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POMissing sequence or table: hibernate_sequence
 

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  1. POMissing sequence or table: hibernate_sequence
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    <p>I am new to hibernate and postgres. Actually I am trying to map potgres database using Hibernate. This is my table stucture in postgresql</p> <pre><code>CREATE TABLE employee ( id serial NOT NULL, firstname character varying(20), lastname character varying(20), birth_date date, cell_phone character varying(15), CONSTRAINT employee_pkey PRIMARY KEY (id ) ) </code></pre> <p>I am trying to add a record to the database using the following code</p> <pre><code> System.out.println("******* WRITE *******"); Employee empl = new Employee("Jack", "Bauer", new Date(System.currentTimeMillis()), "911"); empl = save(empl); //This is the save function private static Employee save(Employee employee) { SessionFactory sf = HibernateUtil.getSessionFactory(); Session session = sf.openSession(); session.beginTransaction(); int id = (Integer) session.save(employee); employee.setId(id); session.getTransaction().commit(); session.close(); return employee; } </code></pre> <p>When I execute the code I am getting the following error</p> <pre><code>org.hibernate.HibernateException: Missing sequence or table: hibernate_sequence Exception in thread "main" java.lang.ExceptionInInitializerError at org.tcs.com.Hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:18) at org.tcs.com.Hibernate.HibernateUtil.&lt;clinit&gt;(HibernateUtil.java:8) at org.tcs.com.Hibernate.MainApp.list(MainApp.java:51) at org.tcs.com.Hibernate.MainApp.main(MainApp.java:17) Caused by: org.hibernate.HibernateException: Missing sequence or table: hibernate_sequence at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1282) at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:155) at org.hibernate.internal.SessionFactoryImpl.&lt;init&gt;(SessionFactoryImpl.java:498) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1740) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1778) at org.tcs.com.Hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:15) ... 3 more </code></pre> <p>I have the sequence called "employee_id_seq" in my database. But I dont know why the database is looking for hibernate_seq. Could someone explain the error and the reason.</p> <p>Thanks in advance!</p> <p><strong>Added info</strong></p> <p>This is my employee class</p> <pre><code>import java.sql.Date; public class Employee { private int id; private String firstname; private String lastname; private Date birthDate; private String cellphone; public Employee() { } public Employee(String firstname, String lastname, Date birthdate, String phone) { this.firstname = firstname; this.lastname = lastname; this.birthDate = birthdate; this.cellphone = phone; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getFirstname() { return firstname; } public void setFirstname(String firstname) { this.firstname = firstname; } public String getLastname() { return lastname; } public void setLastname(String lastname) { this.lastname = lastname; } public Date getBirthDate() { return birthDate; } public void setBirthDate(Date birthDate) { this.birthDate = birthDate; } public String getCellphone() { return cellphone; } public void setCellphone(String cellphone) { this.cellphone = cellphone; } } </code></pre>
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    1. PTQuestion
    1. USLakshmi
    1. USLakshmi
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    1. This table or related slice is empty.
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      1. POMissing sequence or table: hibernate_sequence
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      1. VTUpMod
    1. COI'd say Hibernate doesn't know that you are using sequences. It seems to want to use it's own home-grown (slow) sequence table. There should be some kind of anotation that tells Hibernate that your `id` column is linked to a sequence.
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      1. POMissing sequence or table: hibernate_sequence
      1. USa_horse_with_no_name
 

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