Oracle.ManagedDataAccess.EntityFramework – ORA-01918：用户

当我收到ORA代码时，我假设连接已成功打开。但是迁移是失败的，因为可能，提供程序表现为SQL Server，而不是Oracle。我认为这是托盘使用“dbo”作为默认模式。

这是我的web.config设置：

<configuration>
  <configSections>
   <section name="entityFramework"
             type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection,EntityFramework,Version=6.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089"
             requirePermission="false" />
    <section name="Oracle.ManagedDataAccess.Client"
             type="OracleInternal.Common.ODPMSectionHandler,Oracle.ManagedDataAccess,Version=4.121.1.0,PublicKeyToken=89b483f429c47342" />
  </configSections>
  <entityFramework>
    <contexts>
      <context type="MyProject.Context.MainContext,MyProject.Context">
        <databaseInitializer type="MyProject.Context.Config.ContextInitializer,MyProject.Context" />
      </context>
    </contexts>
    <defaultConnectionFactory type="Oracle.ManagedDataAccess.Client.OracleClientFactory,Oracle.ManagedDataAccess" />    
    <providers>    
      <provider invariantName="Oracle.ManagedDataAccess.Client" 
                type="Oracle.ManagedDataAccess.EntityFramework.EFOracleProviderServices,Oracle.ManagedDataAccess.EntityFramework,Version=6.121.1.0,PublicKeyToken=89b483f429c47342" />
    </providers>
  </entityFramework>
  <system.data>
    <DbProviderFactories>
      <remove invariant="Oracle.ManagedDataAccess.Client" />
      <add name="ODP.NET,Managed Driver"
           invariant="Oracle.ManagedDataAccess.Client"
           description="Oracle Data Provider for .NET,Managed Driver"
           type="Oracle.ManagedDataAccess.Client.OracleClientFactory,PublicKeyToken=89b483f429c47342" />
    </DbProviderFactories>
  </system.data>
  <connectionStrings>
    <add name="MainContext"
         providerName="Oracle.ManagedDataAccess.Client"
         connectionString="Data Source=OracleServer:1521/BRSYSDS;User ID=USER;Password=PASSWORD;" />
  </connectionStrings>
  <!-- other settings -->
</configuration>

这里Stacktrace：

[OracleException (0x77e): ORA-01918: user ‘dbo’ does not exist]
OracleInternal.ServiceObjects.OracleCommandImpl.VerifyExecution(OracleConnectionImpl connectionImpl,Int32& cursorId,Boolean bThrowArrayBindRelatedErrors,OracleException& exceptionForArrayBindDML,Boolean& hasMoreRowsInDB,Boolean bFirstIterationDone) +652
OracleInternal.ServiceObjects.OracleCommandImpl.VerifyExecution(OracleConnectionImpl connectionImpl,Boolean bFirstIterationDone) +39
OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteNonQuery(String commandText,OracleParameterCollection paramColl,CommandType commandType,OracleConnectionImpl connectionImpl,Int32 longFetchSize,Int64 clientInitialLOBFS,OracleDependencyImpl orclDependencyImpl,Int64[]& scnFromExecution,OracleParameterCollection& bindByPositionParamColl,Boolean& bBindParamPresent,Boolean isFromEF) +7480
Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteNonQuery() +678
System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.b__0(DbCommand t,DbCommandInterceptionContext1 c) +10
System.Data.Entity.Infrastructure.Interception.InternalDispatcher1.Dispatch(TTarget target,Func3 operation,TInterceptionContext interceptionContext,Action3 executing,Action3 executed) +72
System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command,DbCommandInterceptionContext interceptionContext) +357
System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery() +104
System.Data.Entity.Migrations.DbMigrator.ExecuteSql(DbTransaction transaction,MigrationStatement migrationStatement,DbInterceptionContext interceptionContext) +152
System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable1 migrationStatements,DbTransaction transaction,DbInterceptionContext interceptionContext) +82
System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable1 migrationStatements,DbConnection connection) +626
System.Data.Entity.Migrations.<>c__DisplayClass30.<ExecuteStatements>b__2e() +19
System.Data.Entity.Infrastructure.DefaultExecutionStrategy.Execute(Action operation) +9
System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable1 migrationStatements,DbTransaction existingTransaction) +194
System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable1 migrationStatements) +7
System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId,XDocument targetModel,IEnumerable1 operations,IEnumerable1 systemOperations,Boolean downgrading,Boolean auto) +825
System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId,VersionedModel sourceModel,VersionedModel targetModel,Boolean downgrading) +564
System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable1 pendingMigrations,String targetMigrationId,String lastMigrationId) +404
System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration) +447
System.Data.Entity.Migrations.<>c__DisplayClassc.b__b() +13
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +422
System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +78
System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext internalContext,Func3 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.DropCreateDatabaseAlways1.InitializeDatabase(TContext context) +137

将其放在您的新的dbContext类的上下文文件中，如下所示：

public partial class MyAppContext : DbContext
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    modelBuilder.HasDefaultSchema("UPPERCASE_SCHEMA_NAME");
...

（编辑：李大同）

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