Next to the common SQL databases, hibernate allows us to perform an aggregate operation using a hibernate API. We can perform an aggregation operation such as
count, and so on.
We will discuss the use of some aggregate functions by example.
To perform an aggregation operation, we will consider a predefined table structure with the data so that it's easy to understand how the aggregate functions work.
The predefined table and class structure we mentioned earlier can be found in two different classes,
category, with their relationship. The following code and script can be used to create a Java class and a database table.
Use the following script to create ...