.