![]() With these settings, I now would need to know how does my framework handle database migrations? I mean if I change a column, either it's type, or even might remove it, then how do I migrate the database to the change? I know that spring boot will automatically detect column changes on startup, and create columns that do not exist based on the models (Entity's). I configure my application to use hibernate with JPA. Now I have started a project with Spring Boot and Hibernate. You did not have to write migrations by yourself, the framework created them for you. I think this way of doing worked in both development and in production. The Django framework provided tool for creating the migrations based on your models, and also a tool to apply the migrations on your database. In Django, getting started with database migrations was easy: Django migrations. It supports many databases such as Oracle, MySql, Sybase, etc.My database background comes from the Django framework (python).Hibernate is database-independent as it provides ‘Database Dialect’ so we need not write SQL queries.It is developer-friendly as it takes care of the changes made to the database automatically, so it reduces the developer’s work. Hibernate is easy to learn and implement.It also improves the performance of an application.Lazy loading concept retrieves the only necessary object for execution. Hibernate supports a new concept called lazy loading.Hibernate can be used for both small scale and large scale applications. Hibernate is highly scalable as it can be fit in any environment.It means a programmer need not worry about the query implementation, i.e., Hibernate does on its own. Hibernate provides a feature of automatic table generation.Caching is the process of storing data into cache memory and improves the speed of data access.Hibernate supports two levels of caching, first-level and second-level caching.HQL is an object-oriented language similar to SQL, but it works with the persistent object and its properties.Hibernate has its query language, i.e., HQL (Hibernate Query Language) which is independent of the database.Hibernate supports many different fetching techniques such as, caching, lazy initialization, and many more to achieve high performance.It also solves the problem of data mismatch found in Java application and RDBMS.Hibernate is an ORM tool which helps in the interaction between the java classes and relational database.The latest version a user can download is Hibernate 5.4. It can be downloaded from its official website,.Its source code is made available so that anyone can use and develop applications using hibernate. ![]() Hibernate is open-source software that means it is available for everyone without any cost.It is a lightweight framework because it uses persistent classes for data transfer between java application and databases.Hibernate is a lightweight framework as it does not contains additional functionalities it uses only those functionalities required for object-relational mapping.Hibernate Tutorials Introduction to Hibernate Hibernate History Hibernate Features Hibernate Architecture Hibernate Session Factory Hibernate Session Hibernate Examples Hibernate First Example Hibernate Annotations Example Web Application Example Hibernate GeneratedValue Strategies Hibernate Dialects Hibernate Inheritance Mapping Single Table Strategy Table per Class Strategy Joined Table Strategy Hibernate Mapping Hibernate Mapping Hibernate One To One Mapping Hibernate One To Many Mapping Hibernate Many To One Mapping Hibernate Many To Many Mapping Hibernate Named Query Named Query using XML file Named Query using annotation Hibernate Caching Hibernate Caching First level Cache Second Level Cache Hibernate Query Language (HQL) Hibernate Query Language Hibernate Criteria Query Language (HCQL) Hibernate Criteria Query Language Misc N+1 SELECT problem in hibernate Dirty checking in hibernate Lazy loading Hibernate configuration Cascade in Hibernate Hibernate life cycle Inverse in Hibernate Merge in Hibernate Composite key in Hibernate Load() vs.
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