1. Overview. Connection pooling is a well-known data access pattern. Its main purpose is to reduce the overhead involved in performing database connections and read/write database operations. At the most basic level, a connection pool is a database connection cache implementation that can be configured to suit specific requirements.

public class HibernateTemplate extends Object implements HibernateOperations, InitializingBean. Helper class that simplifies Hibernate data access code. Automatically converts HibernateExceptions into DataAccessExceptions, following the org.springframework.dao exception hierarchy. The central method is execute, supporting Hibernate access code

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
declaration: package: org.springframework.dao, class: DataAccessException. Parameters: msg - the detail message cause - the root cause (usually from using an underlying data access API such as JDBC) This interceptor binds a new Hibernate Session to the thread before a method call, closing and removing it afterwards in case of any method outcome. HibernateTemplate: Helper class that simplifies Hibernate data access code. HibernateTransactionManager: PlatformTransactionManager implementation for a single Hibernate SessionFactory. On local machine all works fine. But when I tried to do get request on server machine, hibernate throws the following exception: JDBC exception on Hibernate data access: SQLException for SQL [n/a]; SQL state [HY000]; error code [1030]; could not extract ResultSet; nested exception is org.hibernate.exception.GenericJDBCException: could not In your StudentInfo class there is one field: private User user; You have not mapped user with any field in your form controller. You can map your user like this: If no mapping annotation from below is defined, JPA assumes that ClassDetails object will be saved (along with its all nested graph) to DB and hence it creates a LOB type 1 Answer. Sorted by: 4. We need to also load the database driver as dependency in the pom.xml. For MS SQL, we would add the following to the pom.xml: io.quarkus quarkus-jdbc-mssql . See the official quarkus guide on panache, Section In this article. The Microsoft JDBC Driver for SQL Server is a Type 4 JDBC driver that provides database connectivity through the standard JDBC application program interfaces (APIs) available on the Java platform. The driver downloads are available to all users at no extra charge. They provide access to SQL Server from any Java application
It fails on creating/executing a query, acording to the stacktrace you are using HSQLDB make sure you actually are using that (and not something else). There should also be more to the stacktrace then this, (generally the query leading to an issue is included somewhere). – M. Deinum. Dec 5, 2016 at 7:58.
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 Whereas Hibernate manages the exceptions itself by marking them as unchecked. JDBC is database dependent i.e. one needs to write different codes for different database. Whereas Hibernate is database-independent and the same code can work for many databases with minor changes.
Hibernate Envers - org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update 1 Could not execute JDBC batch update; uncategorized SQLException for SQL
As I said in the post, I did use ddl-auto=update and ddl-auto=validate, and the application fails to run. I'm pretty sure this is due to the fact that I am using a CommandLineRunner method in my main class to seed test data, and the old data is still in the tables, so there are duplicates that violate constraints. Environment HikariCP version: 2.7.3 JDK version: 1.8.0_121 Database: MySQL Driver version: x.x.x Hibernate version: 5.1.10.Final Tomcat version: 8.5.23 After a few hours running, my application stop working.

Researched and found that people are suggesting annotating with @Type( type = "org.hibernate.type.StringClobType" ) and @Type( type = "org.hibernate.type.BinaryType" ). Both of which are Hibernate Annotations. However, we intend to use JPA annotations and this would need Hibernate at runtime, which seems to me as unnecessary.

"JDBC exception on Hibernate data access; nested exception is org.hibernate.exception.GenericJDBCException: could not execute query" in Metadata Manager (MM) console ERROR: "[PRSVCSHARED_01707] Connection issues with the configured database" when upgrading MRS contents in IDQ
validate: validate the schema, makes no changes to the database. update: update the schema. create: creates the schema, destroying previous data. create-drop: drop the schema when the SessionFactory is closed explicitly, typically when the application is stopped. none: does nothing with the schema, makes no changes to the database TbNBl.