About SELECT

tutorial

Step 1: Create a Web Project

Explains how to create a NetBeans Web Application project with ObjectDB/JPA support.... dialog box, e.g. by using File > New Project... Select Java Web > Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select Apache Tomcat 6 as the Server. Note: You may have to add Tomcat ...

 
tutorial

JPA Web App Tutorial - Eclipse Project

Opening a JPA Maven web application project in the Eclipse IDE.... . Open the Maven project in Eclipse: Select  File > Import... > Maven > Existing Maven Projects and click  Next . Select the  guestbook-web directory as Root Directory and ...

 
forum_thread

Cannot sort descending, when ordering by caluculated float in a method

Hi, I have found an issue in ordering by a method. I have two entities : Invoice and InvoiceItem. public class InvoiceItem{ ..     private float price;     private float amount; .. }   public class Invoice{ ... query: (I know, it's not very efficient...) select i from Invoice i order by i.getPrice() desc/asc it gives the ... query = em. createQuery ( "SELECT i FROM Invoice i ORDER BY i.getPrice() DESC" ) ; ...

 
tutorial

Step 1: Create a Java EE 6 Web Project

Explains how to create a NetBeans Java EE 6 (J2EE) project with ObjectDB/JPA support.... dialog box, e.g. by using File > New Project... Select Java Web > Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select GlassFish Server 3 (or above) and Java EE 6 Web and click ...

 
tutorial

Step 2: Entity Class and Persistence Unit

Explains how to define a JPA entity class and a persistence unit (persistence.xml) in an Eclipse Spring MVC web application project.... node (in the [Package Explorer] window), select  New > Source Folder , enter src/main/java as Folder Name ... src/main/resources node (in the [Project Explorer]) and select  New > Folder. The parent folder should be ...

 
tutorial

Step 2: Entity Class and Persistence Unit

To store objects in an ObjectDB database using JPA we need to define an entity class:... > Folder and clicking Next ). Select the project src folder as a parent folder, enter META-INF as a ... the new META-INF folder in the [Project Explorer] window, select New > File , enter persistence.xml as file name and click ...

 
tutorial

Java EE 6 JPA Tutorial - Eclipse Project

Opening a Java EE 6 JPA Maven web application project in the Eclipse IDE.... Open the Maven project in Eclipse: Select  File > Import... > Maven > Existing Maven Projects and click  Next . Select the  guestbook-jee6 directory as Root Directory and ...

 
tutorial

Spring MVC JPA Tutorial - Eclipse Project

Opening a Spring MVC JPA Maven web application project in the Eclipse IDE.... . Open the Maven project in Eclipse: Select  File > Import... > Maven > Existing Maven Projects and click  Next . Select the  guestbook-spring directory as Root Directory and ...

 
api-jpa

javax.persistence.FieldResult

Is used to map the columns specified in the SELECT list of the query to the properties or fields of the entity class.(Annotation of JPA)

 
api-jpa

javax.persistence.ColumnResult

References name of a column in the SELECT clause of a SQL query - i.e., column alias, if applicable.(Annotation of JPA)