Dynamic websites are difficult to make and maintain but once you made one, you will be able to create tons of pages easily. There are three things to make in a dynamic website.
2. The data of a dynamic website stored in a database. In order to store, search and retrieve that data using SQL (Structured query language)
3. Website logic or business logic: In order to fill the template with data you need to fetch the appropriate data from database. For this you need to write logic. You can write logic using server side scripts like php, asp, jsp, python, perl, haskell, go and many others. You can learn any of the server side script to do this.