The argument 'sql' cannot be null, empty or contain only white space. When first create the database

code first entity framework 4.1 The permission to CREATE DATABASE was refused in the database'master.'

I recently encountered this issue. Your DbContext subclass's class name must precisely correspond to the connection string's name. If it doesn't, EF won't be able to locate the connection string and will attempt to fall back to an other method (SQL embedded? ), which is ineffective on my computer (I have full SQL Server installed).

"CREATE DATABASE permission refused in database'master'," says EF Code First.

I've had this issue before and found a solution. Using SQL authentication rather than Windows' is crucial. The best approach to set the default database is in this manner....Try the following connection string:...<add name="MFCConnectionString" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\MFC.mdf;Initial Catalog=MFC;I...

EF code first - Model compatibility cannot be checked because the database does not contain model metadata

Here is a lengthy explanation of the potential solutions I wrote about a while ago...... (not precisely the same as what you're experiencing, therefore not a duplication in the strictest sense, but with many scenarios in mind)...https://stackoverflow.com/a/10255051/417747...To sum it up......What works for me is to use Update-Database -Script...Tha...

Create one to one relationship by using entity framework database first

It's not difficult to establish a 1:1 relationship, but I don't get why you would want one in this situation. It's not an usual demand, either. You are conversing with the incorrect people if this is what they are saying....However, as you seem to be doing, utilizing SQL queries has nothing to do with EF; rather, you are just interacting with the d...

How can I create a database in SQL Server by code first entity framework 6?

You must inform your...DbContext... utilize the connection string you wanted to use. While your connection string is titled "dbRaja," the default value is one with the same name as your application (i.e. "Raja1")....public class MyContext : DbContext { public MyContext : base("name=dbRaja") { } }

Getting Error The argument 'nameOrConnectionString' cannot be null, empty or contain only white space with Azure Database

Try setting up the starter project to overcome this problem if you have numerous projects active. Sorry for the wait

Entity Framework 6 Database First Approach Not Creating All Tables From SQL Server

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EF Code First CREATE DATABASE permission denied in database 'master'

The database was created by:...Select the user account under which you wish to construct the database by opening the Security folder, the Logins folder, and Security folder. Select the Server Roles tab from the Account Properties window, then click the Dbcreator checkbox (sysadmin works even better). Attempting to build the database while signed in...

How to avoid connections against empty/null database by Entity Framework

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The argument 'nameOrConnectionString' cannot be null, empty or contain only white space in Entity Framework project

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