I am using Visual Studio 2012 working on a web application, a registration page. I have installed SQL Server 2008 Express and done the configuration but still when when I try to add a SQL Server database file in the project, I get an error
Connection to SQL Server Database file (.mdf) requires SQL Server 2005 or SQL Server 2008 Express to be installed and running on you local computer
Please help I am stuck here.
You need to install the LocalDB or to change your connection string to use the SQL server you have installed, it seems like you are trying to use a MDF file.
Related
I'm trying to understanding LocalDB by reading MSDN: SQL Server 2016 Express LocalDB and MSDN: SQL Server Express LocalDB and SQL Server Express and a number of SO posts including confusion about SQL Server Express and localdb, I still cannot understand what is LocalDB. I understand and have used SQL Server Express and SQL Server CE.
Questions:
LocalDB...the necessary SQL Server infrastructure is automatically
created and started
My understanding is that, if using LocalDB to handle an application's database, neither the developer nor the client machine where the application is deployed needs to install the heavy SQL Server Express, but just need to install the lighter LocalDB. How, then, without SQL Server Express install can localDB "create(d) and start(ed)" SQL Server? If localDB
... once installed, LocalDB is an instance of SQL Server Express that can create and open SQL Server databases. The system database files for the database are stored in the users' local AppData path which is normally hidden.
If developer or client can use localDB without installing SQL Server, how can localDB be an instance of something that is not installed? Or is localDB an incomplete version of SQL Server Express that just does not need to click..click..click.. to configure. Essentially localDB works like SQL Server CE where localDB use some hidden "files" in AppData to create database while SQL Server CE use the dll to generate the database?
SqlLocalDB.msi program to install the necessary files on the computer
If client still needs to install localDB (which is not really portable along with the application like SQL Server CE), then why not just install SQL Server Express? Either localDB or SQL Server Express is above 100MB+ anyway and need separate installation, what is the point of using localDB anyway?
LocalDB is a programmer-oriented version of SQL Server Express that needs to be installed just like SQL Server Express.
Unlike SQL Server Express, it's not installed as a Windows Service that starts up with your Windows OS - but it only starts up as needed (when your application starts up, or when you start it manually with the SqlLocalDb command line tool).
But LocalDB IS SQL Server Express (not Compact Edition). It uses the same .mdf and .ldf database files like and desktop/server version of SQL Server, not SQL Server CE's .sdf file format.
We used localdb on a project where we had agents in the field using laptops.
The functionality of localdb was better than SQL Server CE (I don't remember exactly what CE was missing, but it was important to the project), you should review the functional differences.
Another advantage was the db was stored in the user folder which makes it impossible for other non-admin users of the laptop to see. This allowed us to reuse and even share laptops between users without mixing data - a nice feature.
Finally, the dbs (with a little effort) can be copied to the dev/support side and restored/attached for troubleshooting. They are full .mdf/.ldf database files.
You do have to create the instances using a command line (sqllocaldb utility), after the product is installed. This was just part of our install app.
I have a computer that working as server and client machine. I installed SQL Server 2008 R2 and Visual Studio 2012 in it.
Using SQL server management studio I generated a DB then I created few table in that DB , then I insert data into it.
Then I deattached that DB using Server Management studio . Then I move that DB into my project "App_Data" folder.Then using "server explorer" & T_SQL pane functions of Visual Studio 2012 I did few changes of that DB .
Since I want to do massive changes , I close that DB connection with the project. I move that DB into SQL server default Database Location which is
"C:\Program Files\Microsoft SQL
Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA"
then I try to attach that DB using server management studio , I'm getting
"Error 948"
Cannot be opened because it is version 706. This server supports
version 661 and earlier
How to overcome this error ? your ideas/suggestions highly appreciate
By default, you can't attach a DB file from a SQL Server 2012 to an instance which is running SQL Server 2008 R2.
Version 661 is a SQL Server 2008 R2 DB file and version 706 is a SQL Server 2012 DB file. More information: How to determine version of Local Sql Instance and your database
You will therefore need to update your SQL Server instance, e.g. by upgrading to SQL Server 2012
I would also recommend you patch to the newest released build of SQL Server 2012. Check here for the newest version numbers for the different SQL Server versions: Microsoft SQL Server Version List
its a version comparability issue.
Initially you created in sqlserver 2008 R2 that version would be 661 and when you moved to VS2012 it was updated to 706, and when you tried to go back to SQl server 2008 R2 again this 706 version is not being downgraded to 661, obviously it can't be done.
one simple solution without any changes to your server setup, use Generate Script feature that should help you.
I want to create a setup file with Installshield 2010.
I have written my program with wpf and SQL Server 2008.
I created the file but during the installation, it starts to install SQL Server 2008 with all details.
I want to know can I do this? I don't install SQL Server 2008 or connect to database via any way such as MSDE for SQL Server 2000.
If I have to install SQL Server Express, can I install it as the user have no problem and the installation do automatically with no user interference?
You can start by reading more about prerequisites and how they are configured:
http://kb.flexerasoftware.com/doc/Helpnet/installshield16helplib_sp1/IncludingRedistributables.htm
With the prerequisite editor you can specify the application you want to run (SQL Server installer):
http://kb.flexerasoftware.com/doc/Helpnet/installshield16helplib_sp1/SetupPrereqEditor.htm
and its command line:
http://kb.flexerasoftware.com/doc/Helpnet/installshield16helplib_sp1/UIRefPrereqEditor_AppRun.htm
To install SQL Server prerequisites silently, you can use the SQL Server installer command line options in your prerequisite command line:
http://msdn.microsoft.com/en-us/library/ms144259(SQL.100).aspx
I have written c# application that uses mdf file for database.when i make setup of that project and runs on other computer having dotnetframework and sql server compact 3.5 then id dose not runs and exception is shown saying something sql server not found or not ready for connection something like that what should i do
mdf is not for sql server compact edition, it is for the real sql server. You need to deploy it to Sql Server Express edition or higher.
Edit:
You can install SQL server express edition or if you want to use the sql compact server you need to create a "local database" in visual studio.
When adding a mdf-database to your visual studio project is is attached to your local sql express database server behind the scenes when you start your project.
After creating the setup file in c#.net WPF application, couldnot connect with the sqlserver 2005 MDF file.
The setup file is including the sqlserver MDF file.
plz tell me, what is connection problem?
Just a wild guess (see comments on your question): You're trying to use the "user instance" feature that was introduced in SQL Server 2005? Then the SQL Server 2005 needs to be installed on the target machine as well - maybe only the Express edition. As long as you don't install the SQL Server there's no way you get a connection to your shipped MDF file.