Storing Lists in Redis: Insertion Commands

As well as storing Strings in Redis, we can also store Lists. The Redis database internally stores List as a linked list. This linked list has a head and tail. Whenever we insert a new element, we can insert it either at the head or tail. The ‘head’ of the list is considered as the left-most element of the list and the ‘tail’ is considered as right-most element of the list.

Let’s look at some of the commands that are used to handle the List in the Redis database. We need to store a list of all the companies which build cars. We will store the list in a key, called cars. If a new company arrives then it is added to the list. If a company stops producing cars, then it is removed from the list. We are going to maintain this list in Redis. ...