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5

No clue how to query with collection

Hi there! Actually, what I have is something like: @Embedable class Address {     String ... null). So I want something like this: SELECT c, a FROM Customer INNER JOIN c.addresses ORDER BY ... Adam Maybe something like: SELECT c, a FROM Customer LEFT JOIN c.addresses a WHERE a IS NULL OR
5

Get the last occurence of a list attribut

on a query that return all the last "PULabel" of every RO object. I have written someting like ... But it's look like it's not a correct query, the compiler does not like the parentheses
5

Group by date / time

. Each entity has it's own field that holds java.lang.Date. There is no function like YEAR(), MONTH() or DAY() in ODB. So, how to build queries similar to something like this: SELECT COUNT(id) FROM ... something like this: SELECT COUNT(id) FROM stats WHERE YEAR(record_date) = 2009 GROUP BY DATE
5

How to define database structure and insert some initial objects from scratch

need initial structure like tables, but how can we populate some "tables" with initial data from a script? In SQL world we have scripts like "insert into..." - Can we use main objectdb.jar library as jdbc driver for ETL software like Kettle? How about migrating data from another database
5

EntityManager JPA or JDO impl and different behavior

Hi, I have an issue with the EntityManager. My persistance XML looks like: <?xml version="1.0 ... objectdb 2.3.4_03). I had to load them manually in the transaction due to lack of time but would like ... of calls like: AttributeName EQUALS method called for <attributename name="null" values="" id="11
5

composite index not used in query

List<ObjectNode> objectsInCharge = new ArrayList<ObjectNode>(); on running a query like select ... = 0 and a.subType = 1) and (a.objectsInCharge.objectNameUpper like '%CAM%') Query Plan ... that satisfy: like(v$1.objectNameUpper,'%CAM%'). Step 3: Apply selection
5

Duplicate a table

Hello, I would like to know if it's possible to copy the content of a table representing one class of object to another table whithout having to use java object (no object instantiation) ? In fact, I would like to execute a native query like "select * into T0 from T1" My purpose is to backup
5

Embedding ObjectDB on server application

.java:615) java.lang.Thread.run(Thread.java:722) Flying Banana Jiacong Xu It looks like a classpath ... up with a workaround and it's now working! Thanks :) Flying Banana Jiacong Xu It seems like I have a smiliar ... to my Project. Eclipse does not show any errors and it looks like it finds all classes (autocomplete
1

Threaded Test - Failed to commit transaction: Unexpected internal exception

for the quick response. I'm also unable to recreate the exception using the new build so it looks like ... pace and completes ok. However, in the real case I'd like the consumer to read from the "queue" database based on a priority and creation time. The query looks like: SELECT p FROM IdPoint p ORDER by
1

ArrayIndexOutOfBounds with Critera API and function call

. What we have is something like (pseudo code) class TestEntity { public Integer getAge ... :] at java.lang.Thread.run(Thread.java:680) [classes.jar:1.6.0_37] The expression is created like ... hierarchy like class TestEntity_1 { public Integer getAge() { return 100; } }; class

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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