About SELECT

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Manual
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Running JPA Queries

The Query interface defines two methods for running SELECT queries: Query.getSingleResult - for use ... query = em.createQuery("SELECT c FROM Country c", Country.class); ListSELECT c FROM Country c"); List results = query
Manual
15

Paths and Types in JPQL and Criteria API

identification variables and SELECT result variables. Parameters - when instances of these classes are assigned ... through a NULL value The following query retrieves country names with their capital city names: SELECT ... of all the entity objects in the database, excluding Country entity objects: SELECT COUNT(e) FROM
Tutorial
15

Step 1: Install BIRT and ObjectDB Driver

 Eclipse IDE for Java EE Developers environment: Open the [Install] dialog box by selecting Help ... Neon, Oxygen) and press ENTER. Click the Select All button to select all the BIRT features. Complete ... To install the ObjectDB data source driver for BIRT: Open the [Install] dialog box by selecting Help
Tutorial
15

Getting Started with JPA - Eclipse Project [2015-06-02]

: Select File > Import... > Maven > Existing Maven Projects and click Next. Select the points-console directory as Root Directory and press ENTER. Select the project and click Finish. Run the project in Eclipse: Right click the project node and select Run As > Java Application. Select Main - point and click OK.
Tutorial
15

Getting Started with JPA - Eclipse Project

: Select File > Import... > Maven > Existing Maven Projects and click Next. Select the points-console directory as Root Directory and press ENTER. Select the project and click Finish. Run the project in Eclipse: Right click the project node and select Run As > Java Application. Select Main - point and click OK.
Tutorial
13

Step 1: Create a Web Project

. 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 ... and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory of the ObjectDB
Tutorial
13

Step 2: Entity Class and Persistence Unit

the project node (in the [Package Explorer] window), select New > Source Folder, enter src/main/java ... the new source directory node (in the [Package Explorer] window) and selecting New > Class. Enter guest as ... : Right click the src/main/resources node (in the [Project Explorer]) and select New > Folder
Manual
13

DELETE Queries in JPA/JPQL

an alternative way for deleting entity objects. Unlike SELECT queries, which are used to retrieve data from ... returns the number of objects that have been deleted by the query. Selective Deletion The structure of DELETE queries is very simple relative to the structure of SELECT queries. DELETE queries
Tutorial
13

Step 2: Entity Class and Persistence Unit

) and selecting New > Class. Enter guest as the package name - use exactly that case sensitive package ... the [Project Explorer] window) and selecting New > Folder (or New > Other... > General > Folder and clicking Next). Select the project src folder as a parent folder, enter META-INF as a new folder
Tutorial
13

Step 1: Create a Java EE 6 Web Project

] 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 ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory