14.3 Object Life Cycle
We look at how we as the developers of a Python class can interact with the moment of construction and destruction of various objects created using the class.
28 Syys 20166min
14.4 Object Inheritance
We look at how we can make a new class by inheriting all of the attributes and methods of a parent class and then extend the new class with additional attributes and methods.
28 Syys 20167min
15.1 Relational Databases
We look at the history of database systems, learn the terminology of database systems, and review some of the common database systems that are in use.
28 Syys 201615min
15.2 Single Table SQL
We learn about how we can use Structured Query Language (SQL) to insert (create), read, update, and delete data in a single database table.
28 Syys 201610min
Worked Example: Storing Twitter Data
We retrieve and store Twotter data in a database.
28 Syys 20169min
15.3 Building a Relational Model
We look at how we can take the various data elements that will be modeled in an application and distribute them across several tables efficiently. We learn about the basic rules of database design.
28 Syys 20168min
15.4 Database Key Types
We look at primary keys, logical keys and foreign keys. We look at how foreign keys are represented in the database.
28 Syys 20164min
15.5 Representing Relationships in Database Tables
We look at how we map a logical database model to a physical database model by adding columns and constraints to model the table-to-table relationships.
28 Syys 201611min
