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Entity Framework: Automatic migration failed on huge DB

I am using EF 6.1.1, and DB has three million records and migration has to change the precision of a coulumn of type decimal. And the migration timeout window set to max value, CommandTimeout = ...
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1answer
418 views

SSIS Package Execution From Visual Studio Unit Test

Hello I am attempting to run a test which contains the following code: string pkgLocation; Package pkg; Application app; DTSExecResult pkgResults; ...
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0answers
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How to troubleshoot “client driver has sent multiple requests while the session is in single-user mode”

I'm working with a developer who is struggling to stop the following error: The server will drop the connection, because the client driver has sent multiple requests while the session is in ...
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0answers
472 views

Rolling Back Stored Procedures in Entity Framework

I currently working a on project that operates within a transaction in entity framework. Before now all of the changes were made using a DataContext. I need to add a call to a stored procedure using ...
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0answers
2k views

SQL Server intermittent error 40 Could not open a connection to SQL Server or The network path was not found

I am getting intermittent errors as per the below stack trace. I am using C# Entity Framework with SQL Server 2012 enterprise running on a separate server computer. I can connect and query the DB ...
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0answers
397 views

Can someone please give me hints on normalizing this database and any other helpful hints

I am using Entity Framework 5 to work with this database but I am getting issues with how tblTalkers and tblChatSessions are being mapped in the entity model when imported into Visual Studio. Please ...
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0answers
51 views

Composite primary key in Multi-tenant sql server database

I'm building a multi-tenant app (Single database, single schema) using Asp Web Api, Entity Framework and Sql Server/Azure database. This app will be used by 1000-5000 customers. All the table will ...
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22 views

Multiple M-M relationships between tables

I am working on the design of a new database. In this database, we track equipment corrective actions (repair). We have three personnel fields in each Equipment Corrective Action record: initiated ...
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54 views

Are these One-to-Zero-or-One relationship correct?

I'm working with SQL Server 2012 and I have these three tables: CREATE TABLE [dbo].[CODES] ( [CODE] [nvarchar](20) NOT NULL, [ ... ] , CONSTRAINT [PK_CODES] PRIMARY KEY CLUSTERED ( ...
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22 views

Is there a standard direction to read cardinality relationships in?

I'm reading some documentation, and before getting egg on my face for questioning it, I'd like to check the standard way of reading UML cardinality relationships. The docs I have look like the image ...
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13 views

Identification of other entities.

Given the following scenario, what three other entities (and their attributes) would be of importance to this model? SCENARIO: The transport authority in Jamaica has recently added train ...
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159 views

SQL Server and Entity Framework

We are currently experiencing a problem with Entity Framework which generates a sp_executesql statement. This statement is below. The statement runs fine in SQL Server however through the front end ...