Entity Framework 7: get database time

问题

What is the best method to get the database server time in EF7? I discovered so far that is currently no support for query with output parameters.

回答1:

If you only want to use Entity Framework, you can do it like that:

• Having this context:

  // My Dbcontext
  public class EF7Context : DbContext { }
  

• And the utility function:

  public static DateTime GetDbDateTime()
  {
      using (var context = new EF7Context())
      {
          using (var connection = context.Database.GetDbConnection())
          {
              if (connection.State == ConnectionState.Closed)
              {
                  connection.Open();
              }
  
              var command = connection.CreateCommand();
              command.CommandText = "select SYSUTCDATETIME()";
              return (DateTime)command.ExecuteScalar();
          }
      }
  }
  

回答2:

Done using ADO.NET approach:

public DateTime GetServerUtcNow()
{
    using (var connection = new SqlConnection(_settings.ConnectionString))
    {
        connection.Open();
        var command = connection.CreateCommand();
        command.CommandText = "select SYSUTCDATETIME()";
        return (DateTime)command.ExecuteScalar();
    }
}

来源：https://stackoverflow.com/questions/35077000/entity-framework-7-get-database-time