To update data in the Cassandra database, batch_update method is used to perform this action. In the below code, we want to update the email address in the database.
Java Code: This is the code to explain Cassandra Update Operation
long timestamp = System.currentTimeMillis();
Column column = new Column("email".getBytes("utf-8"), "firstname.lastname@example.org".getBytes("utf-8"), timestamp);
ColumnOrSuperColumn columnOrSuperColumn = new ColumnOrSuperColumn();