Difference between lazy and eager loading in Hibernate

Lazy and Eager are two types of data loading strategies in ORMs such as hibernate and eclipse Link.  These data loading strategies we used when one entity class is having references to other Entities like Employee and Phone (phone in the employee). 

Lazy Loading − Associated data loads only when we explicitly call getter or size method.

• Use Lazy Loading when you are using one-to-many collections.
• Use Lazy Loading when you are sure that you are not using related entities. 

Egare Loading − Data loading happens at the time of their parent is fetched.

•  Use Eager Loading when the relations are not too much. Thus, Eager Loading is a good practice to reduce further queries on the Server.
• Use Eager Loading when you are sure that you will be using related entities with the main entity everywhere.