Hibernate, as we know, is database agnostic. It can work with different databases. However, databases have proprietary extensions/native SQL variations, and set/sub-set of SQL standard implementations. Therefore at some point hibernate has to use database specific SQL. Hibernate uses "dialect" configuration to know which database you are using I am working on a hibernate JPA project and I'm facing the above mentioned exception, it's telling that my SQL syntax is not good almost I'm pretty sure of my hibernate configuration with my MySQL database, can anyone help me figure out what's the problem please ? Here is some code: UsersHome.java
Using the Hibernate Integrator API, we can write our own component that captures the SessionFactory build-time metadata which, otherwise, is only available during bootstrap. The org.hibernate.boot.model.relational.Database is what we are interested in since it contains all the database-related metadata.
Java Database Connectivity (JDBC) is an application programming interface (API) for the programming language Java, which defines how a client may access any kind of tabular data, especially a relational database. JDBC Drivers uses JDBC APIs which was developed by Sun Microsystem, but now this is a part of Oracle.
In this short tutorial, we’ll look at the Spring JdbcTemplate “EmptyResultDataAccessException: Incorrect result size: expected 1, actual 0” exception. First, we’ll discuss in detail the root cause of this exception. Then, we’ll see how to reproduce it using a practical example, and finally learn how to fix it. 2. The Cause
public interface MyCustomerRepository extends JpaRepository { } You should create this MyCustomerRepository and using this interface you can save or fetch all entity data that you need.But before it you should modify your configuration in and you must include postgresql or mysql dependency into your pom.xml
Hibernate understands both the Java and JDBC representations of application data. The ability to read/write this data from/to the database is the function of a Hibernate type. A type, in this usage, is an implementation of the org.hibernate.type.Type interface. This Hibernate type also describes various aspects of behavior of the Java type such
