ObjectDB Database Search
51-100 of 200 resultsProblem with distinct select, order by and equivalent alias/attribute path; String q1 = " select distinct s_location "   ... ; q1 = " select distinct s.location "   ... ; String q2 = " select distinct s.location "   | |
ClassCastException on SELECT NEW ... after UPDATE over Java RMI internally runs SELECT NEW ... queries. For example: SELECT NEW com.arunta.base.db.FileNameDTO(r.id, r.fileName) FROM RecordingMetaData AS r WHERE ... A remote RMI client runs SELECT (but not SELECT ... is that once we UPDATE a record from the client (via the RMI interface), all SELECT NEW ... queries | |
Multi selection and distinct in a criteria query hi, How can I realize multi selection with the criteria api concerning distinct? I.e. doing something like SELECT DISTINCT $1, $2 wouldn't work because I do only have something like criteria.multiselect(...) and nothing like builder.distinct( selection ) so that I could do something like criteria | |
Is there any faster select method? SELECT : TypedQuery query = em.createQuery( " SELECT p FROM Point p WHERE p ... ); ** the Point class is of the tutorial. I found the above select method is ten times slower ... . Is there any faster method of select ? TIA pikotenta pikotenta Entity objects can be retrieved by | |
selecting objects that have a particular key/value in persistant HashMap create a JPA query that selects such objects? Something like the following (but clearly does not work) : SELECT p FROM Person p where p.pMap['location']='California' Any thoughts? Thanks, -Adam adamMc Adam Please try the following query: SELECT p FROM Person p WHERE p.pMap | |
Wrong select results Hello, I got a realy strange SELECT problem. In explorer query " select p from Player p where p.confirmed==false", given me some results with p.confirmed==TRUE. And when I try to do (see image) " select p, p.confirmed from Player p where p.confirmed==false", I getting p-confirmed-true | |
Selecting random rows Hello is there way to get random rows? Functions like rand(), random(), newid() doesn't work ;/ for example: em.createQuery(" SELECT s FROM StawkaVat s ORDER BY rand()").setMaxResults(5).getResultList(); gives exception: Exception in thread "AWT-EventQueue-0" [ObjectDB 2.5.6_02] SELECT s FROM StawkaVat s == rand | |
Conditional Selection so when I use... SELECT firstName + " " + middleName + " " + lastName FROM Employee   ... an additional field. e.g. displayName . Use a method in the SELECT clause. It could be a static method | |
Embedded Entity in EmbeddedId not persisted. Error 631 at select.; issue: In case 1 transaction is committed, but select fails! * *   ... (em.createQuery(" select a from A a", A.class).getResultList()); }   | |
Performance in SELECT statement) Example query looks like : String strSelect = " SELECT e FROM TestEntity WHERE e.state.entityState IN | |
Unexpected query token 'delete' (SELECT is expected) (error 752) simple codes(see attachment), failed. gzdillon Lai Yang DELETE queries should not be run with getSingleResult ( which is for SELECT queries). Use executeUpdate instead. See this manual page . support Support | |
A nested SELECT Hello. I have a query UPDATE Look l SET l.partlySold = FALSE WHERE ( SELECT count(a) FROM l.things a WHERE a.thing.status != :status) | |
JPA Persistable Types. .NET). Therefore, it is recommended to only use explicitly specified persistable types. Serialization is disabled by default | |
Database Doctor - if the recovery file is disabled . Using the database file simultaneously by two instances | |
Index Definition and range queries: SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p WHERE p.x = 50 AND p.x = 10 But this time a full index scan is required ... for sorting results and for projection: SELECT MIN(p.x) FROM Point p WHERE p.x | |
DELETE Queries in JPA/JPQL DELETE queries provide an alternative way for deleting entity objects. Unlike SELECT queries ... 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 cannot include multiple variables and JOIN | |
Query Parameters in JPA getCountryByName( EntityManager em, String name) { TypedQuery query = em. createQuery ( " SELECT c FROM ... ( EntityManager em, String name) { TypedQuery query = em. createQuery ( " SELECT c FROM Country c ... added value to the clarity of the query string (assuming that meaningful names are selected | |
JPA Entity Fields the following query (where :d represents the Department entity): SELECT e FROM Employee e WHERE e ... of the following query: SELECT e FROM Employee e WHERE e.department = :d ORDER BY e.name The specified field ... from the inverse query results by specifying a selected key field using the MapKey annotation | |
Logical Operators in JPQL and Criteria API query retrieves countries whose population and area (both) exceed specified limits: SELECT c FROM ... The following query retrieves countries whose population or area exceeds a specified limit: SELECT c ... The following query retrieves all the countries whose population does not exceed a specified limit: SELECT | |
UPDATE SET Queries in JPA/JPQL provide an alternative way of updating entity objects. Unlike SELECT queries, which are used ... - the executeUpdate method returns the number of objects that have been modified by the query. Selective Update ... , which is essential for updating selected entity objects, is supported. For example, the following | |
Issue with DISTINCT Select It is getting more and more frustrating :( We've introduced distinct select instead of regular selection in our code (no changes else) and suddenly receive invalid identifiers in queries exceptions ... ) multiple times for different selections in the same query!! so after debugging the query returns | |
Using SELECT BETWEEN with LocalDate I am trying to query all entities whose date is between today and today + X days. The date inside the entity is a LocalDate . To do so I created the following query: .createQuery( " SELECT e FROM ... the SELECT a Date is used and not a LocalDate , so I ignored this error. Now I tried a LocalDate | |
Deletion of an entry via the table window always deletes the last entry not the selected one If I open a class in the explorer via the "Open Table Window" button, select a row by its index and prex "Del" or use right click "Delete" the last entry of the table is removed and not the selected one. If I try the same using the "Open Tree Window" it works as expected. Kevin Kevin Pfaff Thank | |
NullpointerException at a normal select When I run the following code: EntityManager em = getEm(); Customer result = null; try { logger.debug("Ident: "+ident); result = em.createQuery(" Select c from Customer c where c.identifier=:id", Customer.class).setParameter("id", ident).getSingleResult | |
selective update not working we try to optimize for our queries and tried a selective update, but in explorer it just shows query execution error: UPDATE ObjectNode o SET o.state = 5 where o.classIdentifier = '(MA)' and o.objectNameUpper = 'DMU200P2' and o.state = 0 and o.type = 1 and o.parentNode.classIdentifier | |
JPA Queries;(e.g. " SELECT c FROM Country" ). Criteria Query API Building dynamic queries with a structure ... are organized in this reference into three groups. SELECT and ORDER BY elements (including tuples): FROM clause | |
Step 2: Entity Class and Persistence Unit) and selecting New Class . Enter guest as the package name - use exactly that case ... node (in 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 | |
Java EE 6 JPA Tutorial - Eclipse Project Eclipse: Select File Import... Maven Existing Maven Projects and click Next . Select the guestbook-jee6 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 Run | |
Spring MVC JPA Tutorial - Eclipse Project the project zip file: Spring MVC JPA - Maven Project (8KB) 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 press ENTER . Select the project and click Finish | |
Step 2: Entity Class and Persistence Unit the project node (in the [Package Explorer] window), select New Source Folder ... right clicking the new source directory node (in the [Package Explorer] window) and selecting   ... the [Project Explorer]) and select New Folder. The parent folder should be resources. Enter META | |
Getting Started with JPA - NetBeans Project NetBeans: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in NetBeans: Select Run Run Main Project... (or F6 ). Click Select Main Class . | |
Getting Started with JPA - IntelliJ Project IntelliJ IDEA: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in IntelliJ IDEA: Select Run Run Main Project... (or F6 ). Click Select Main Class . | |
JPA Web App Tutorial - Eclipse Project and extract the project zip file: JPA Web App - Maven Project (6KB) 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 press ENTER . Select the project and click Finish | |
Step 1: Create a Java EE 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)  ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory | |
Step 1: Create a Web Project.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 ... and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory of the ObjectDB | |
JPA Web App Tutorial - NetBeans Project: Select File Open Project... . Select the guestbook-web directory and click Open Project . Run the project: Select Run Run Main Project... (or F6 ). Choose or define the server and click | |
Step 1: Create a Java Project We start by creating a new NetBeans Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Java Java Application and click Next . Choose a Project Name (e.g. Tutorial ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory | |
Step 7: Run the Spring Web App), selecting Run As Run on Server , selecting the Tomcat 6.0 server and clicking Finish ... Maven Jetty plugin: Right click the project node and select Run As Maven Build... Enter  | |
Step 5: Design a BIRT Report Chart In this step we will add a simple chart to the report: Open the [New Chart] dialog box by dragging a Chart from the [Palette] window and dropping it on the report design (.rptdesign) layout. In the [ Select Chart Type] tab select Tube as the chart type and click Next . In the [ Select Data | |
Java EE 6 JPA Tutorial - NetBeans Project project in NetBeans: Select File Open Project... . Select the guestbook-jee6 directory and click Open Project . Run the project: Select Run Run Main Project... (or F6 | |
Step 4: Create an ObjectDB Data Set and selecting New Data Set . Select the data source that was created in the previous step (e.g. ObjectDB ... value in a specified range: SELECT p.x as x, p.y as y FROM Point p WHERE p.x BETWEEN :low AND :high Use | |
Spring MVC JPA Tutorial - NetBeans Project: Select File Open Project... . Select the guestbook-spring directory and click Open Project . Run the project: Select Run Run Main Project... (or F6 ). Choose or define | |
Step 6: Set the Spring XML editor (by right clicking and selecting Open With Text Editor or by double click ... that file: Right click the WEB-INF node in the [Package Explorer] window, select New Other... XML | |
Step 4: Add a Servlet Class In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting ... of guests: List guestList = em.createQuery( " SELECT g FROM Guest g", Guest.class).getResultList | |
Step 3: Add a Context Listener Class] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting New ... as the class name - use exactly that case sensitive class name. Click Next and then Select | |
Step 6: Set the Spring XML clicking and selecting Edit or by double click and then moving to the XML tab in the editor window ... , select New Other... and then choose the XML category, XML Document and click Next . Enter spring | |
Step 1: Create a Maven Web Project We start by creating a new Maven web project in NetBeans: Open the [New Project] dialog box, e.g. by using File New Project... Select Maven Maven Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and select Java EE 5. Enter Maven Group Id (e.g. com.objectdb.tutorial.spring | |
Step 1: Create a Java EE 6 Web Project We start by creating a new Java EE dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select GlassFish Server Open Source Edition 3 (Java EE 6) as the Target | |
Step 3: Define an EJB Session Bean node (in the [Projects] window), selecting New Other... Java EE (or Enterprise JavaBeans) Session ... getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class | |
Step 3: Define a Spring DAO Component clicking the guest package node (in the [Projects] window under Source Packages) and selecting New ... () { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class); return |