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9

Updating Entities

query manual page: Updating entity objects in the database using an UPDATE query may be slightly ... of JPA. See this manual page. You should have read it in the manual rather than finding it by exploring ... (and is noted in the manual you linked) - objects within two separate EntityManagers are in fact distinct
7

Online Backup in client-server mode

should be created. See also the ObjectDB manual. support Support Hello, Thank You, I missed that part in the ObjectDB manual. Indeed we've had the File as the parameter. But now it seems, that the Absolute path ... described in the manual: "When a string is specified as a value for the target parameter
7

ObjectDB CRUD Examples

CRUD operations are explained and demonstrated in these manual pages. We do not have specific ... to start... ThreaT Ashton Hogan Please consider reading the entire manual. It would probably ... the tutorials, which are small but full application examples. But these tutorials cannot replace the manual, which has to be read. support Support
7

Query problem after transaction commit

> searchGoods: end printing result 31> [start database explorer on server manually] 32> searchGoods: start ... searchGoods: end printing result [start database explorer on server manually] searchGoods: start ... explorer on server manually] searchGoods: start query SELECT u FROM Goods u where u._code like :code
7

Where Does ObjectDB Block/Lock?

() if optimistic=true? 5) ObjectDB 1.0 Manual (Support > Knowledge Base > ObjectDB 1.0 Manual > 5. JDO ... (multiThreaded=true) makes all my requests sequential and therefore ObjectDB 1.0 Manual's statement suggests
7

Is there a function of "drop table" or "delete from table"?

").executeUpdate(); This is implemented since version 2.2.4 but the manual has not been updated ... . Yes, you'd better to put it into manual, since "drop table" is often in debugging. I can not find ... thread and the explanation of the ;drop connection url parameter in the manual
7

Compile time enhancement using build.xml of a Netbeans web application

and whole project compilation ? The ObjectDB 2.3 manual gives the following tip: <java classname="com ... -post-compile and -post-compile-single. I do not see yet how to relate the manual's example ... feature, so I want to try compile time enhancement. Besides, as the ObjectDB manual says: Enhancement by
6

Removing objects where ManyToMany relationships exist

a number of null pointers in the Sets? Would I need to manually go through all Entities in the database ... it from the Set manually? Hope not... Thanks for your help! Best regards, Benjamin lorenz2304 Benjamin
6

connection pooling

how do you handle connection pooling? I don't understand how to open and close connection, or reconnect. I've referenced the manual here, but where does this go: The <connection> element <connection ... them when it creates new EntityManager instances. See this manual page for more information on working
1

queries more than 10 times slower using 2.8.1 versus 2.7.6

="debug" />) you can see all the top query plans and try alternative query plans manually using hints, or see which query plan was used in older version of ObjectDB, such as 2.7.6, and adopt it manually ... . However, after finding the best query (manually) you can use as a hint any string in the description

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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