Why does it always outputs empty even when the database is not?...

Defragmenting very large db4o database files...

OutOfMemoryError caused when db4o database has 15000+ objects...

Why i get DatabaseClosedException(DB4o) trying to insert/delete/show 2 times in one run?...

Can anyone think of some good reasons *not* to use an Object-Oriented DBMS to back a website?...

Using Windows Integrated Authentication when connecting to db4o in .net?...

How to design many-to-many relationships in an object database?...

db4o issue with graph of objects...

How can I control cache of the DB4O...

Using an Object Oriented Database (db4o) for a medium scale application...

Sorting on number field db4o Android...

Loop for comparing all the objects of two lists...

db4o: how can we get the data for only one object?...

db4o, how to update an object if a field was added?...

Is NoSQL the best option for this specific database problem...

Implement a relation using db4o...

use lib db4o on android studio...

DB4O: limit a query by range...

ClassCastException in DataNucleus DAO object when persisting/retrieving an Object using JDO...

db4o on Android 4.4.+: storing an object fails because cannot cast long to integer...

db4o Transparent Persistence Not Working...

C# password protect an embedded db4o database...

Java Class Objects Encryption/Decryption and object database...

Is db4o Java 8 compatible?...

db4o experiences?...

c# db4o checking for the right database file...

db4o: compacting / shrinking...

Android: DB4O Problems...

db4o - weird characters when retrieving objects...

db4o activatablelist vs wpf observablecollection...