3
votes
1answer
98 views

Is this a step in the right direction for normalization? SQL 'inheritance' and Many-to-Many relationships

Context: So, this is kind of a compound question, but they go together, and definitely wouldn't make sense split up into separate questions. I've been working on a new database for what will end up ...
1
vote
0answers
167 views

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 ...
1
vote
2answers
1k views

What could cause an auto increment primary key to skip numbers?

I have a table created with the following T-SQL: CREATE TABLE [dbo].[TableName]( [id] [int] IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED ( [id] ASC )WITH (PAD_INDEX = OFF, ...
0
votes
0answers
100 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 ...
4
votes
2answers
215 views

Why can't I view the SQL Server database created by a web application?

I have an ASP.NET MVC web application deployed to IIS on a Windows Server 2012 machine. When the application first starts, it will create the database and tables it needs if necessary through Entity ...
1
vote
0answers
651 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 ...
3
votes
2answers
1k views

EF Code First uses nvarchar(max) for all strings. Will this hurt query performance?

I have some databases created using Entity Framework Code First; the apps are working and in general I'm pretty happy with what Code First lets me do. I am a programmer first, and a DBA second, by ...
1
vote
2answers
652 views

Reducing size of image returned by view

We are storing a list of images in a table in an image column. These are stored as their raw image size so they can be viewed in their details at full resolution. The problem I have is I want to show ...
1
vote
2answers
199 views

Replicating schema changes between production and development databases [duplicate]

Not too sure if this would be a good and proper way to go about things, so I apologize if I'm kind of far off. Currently running Microsoft SQL Server 2005, and in this we have a database for a ...
4
votes
1answer
129 views

Clear schema from database without dropping it

I'm working on a school project where I have a SQL Server with a database for my team. I already imported a local database created with Entity Framework. Now the model has changed, table properties ...
1
vote
2answers
566 views

Microsoft SQL Server how can i detach localdb to run on any computer

I am working on a personal project and have implemented a database system using the Entity Framework code first tutorial on msdn, link below, http://msdn.microsoft.com/en-gb/data/jj193542 I am ...
1
vote
2answers
354 views

With MS SQL Server are the generated constraint names predictable?

When you create your primary key, and foreign key constraints in a CREATE TABLE script, there are named constraints that are created, such as FK__RecentlyVi__ScId__2764765D ... are these constraints ...
2
votes
1answer
224 views

Schema for 1 <-> 0..1(+), many related but only one primary

Using tools available in SQL Server 2008 and Entity Framework, what is a solid way to represent a one-to-many relationship, where there is an underlying unique relation that I need to enforce? My ...
3
votes
3answers
2k views

NULLs in a composite primary key - SQL Server

I'm trying to work out the best way of creating SQL Server primary keys, foreign keys and constraints to accurately represent my data model in LINQ / Entity Data Objects. Let's assume - for the ...
2
votes
1answer
468 views

Will Entity Framework and/or Linq-To-SQL queries show up as “Adhoc Queries” in SSMS' “Server Dashboard” Report?

Its pretty much all in the title. I have a SQL Server which is showing that 90%+ of CPU Usage and Logical IO Performed is due to "Adhoc Queries" The rest rest of the usage shows up under the actual DB ...
4
votes
2answers
1k views

Two relationships to same table

i have one transaction table, each transaction has 5-6 contacts involved. each contact has the same fields like name, address, cell, email etc. So the best thing I guess is to use the same contact ...
5
votes
3answers
1k views

Is the ADO.NET Entity Framework known for generating poorly performing queries?

This question is inspired by the comment posted to the latest ServerFault blog post: Are you guys still using LINQ to SQL? I know I can use SQL Server Profiler and/or the ToTraceString method to ...