db4o

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How to use the distinct on databases DB4O

the data like this: file1file2 aaaamilk aaaared bbbbbox bbbbpen ccccrose i want get result like this: file1: aaaa[详细]

2022-12-24 06:19 分类：问答
Using db4o with multiple application instances under medium trust

I recently stumbled over the object database engine db4o which I think looks really interesting. I would like to use it in an ASP.NET MVC application that will be deployed to a shared hosting environm[详细]

2022-12-24 03:20 分类：问答
How to use db4o IObjectContainer in a web application ? (Container lifetime ?)

I am evaluating db4o for persistence for a ASP .NET MVC project. I am wondering how I should use the IObjectContainer in a web context with regards to object lifetime. As I see it, I can do one of th[详细]

2022-12-23 11:50 分类：问答
Do you need to pay to use db4o for Android in commercial software? [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]

2022-12-23 06:01 分类：问答
Is db4o object manager enterprise free? Where can I download it? Is it a standalone application?

As per the title I have three parts to this question... Is db4o object manager enterprise free? -I saw a blog post about it being free.[详细]

2022-12-23 05:59 分类：问答
Subsonic and DB4O

I was recently reading Rob Conery\'s post about DB4开发者_C百科O and it was very interesting.My question is really concerned with class generation and future use of Subsonic and DB4O.[详细]

2022-12-22 08:40 分类：问答
Problem with db4o (java) when running a query

I\'m glancing through parts of the official db4o tutorial, and I\'m trying to make a modification to the code they give you for running native queries:[详细]

2022-12-22 06:32 分类：问答
How to store objects created in IronPython to object databases

I\'d like to use object database to persist some classes created in IronPython. The database is db4o for .NET 2.0 (downloaded today). The code looks like this:[详细]

2022-12-21 23:40 分类：问答
Prevent orphaned objects in DB4O when updating fields

I want to store Person objects in DB4O. The Person Location field can be changed over time. So I retrieve a person from the DB and call a method to set the location field to a new Locati开发者_运维知识[详细]

2022-12-21 18:52 分类：问答
WPF DataGrid issue with db40

I am using the following code to populate a wpf datagrid with items in my db4o OODB: IObjectContainer db = Db4oEmbedded.OpenFile(Db4oEmbedded.NewConfiguration(), \"C:\\Dev\\ContractKeeper\\Database\\[详细]

2022-12-21 11:26 分类：问答