I am getting the following error whenever I am trying to open the db_name.mdf file:
The database '{path}\db_name.MDF' cannot be opened because it is version 706. This server supports version 662 and earlier. A downgrade path is not supported. Could not open new database 'db_name.MDF'. CREATE DATABASE is aborted. An attempt to attach an auto-named database for file {$path}\db_name.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Connection string as follows:
<add name="PasswordDBContext" connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\db_name.mdf;Integrated Security=True" providerName="System.Data.SqlClient" />
I am working on a asp.net mvc 4 project within visual studio.
Any help to get the issue resolved are very much appreciated. Thanks.
LocalDB is a new feature introduced in SQL 2012 Express - you will need to install SQL 2012 Express LocalDb if you need to use an MDF in this manner.
Krzysztof Kozielczyk has blogged several entries around on LocalDB here - take note especially of the issues when running under 'Full IIS'.
IMO using LocalDb with ASP.NET is for a developer machine config only - i.e. when you are ready to deploy your (code first?) MVC 4 app to a testing or production environment, you should consider attaching ASPNETDB.MDF more permanently to a SQL Instance.
You cannot attach a MVC 4 localDB in SQL Server 2012 Management Studio. You'll need to connect directly.
Open up SQL Server 2012 Management Studio. You can download a free express version here:
http://www.microsoft.com/en-us/download/details.aspx?id=29062
During installation make sure you check the localDB component to be installed.
After installation, open Management Studio and the "Connect to Server" dialog will appear.
Enter (LocalDb)\v11.0 in the Server Name textbox. Use windows authentication and click connect.
Your asp database will show in the manager. You can then script it out to what ever you want and edit the DB and make the appropriate changes to your connection strings in your web config.
Remember that if you're using Code First, which in VS 2013's MVC Internet template uses, you'll need to check your db creation code in your app start folder.
LocalDB was created so you can create data driven web applications without the overhead of a full version of SQL server running on your development machine. When you deploy to a production server, migrate to a full SQL Server instance.
Hope this helps :)
Set your database connection string to your Locally installed DB is as below.
Web.config :
<add name="ContextName" connectionString="Data Source=ServerName;Initial Catalog=DBCatalogName;Integrated Security=True;MultipleActiveResultSets=True;App=EntityFramework"
providerName="System.Data.SqlClient" />
Related
On my PC, I messed up the default installation of the SQL Server that comes with VS22.
I managed to install SQL Server manually again, but I have to write a database class library using EF Core.
For that I have a connection string as follows:
Data Source=(localdb)\\MSSQLLOCALDB;Initial Catalog=TestDB;Integrated Security=True
I've been told that EF will create the database as needed after the name given in the connection string.
This works fine on my new laptop on which I did not touch the SQL Server. On my PC it does not work though.
What do I have to do to get the "default" installation of the SQL Server?
You can install LocalDB through the Visual Studio Installer, as part of the Data Storage and Processing workload, the ASP.NET and web development workload, or as an individual component.
The steps in Visual Studio Installer are as follows:
First select Modity, then select SQL Server Express LocalDB in Installation details. Hope it helps you.
I am creating an on-line shop project using .NET Core 3.0 and Entity Framework Core. I have set up the applicationContextDb and the connection string in appSettings.json.
The application works just fine adding products, and these products show up in my localdb in VS2019. I need it to connect to my localhost SQL Server instance in SSMS as it will be easier in the future to manage the online shop and see the data, but I don't know how to do that and I cannot find much information about this out there. Does anyone have an idea on how to do this?
I have tried to change the name from localdb to localhost, and obviously changing it too in the connection string, but it throws an error saying that it cannot find the network path.
To connect to a local default SQL Server instance (which I agree is easier in the long run than localDB), use a connection string like:
"Server=localhost;database=YourDatabaseName;Integrated Security=true"
A named instance like
"Server=localhost\SqlExpress;database=YourDatabaseName;Integrated Security=true"
Of course you have to install the SQL Server instance before this will work. You can install using the Developer Edition or Express Edition available for free download here.
After pointing to the new instance, you'll need to run your Migrations, or run myDbContext.Database.EnsureCreated() to generate the DDL for your EF model. Or copy the .mdf/.ldf into your SQL Server's data directory and Attach the database in SSMS.
I am trying to attach database file in SQL Server. I am getting the below error. The same error I am getting while trying to attach database from Visual Studio. I am using Visual Studio 2013 and SQL Server 2014 Management Studio.
My connection string:
<add name="Sample"
connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users\M\Desktop\SampleApplication1\App_Data\Sample.mdf;Initial Catalog=SampleDBContext;Integrated Security=True;"
providerName="System.Data.SqlClient"/>
Error:
The database 'sample' cannot be opened because it is version 851. This server supports version 782 and earlier. A downgrade path is not supported. Could not open new database 'Sample'. CREATE DATABASE is aborted.
and here is the default SQL Server instance is set in Visual Studio.
You CANNOT do this - you cannot attach/detach or backup/restore a database from a newer version of SQL Server down to an older version - the internal file structures are just too different to support backwards compatibility. Obviously, your database is from a SQL Server 2016 pre-release (internal version: 852) while the engine you're trying to attach it to is SQL Server 2014 (internal version: 782).
You can either get around this problem by
using the same version of SQL Server on all your machines - then you can easily backup/restore databases between instances
otherwise you can create the database scripts for both structure (tables, view, stored procedures etc.) and for contents (the actual data contained in the tables) either in SQL Server Management Studio (Tasks > Generate Scripts) or using a third-party tool
or you can use a third-party tool like Red-Gate's SQL Compare and SQL Data Compare to do "diffing" between your source and target, generate update scripts from those differences, and then execute those scripts on the target platform; this works across different SQL Server versions.
I was having this issue while following an old Pluralsight MVC4 tutorial.
The course was asking me to use v11.0, but I was running a 2015 version. I opened up the SQL Server Object Explorer and looked at the different versions of LocalDB, and grabbed the name of the one that had my database in it (right-click "Rename").
I then pasted the name in the Add Connection window, under Server Name. Clicked Refresh, and voila, there it was. Hope this helps anyone out there.
This Microsoft link may resolve your problem if you are still running Visual Studio 2015 and seeing this error - the answer above is part of the answer. (megamaiku) The "generate scripts" answer from Mark_S will work assuming you have no trouble mounting/accessing the database. If I recall the SQL Compare is rather expensive but that is a great solution, again, assuming you can mount the database created by your Visual Studio application.
A similar issue arises with Visual Studio 2017 and SQL Server 2017 except you see 852/856 as the version problem.
After moving the database, change your web.config connectionString to match your server; (localdb)\MSSQLLocalDB or possibly localhost depending on what you are running
(SQL 2016/2017/2019).
<add name="DefaultConnection"
connectionString="Data Source=(localdb)\MSSQLLocalDB;myDB.mdf;Initial Catalog=MyDBName;Integrated Security=True"
providerName="System.Data.SqlClient"/>
OR
<add name="DefaultConnection"
connectionString="Data Source=localhost;myDB.mdf;Initial Catalog=MyDBName;Integrated Security=True"
providerName="System.Data.SqlClient"/>
An old article explains how to pull the pieces from the database one at a time and if you're lucky and it still works (it did a decade ago - separate and then put the parts back together), you may be able to get what you need - a newer version restored to an older version. I am unable to find a reference to the trick but rather than scripting your entire database, there is a way to restore down by restoring the header (restore headeronly), then once the header is in place on your server and the permissions and so on are matching, you can restore that database from the newer backup.
However, the generate script is less convoluted and more popular.
I don't know how can I deploy my local Umbraco 7.2 local website to a normal server (Windows 2012 VPS). I know I need to copy all files to the server, but I can't figure out how can I copy the database. I download an SQL Management Studio 2012, but I don't know the access details, because when I installed the site to my localhost, the installer didn't ask me. Maybe on thing, as I remember, the DB type. It was SQL CE.
Does anybody know how can I access to the local and server database? Whats is Umbraco database name?
Is there any else configuration?
Maybe an easier option to deploy?
You can:
Open the database \App_Data\Umbraco.sdf see How do you open an SDF file (SQL Server Compact Edition)? (it is not in new SQL Management Studio versions) and do your database things to deploy.
Copy the SQL CE default \App_Data\Umbraco.sdf
Create a package
Using tools like Courier
And see the web.config for your connectionString:
<connectionStrings>
<remove name="umbracoDbDSN" />
<add name="umbracoDbDSN" connectionString="Data Source=|DataDirectory|\Umbraco.sdf;Flush Interval=1;" providerName="System.Data.SqlServerCe.4.0" />
<!-- Important: If you're upgrading Umbraco, do not clear the connection string / provider name during your web.config merge. -->
</connectionStrings>
I generated a database through entity framework. Here is the connection string:
<add name="AnnouncementsContainer" connectionString="metadata=res://*/Models.Announcements.csdl|res://*/Models.Announcements.ssdl|res://*/Models.Announcements.msl;provider=System.Data.SqlClient;provider connection string="data source=.\SQLEXPRESS;attachdbfilename=|DataDirectory|\Database.mdf;integrated security=True;user instance=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
This uses a file called Database.mdf. The application runs fine but there are two issues that I am having to deal with right now:
Database Updates: Whenever I update the database using raw sql code I have to manually host this file myself in SQL Server Management Studio (I then detach the database and leave the rest to visual studio). The server appears in the Visual Studio server explorer but Visual Studio cannot connect to it to run SQL code. Where is Visual Studio hosting this file so that the application can get to the database but the IDE can't?
Profiling: I have created some stored procedures for entity framework and mapped them to the entities. It would be really nice to see if these entities are actually being executed. How can I see the stored procedures executing with a tool like SQL Profiler?
Here are some screenshots in case what I am saying isn't clear:
SQL Server Management Studio:
Visual Studio Server Explorer:
As you see your connectionstring contains this part:
data source=.\SQLEXPRESS;attachdbfilename=|DataDirectory|\Database.mdf;
This means that it will take the file Database.mdf stored in your |DataDirectory| (which defaults to App_Data folder in web projects) and it will attach it dinamically to the provided sqlexpress instance (in this case .\sqlexpress which means the sqlexpress instance running on localhost .\ named sqlexpress.