OLTP and OLAP

When a database works as a backend for an application, it implements an OLTP solution. This means that the database is supposed to perform a lot of small transactions on a regular basis. The car portal database we used as an example in previous chapters is an example of a typical OLTP data structure. The application working with this database executes a transaction each time a user does something: creates an account, modifies the password, enters a car into the system, creates or changes an advertisement, and so on. Each of these actions causes a transaction in the database that would create, change or delete a row/couple of rows in one or more tables. The more users work with the system, the more often the transactions are performed. The database should be able to handle the load, and its performance is measured by the number of transactions per second it can handle...