ado.net
Entity Framework 4 Collection to Binary Column
one of my entities contains a collection of objects i would like to persist to a binary column in the database and get populated on fetching.开发者_运维知识库 is this supported with EF or do i need to[详细]
2023-04-10 18:41 分类：问答c# DbSet - Internal object association cannot be got
I have the same problem of 开发者_StackOverflowthis topic. but on the association between entities.[详细]
2023-04-10 18:24 分类：问答Open more than one DataReader on a single OleDbConnection
I am using IBM OLE DB Provider for connecting to DB2. I can open more than one DataReader on a single OleDbConnection.Does this provider implicitly opens an additional connection for each DataReader.[详细]
2023-04-10 18:09 分类：问答Using SQLite ADO.Net Provider Need to Put GUID Directly Into Query's Where Clause Without Use of a Parameter
Is there anyway to just have the GUID be part of the SQL Query itself without using a parameter? Let me explain exactly what I am trying to do and why. I am working with an existing application that u[详细]
2023-04-10 15:59 分类：问答Method improvement on data access via ADO.NET [closed]
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a[详细]
2023-04-10 08:29 分类：问答How to know if a record was deleted using c#
I have the below code, in which for every serialnumber I search in tblSerials table and delete it from there, but the thing is that, the record may or may not be there, so I need to know if the record[详细]
2023-04-10 07:24 分类：问答Using Microsoft.Practices.EnterpriseLibrary.Data IResultSetMapper<T>
Instead of rolling my own ADO.Net helper classes, I\'ve decided to give the Microsoft.Practices.EnterpriseLibrary a spin. Looking over the documentation, and the sample projects, I\'m really liking wh[详细]
2023-04-10 01:02 分类：问答Expected database model is inconsistent in real-time
In this question, I was facing an issue where I was writing an update for a deployed application to bring the database up to date with the newer version we are deploying. Basic outline as follows:[详细]
2023-04-09 16:55 分类：问答Update with column name by parameter
How can I pass a columns name by parameter, follow an example DataTable dt = new DataTable(); // Here I fill my datatable[详细]
2023-04-09 16:50 分类：问答How do I pass a connection string to the constructor of a database-first DBContext with Entity Framework 4.1?
For various reasons I would like to not store the connection string for my Entity Framework DB model in one of the various .config files.(I am using the latest and greatest DBContext API with the new[详细]
2023-04-09 14:47 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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