How can you modify the field values in Hive?

To change the values of fields in a Hive table, you can use the UPDATE statement in Hive. Here is an example:

Suppose we have a table called employee, which includes the fields id, name, and salary. Now, to update the salary field value to 1000 for the employee with id of 1, the following statement can be used:

UPDATE employee
SET salary = 1000
WHERE id = 1;

By using this UPDATE statement, it is possible to modify the values of specific fields in a row. It is important to note that in Hive, the UPDATE operation does not directly support updating on the original table, instead it is achieved by copying the data to a new table.