数据库“master”中的CREATE DATABASE权限被拒绝。(CREATE DATABASE permission denied in database 'master'.

数据库“master”中的CREATE DATABASE权限被拒绝。(CREATE DATABASE permission denied in database 'master'. when publishing to web server)

我知道这个问题被问了很多次，但主题都没有对我有用。我已经发布了一个mvc网站到plesk控制面板Web服务器，但我不断收到此错误：

CREATE DATABASE permission denied in database 'master'.

谁能告诉我发生了什么事？我花了三天时间尝试了一切。这是我的连接字符串：

错误：

[SqlException (0x80131904): CREATE DATABASE permission denied in database 'master'.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +2434922 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5736592 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +285 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +3731 System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite) +940 System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite) +272 System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +280 System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c) +10 System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch(TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) +72 System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext) +356 System.Data.Entity.SqlServer.<>c__DisplayClass1a.<CreateDatabaseFromScript>b__19(DbConnection conn) +119 System.Data.Entity.SqlServer.<>c__DisplayClass33.<UsingConnection>b__32() +443 System.Data.Entity.SqlServer.<>c__DisplayClass1.<Execute>b__0() +10 System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func`1 operation) +189 System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation) +78 System.Data.Entity.SqlServer.SqlProviderServices.UsingConnection(DbConnection sqlConnection, Action`1 act) +175 System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action`1 act) +556 System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable`1 commandTimeout, DbConnection sqlConnection, String createDatabaseScript) +86 System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) +164 System.Data.Entity.Core.Common.DbProviderServices.CreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) +76 System.Data.Entity.Core.Objects.ObjectContext.CreateDatabase() +134 System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection connection) +119 System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +142 System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +78 System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext internalContext, Func`3 createMigrator, ObjectContext objectContext) +89 System.Data.Entity.Internal.InternalContext.CreateDatabase(ObjectContext objectContext, DatabaseExistenceState existenceState) +116 System.Data.Entity.Database.Create(DatabaseExistenceState existenceState) +218 System.Data.Entity.CreateDatabaseIfNotExists`1.InitializeDatabase(TContext context) +151 System.Data.Entity.Internal.<>c__DisplayClassf`1.<CreateInitializationAction>b__e() +76 System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action) +60 System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization() +357 System.Data.Entity.Internal.LazyInternalContext.<InitializeDatabase>b__4(InternalContext c) +7 System.Data.Entity.Internal.RetryAction`1.PerformAction(TInput input) +110 System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action`1 action) +198 System.Data.Entity.Internal.LazyInternalContext.InitializeDatabase() +73 System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +28 System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +53 System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext() +15 System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider() +38 System.Linq.Queryable.OrderByDescending(IQueryable`1 source, Expression`1 keySelector) +83

I know that this question was asked so many times but none of the theme worked for me. I have published a mvc website to a plesk control panel web server but I continuously get this error:

CREATE DATABASE permission denied in database 'master'.

Can anyone tell me what's going on ? I spent three days and tried everything. here is my connection string:

Error:

最满意答案

错误完全是直截了当的。您的应用程序正在尝试创建数据库，并且与其连接的数据库用户没有该权限。至于为什么会发生这种情况，很难用所提供的信息说出来。假设您实际上并未尝试在代码中显式创建数据库，这很可能是由于在您的上下文中设置了数据库初始化策略。默认情况下，如果数据库不存在，则尝试创建数据库。因此，您应该确保您要连接的实例确实具有您的应用程序尝试使用的数据库。

你也可以简单地给DB用户创建数据库的权限，但这是一个非常糟糕的主意，安全性明智。您的Web应用程序的数据库用户应始终拥有最有限的权限集，基本上只有SELECT，INSERT，UPDATE和DELETE，甚至可能不是所有这些权限。在某些情况下，您可能也需要EXECUTE，但您可以逐个对象地授予它，而不是全局。

The error is entirely straight-forward. Your application is attempting to create a database and the database user it's connecting with does not have that permission. As to why that's occurring, it's difficult to say with the infomation provided. Assuming you're not actually attempting to explicitly create a database in your code, it's most likely due to the database initialization strategy set on your context. The default is to attempt to create the database if it does not exist. As a result, you should ensure that the instance you're connecting to does indeed have the database your application is attempting to work with.

You could also simply give the DB user permission to create the database, but that would be an extremely bad idea, security wise. Your web application's DB user should always have the most limited set of permissions possible, basically just SELECT, INSERT, UPDATE, and DELETE, and maybe not even all of those. You might need EXECUTE as well in some scenarios, but you can grant that on an object-by-object basis, rather than globally.

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