So, let’s discuss few differences between them:
DataBase Model
SQL
Basically, it is based on a relational database model.
HQL
However, It is a combination of object-oriented programming with relational database concepts.
Main Purpose
SQL
Basically, It manipulates data stored in tables and modifies its rows and columns.
HQL
Whereas, it is concerned about objects and its properties.
Specific Concern
SQL
Basically, It is concerned about the relationship that exists between two tables
2.HQL
Whereas, it considers the relation between two objects.