Idon't think you're hitting the Oracle limits first as you'd get an ORA exception, and also wouldn't be able to connect to the database directly. You can configure the data source to collect profile information from the WebLogic console; from the domain structure menu, go to services->JDBC->data sources, pick your connection, and go to the Getearly access and see previews of new features. Learn more about Labs. SqlException: DB2 SQL error: SQLCODE: -302, SQLSTATE: 22001, SQLERRMC: null this will give you the required explanation of the particular SQL code that you normally see in the java exception or your db2 sql output :) hope this helped. Share. Improve this answer Iuse jdbc for communicating with the oracle database. I get the connection from weblogic datasource and insert a record to the table. The problem is that when I want to close the connection (after inserting to the database) I'll face with an exception (Connection has already been closed) .This is my code: Ideally all you have to do is: @Column private String userId; So userId is mapped logically to userId implicitly. It further resolves this proper logical name to a physical name, defined by the PhysicalNamingStrategy. By default, Hibernate uses the logical name as the physical name, but the real purpose of the PhysicalNamingStrategy is to say Whenyou get to a sufficient level of object access history, you will see 03wb337htj9ht SQL (select count(id) from JIAccessEvent where resource_id =:1) taking several seconds of waste during each report execution. Im setting up JPA and Hibernate in a Spring Boot application for the first time and I'm running into some issues. I have this class: @Table @Entity(name = "Student") public class Stu Convertan SQLException using the current converter, doing some logging first. SQLExceptionConverter. getSqlExceptionConverter () Access the current exception converter being used internally. void. handleAndClearWarnings (java.sql.Connection connection, SqlExceptionHelper.WarningHandler handler) General purpose handling of warnings associated Ihave a web application developed with spring, hibernate and mysql as database. While I am trying to input an emoji unicode character like " " from a for a form then I got an exception like SQL Weare trying to update our springboot application from 2.1.0 to 2.3.2 All goes good except for some specific queries that we have. Our queries work up until 2.1.16, but not on 2.2.0 Our query is a Addthis to your class: @Entity @Table(name="User") or @Table(name="Users") public class User Add this dependencies to your pom.xml.No idea what version of hibernate or spring are you using. xru96nI.