I am running desktop app that uses mdf file on local path.What if I want to do is that this mdf file should be placed over a network shared folder but network is using Domains and we need password to connect to that folder.Server is running windows Server and dont know if it has installed SQL Express or not.
Q
1-> do server needs to have SQL server Express.
2-> If I publish that project then use on multiple clients that may not have Visual Studio and sql server express but will have Dot Net framework. Will that Database Using application will work
1 - You don't have to use SQL Server Express, but its better than sharing a folder and use a mdf file over network using file sharing, and more trustable.
If your application will be used by one user at time only, you can share a folder on remote server, put the mdf file in there and give read/write access permission on share to the user running your desktop app.
If several users will run the app at the same time and access the database, it won't work because windows will probably lock the mdf file (and if not, your database will get corrupt). Then, you will have to use SQL Server Express and no folder sharing at all.
2 - It will work as long as your clients have SQL Compact Edition, that is installed with the .net framework by default, so you won't have any problems. By the way, if you are planning to all your customers using the same database, all the concerns I answered in question 1 applies here. If multiple users have to connect to the same db file at the same file, you'll have to: 1 - setup a SQL Server Express on client or 2 - publish your sql server express so it can be accessible from outside your network and configure your custumers desktop app to access this server.
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I just created my Microsoft SQL Server Database on my own laptop and then made a backup file of it.
Then inside my Windows Host (Which I've bought from 1and1) I uploaded the .back file and then imported it to the newly made database.
Up to here everything was good. But when I try to connect to my database from my Visual Studio's ADO.NET Entity Data Model Wizard's Connection Settings window I get the following error:
I searched a lot online but unfortunately all solutions were for Windows Server or Local Computers While my Database is stored on a Windows host.
My connection settings can be seen in the image below:
I also called 1and1 support to ask whether my database's remote port is open or not, but the client couldn't get what I mean.
experiencing an odd issue I've yet to see on any of my other machines. This is a fresh laptop, so I have installed VS 2017, SQL Server 2017 express, then created a quick sample project using one of the stock .net core projects (with authentication stored "in-app"). This, of course, creates some basic entity migrations and DB context.
When I run I'm getting access denied errors. So, of course, I checked SQL service default user which is an admin. I then run basic migration commands and receive this
So, of course, my next step was to double check the default data locations of SQL since it appears to be trying to store it in C:\Users root?! I have never had to bother touching this during install, but worth a look. And of course, they are as I expected in their default locations of C:\Program Files\ etc
Rapidly running out of things to try at this point - and considering this is a fresh windows 10 install, with bare-bones vs 2017 and SQL express 2017 it feels a lot like a bug here. Everything is a default if you were to File -> New Project -> .NET Core Web Application with INdividual accounts.
Anyone have any thoughts or things worth trying? Why is it trying to store my DB in C:\Users? Connection string -
"DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=aspnet-WebApplication3-53bc9b9d-9d6a-45d4-8429-2a2761773502;Trusted_Connection=True;MultipleActiveResultSets=true"
Thanks!
-Marc
You are not using SQL Server Express.
The local string says (localdb), which is the SQL Server engine running in user space. This is a big difference. Usually SQL Server or SQL Server express runs as service. (localdb) is not an alias for localhost (loopback address). It's a special name for a minified version of SQL Server which runs in user space.
When SQL Server runs as a service, it needs to have read/write permissions to the folder it writes. This is usually NOT THE CASE when the file is located within the User folder.
LocalDB on the other side, is always started when you start debugging your application and runs with the permissions of the user. So if your file was created by an admin user or outside of a directory you have write permissions.
Also, when you mount a database to SQL Server (Express), then the file is protected from write access to other applications, so LocalDB can't open it neither.
LocalDB is made for development to offer most of the SQL Server features but without all the hard setup and permanently running service in the background.
Essentially you have two options:
Use the SQL Server connection string as #TanvirArjel suggested
Detach the database from SQL Server express, copy it to your user folder (C:\Users\<myusername>\) and then correct the path to it
Then it should just work.
Notice that LocalDB is not meant to run in production, so you will likely experience issues when trying to run it in IIS (IIS Express and Console applications and WPF work fine).
Reasons for LocalDb not working with IIS is because ASP.NET (Core) applications within IIS run with a special user, but LocalDbs are always created in the users profile folder. Now, the accounts used by IIS don't have a profile and can't create the database and can't access any database outside (since localDbs are stored in user folder only the user who created it has access to it).
Here some source on it and the reasons behind it.
Using LocalDb with IIS
Write the connection string as follows.Hope it will work...
"DefaultConnection": "Server=YourPcName\\SQLExpressInstanceName;Database=aspnet-WebApplication3-53bc9b9d-9d6a-45d4-8429-2a2761773502;Trusted_Connection=True;MultipleActiveResultSets=true"
Here's the scenario:
MVC web project
Three MS SQL Server database projects
One of the databases must be populated with lookup tables
Other tables are user data and don't need data uploading
GoDaddy hosting
Visual Studio 2013
I'd like to deploy everything (web project, sql schemas, reference data) to GoDaddy in one fell swoop, but they appear to only offer FTP uploading. When using FTP in the Web Publishing Wizard, it says "Database preview not supported for this method" which I'm taking "method" to mean FTP. I can publish the web project fine in FTP, but of course without the databases the web application generates errors.
So here are my questions
There is a "Web Deploy" publish method listed in the wizard, but GoDaddy has no information on how to set this up. Can this be used with GoDaddy and will it publish DBs also?
How does one configure the project to use the local SQL Server when running on localhost, but when deployed it uses the GoDaddy SQL Servers?
Can the data in the local DB be uploaded as part of the publishing wizard process, or is SQL Server Management Studio the tool of choice?
Thanks!
I don't believe GoDaddy supports WebDeploy. They didn't when I left their service a few years ago. You can talk to them to confirm whether this has changed.
This is the role of Web.Config Transforms. For an intro to the topic, see here; the article is a little out of date and doesn't mention one of the most useful points - you can add transforms for each publish profile, so they're applied according to your publish settings.
You probably can't upload the local DB file. In almost every hosting situation, the SQL server and the web server are two separate machines, and don't share any files (corollary: the web server doesn't have the SQL service installed). One workaround you can try is to publish the DB directly from your own machine. That is, if you can connect to the DB from your machine, you can do a Web Deploy publish to your own machine but it will send the SQL changes to your GoDaddy DB server.
A more advanced workaround for #3:
Set up your FTP publishing settings for your files
Figure out how to publish your DB through WebDeploy only/from the command line (you can refer to here for a sample using WebDeploy from the command line; note this is going from GoDaddy -> Local, but it's trivial to turn it around)
Customize the web publish pipeline to insert an MSBuild target to execute your WebDeploy command line (see here for an example of modifying the pipeline; you can add the target directly in your .pubxml file if you're not intending to use it for multiple projects).
This will give you a single publish profile which will separately publish your files (via FTP) and your DB (via WebDeploy).
I deployed a simple ASP.net MVC application on IIS (7.5 under win 2k8 R2 64 bit), and it created its databases (ApplicationData and the second one with my own data) when I started using the app.
The databases (.mdf and .ldf files) were created inside App_Data folder.
Application uses entity framework code first approach. I had to change the app pool's identity to Network Service to get the webpage working. I also had to manually create this App_Data directory and assign permissions for Network Service user to modify it's contents.
Now the problem I got is that I can't see those databases in Management Studio (got SQL server 2012 express with advanced services installed). I can attach them manually if not using the webpage for a longer time, otherwise the .mdf files are locked by sqlservr.exe process of Network Service user.
All the time I got two simultaneously running sqlservr processes. One is run by MSSQLsomething user and the second one by Network Service. However, I got only one instance of SQL server installed (I'm 100% sure of it).
Could anyone explain me how is that possible that Management Studio cannot see those databases even at the moment they're being used (locked by sqlservr.exe process)?
This is because the database is hosted in User Instance Mode, and therefore not actually attached to the 'official' database server.
In that article you'll see that this is enabled using User Instance=true; in the connection string. To switch it off you specify User Instance=false;.
While installing SQL Server 2005, I unknowingly uninstalled the existing SQL Express(I dont know 2005/2008) , but then I installed sql express 2005. But now the membership api is not able to connect to the sql express database. When I run my application with the Visual Studio 2008 , and try to login into my application I am getting the following error ,
"Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed."
SQLExpress database file auto-creation error:
The connection string specifies a local Sql Server Express instance using a database location within the applications App_Data directory. The provider attempted to automatically create the application services database because the provider determined that the database does not exist. The following configuration requirements are necessary to successfully check for existence of the application services database and automatically create the application services database:
If the applications App_Data directory does not already exist, the web server account must have read and write access to the applications directory. This is necessary because the web server account will automatically create the App_Data directory if it does not already exist.
If the applications App_Data directory already exists, the web server account only requires read and write access to the applications App_Data directory. This is necessary because the web server account will attempt to verify that the Sql Server Express database already exists within the applications App_Data directory. Revoking read access on the App_Data directory from the web server account will prevent the provider from correctly determining if the Sql Server Express database already exists. This will cause an error when the provider attempts to create a duplicate of an already existing database. Write access is required because the web server accounts credentials are used when creating the new database.
Sql Server Express must be installed on the machine.
The process identity for the web server account must have a local user profile. See the readme document for details on how to create a local user profile for both machine and domain accounts.
Actually I am using ASP.NET MVC, and by default it has the membership functionality in the web application template, and that too is not working.
you need to change the settings of the sql server express service - refer here
Try deleting the SQLExpress directory which should be at C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Microsoft SQL Server Data\SQLEXPRESS directory.
Then restart your machine.