SQL 서버 데이터베이스에서 정보 얻기

Question

리더 변수의 데이터 유형을 알려주십시오.

public Patient GetPatientInfo(string ID) 
    { 
     const string sql_get_patient_info = "Select * from dbo.Tb_Patient WHERE id=@ID"; 
     Patient _p = new Patient(); 

     DbCommand readCommand = _db.GetSqlStringCommand(sql_get_patient_info); 
     SqlDataReader reader = readCommand.ExecuteReader(); 

     while (reader.Read()) 
     { 
      _p.PatientName = reader["Name"].ToString(); 
      _p.PatientDate = reader["Date"]; 
      _p.PatientGender = reader["Gender"].ToString(); 
      _p.PatientAge = reader["Age"].ToString(); 
      _p.PatientContact = reader["Contact"].ToString(); 
      _p.PatientOccupation = reader["Occupation"].ToString(); 
     } 
     return _p; 
    } 

Answer 1

그런 다음 DbCommand 클래스를 사용하고 있기 때문에 당신이

DbDataReader reader = readCommand.ExecuteDbDataReader(); 

MSDN ExecuteDbDataReader