I made application using DataBase First approach with oracle (in this way https://www.youtube.com/watch?v=tk_EDjTzZCE so I used Entity Wizard)
I deployed my application on http://www.smarterasp.net/
Everything works fine.
But I decided to change connectionString in webconfig. Because I wanted to use database from another server. New Database has literaly same structure as old but still doesn't work.
Also I tried to change connectionString before deploy. I compiled the application and when I run - receives an error: ORA-00942: table or view does not exist
If I add database again using Entity Wizard (check youtube link above) then everything works fine. How can avoid this? Maybe my connectionString is wrong?
<connectionStrings>
<add name="DbEntities" connectionString="metadata=res://*/DAL.DbModel.csdl|res://*/DAL.DbModel.ssdl|res://*/DAL.DbModel.msl;provider=Oracle.ManagedDataAccess.Client;provider connection string="DATA SOURCE=some-link.com:1521/ORCLBK;PASSWORD=some_password;USER ID=some_login"" providerName="System.Data.EntityClient" />
</connectionStrings>
Related
I'm going through a basic tutorial for ASP.NET MVC based on this Microsoft Help document. The app displays books and authors from a database and allows for CRUD operations on that data. Everything is working fine on my machine when I run locally developing with Visual Studio 2017. But when I try to to deploy to my PLESK hosted website I'm having problems. I recreated (from scratch) a MySQL database designed to exactly replicate the schema of local database and populated it with sample values. When the page loads, I'm getting a long hang and ultimately a 500 error after it tries unsuccessfully to connect to the database.
This is the connection string that is working locally:
<add name="BookServiceContext" connectionString="Data Source=(localdb)\MSSQLLocalDB; Initial Catalog=BookServiceContext-20200803155333; Integrated Security=True; MultipleActiveResultSets=True; AttachDbFilename=|DataDirectory|BookServiceContext-20200803155333.mdf" providerName="System.Data.SqlClient" />
And here's the connectionStrings part of the remote web.config:
<add name="BookServiceContext" connectionString="Server=###.##.###.##;Database=BookServiceContext;Uid=myPLESKUserIDAssociatedWithDatabase;Pwd=PasswordForTheUser;multipleactiveresultsets=True" providerName="System.Data.SqlClient" />
Perhaps I have the syntax wrong or am missing a setting in PLESK (I was trying to use a sample from ConnectionStrings.com and haven't set up a DB in PLESK before).
I have created 2 separate projects under one solution where one project is a class library. I have created an ADO.NET Entity Model from my existing database into this. Another project is an ASP.NET MVC web app.
I have used Individual User Authentication and wanted to use registration and login facility provided by this.
Now I am unable to use my existing database as this project is creating new database by itself when first runs.
Please guide me how to use existing database. I have given reference to my ASP.NET MVC project. These are my connection strings. Please help me.
<connectionStrings>
<add name="LAPTOP-71D4QMB6"
connectionString="Data Source=LAPTOP-71D4QMB6;Initial Catalog=VCAdvertiserDB;Integrated Security=True"
providerName="System.Data.SqlClient" />
<add name="HBDBEntities"
connectionString="metadata=res://*/Data.HBModel.csdl|res://*/Data.HBModel.ssdl|res://*/Data.HBModel.msl;provider=System.Data.SqlClient;provider connection string="data source=LAPTOP-71D4QMB6;initial catalog=VCAdvertiserDB;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework""
providerName="System.Data.EntityClient" />
</connectionStrings>
Error thrown is:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
You have to copy the connection string from the app.config of your class library to the web.config of the MVC project. You need to put it in both the root web.config and also have to put it in the shared web.config under the shared views folder. That last may not be needed but it also doesn't hurt.
That worked for me.
Joey
I'm a beginner in MVC application development. I'm just trying to make a MVC application getting help from internet. That was a simple example and working properly. The article is said the database is in app_data folder. But actually there is no any database in that folder. Then I just tried to find the physical database location using the connection string.
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=aspnet-ePhoneBook-20140322204146;Integrated Security=SSPI" providerName="System.Data.SqlClient" />
</connectionStrings>
as the above connection string (I just not write down this and it is auto generated code in web.config file), the database name is "aspnet-ePhoneBook-20140322204146". Then I checked weather this DB available in physical location of the sql databases. My all other databases (My old projects' databases) are in that folder. But couldn’t find this database. then I tried with folder searching option in windows 7. There is no any database with that name. The wonder is my application run properly. Data saved properly. SQL management studio also not showing the database.
My question is, How to find the physical location of the database and why is this database not showing in SQL management studio.
The issue is you're pointing to SQL server, and ,definitely, not to separate attached database file.
your connection string should look like this:
<connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=aspnet-ePhoneBook-20140322204146;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-ePhoneBook-20140322204146.mdf" />
where |DataDirectory| - is actually App_Data folder in terms of ASP.NET.
Using VS 2010, MVC 3, and SQL Express, I've been following the tutorials on ASP.net. I'm also using EF code first. So far, my connection string has been:
<add name="MusicStoreEntities"
connectionString="Server=.\SQLExpress;Database=MusicStoreDB;Integrated Security=SSPI;User Instance=true"
providerName="System.Data.SqlClient" />
Which creates the db in:
C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Microsoft SQL Server Data\SQLEXPRESS
I now want to have the database reside in the App_Data folder. So I created a new web application following a different tutorial, but this time I added a SQL database to it, and modified the connection string for the membership database by changing the database name. I then used aspnet_regsql.exe to create the membership tables. I then created POCO classes, a controller and added seed data. Since the database already existed, it complained about not having an EdmMetadata table. Upon researching that I realized my mistake and deleted the database. Not to mention the DB will be dropped and created as the project is modified. Running the project again gave me the error "Initial catalog not specified" so I modified the connection string. Running the project again I get the error 'C:\ContosoUniversity\ContosoUniversity\App_Data\School.mdf' already exists. Choose a different database name.
A search of my hard drive reveals this database does not exist. My connection string looks like this:
<add name="SchoolContext"
connectionString="data source=.\SQLEXPRESS;Initial Catalog=School;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|School.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
What is making it think the DB exists? What do I need to do to get code first to create the DB in the App_Data folder?
Although I ended up changing the database name in frustration, a search of my registry revealed multiple entries for school.mdf in the app_data directory. Removing these solved the problem.
I have develop MVC Web Application
I use ASP.Net authenticate to implement my login form
The problem is that i cannot deploy it to server.
In the first i use ASPNetDB.mdf which is a file store in AppData forlder
After that I change to store ASPNETDB as a database in SQlServer and also update the connectionstring to new database
In the development environment both of them work well
But when I deploy to IIS, I cannot login, it show me following error :
"Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed."
Here is my connection string:
<connectionStrings>
<add name="ApplicationServices"
connectionString="Data Source=.\PHDatabase; Initial Catalog=aspnetdb;User ID=sa;Password=****" />
</connectionStrings>
I try to google a lot but until now, there is no result
Please help me to solve the problem
Regard
Try replacing machine name instead of a "."
Data Source=machinename\PHDatabase; Initial Catalog=aspnetdb;User ID=sa;Password=****
The other possibility is if you are using certain wizards like Linq2Sql etc., they might keep the connection string inside the code. Check for them as well..
In development environment, when you are using Attached Database file from App_Data folder with SQL Express, you should use the following connectionstring
<add name="YourConnectionStringName"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;
AttachDBFilename=|DataDirectory|\YourDatabase.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
But, when you testing or deploying with Database on the SQL Server, you should make use of following type of connectionstring
<add name="YourConnectionStringName"
connectionString="Data Source=db.YourhostedResourceName.com;
Initial Catalog=YourDbName;User ID=yourusername;Password='yourpassword';"
providerName="System.Data.SqlClient" />