Now, let's create our keyspace and a column family using the cqlsh client. Run the command cqlsh, then you should be on the cqlsh prompt. On the cqlsh prompt, run the keyspace creation command as follows:

cqlsh> CREATE KEYSPACE cassandrademodb WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3 };

Here, we created a keyspace named cassandrademodb. We chose the replication factor as 3, so each data row we'll be creating will be stored on three nodes. Since, for now we're running our cluster on only one cluster, we chose the replication strategy as SimpleStrategy.

Now, create one column family called users in this keyspace. Here, we'll use username column as the partition key. Using the cqlsh prompt we can create it as follows:

cqlsh> use cassandrademodb;
cqlsh:cassandrademodb> CREATE TABLE songs ( username text PRIMARY KEY, email text, address text );

Here, we defined the username as a partition key as well as a primary key. However...