static void Main(string[] args)
{
// Enter user id, password, and Oracle data source (i.e. net service name, EZ Connect, etc.)
string constr = "user id=<USER ID>;password=<PASSWORD>;data source=<DATA SOURCE>";
string sqlInsertRef = "insert into odp_ref2_sample_person_obj_tab values (:1)";
string sqlSelectRef = "select ref(p) from odp_ref2_sample_person_obj_tab p";
string sqlSelectValue = "select value(p) from odp_ref2_sample_person_obj_tab p";
string udtTypeNameP = "ODP_REF2_SAMPLE_PERSON_TYPE";
string objTabNameP = "ODP_REF2_SAMPLE_PERSON_OBJ_TAB";
// Create a new Person object.
Person p = new Person();
p.Name = "John";
p.Address = "Address 1";
p.Age = 20;
// Create a new Student object.
Student s = new Student();
s.Name = "Jim";
s.Address = "Address 2";
s.Age = 25;
s.Major = "Physics";
OracleConnection con = null;
OracleCommand cmd = new OracleCommand();
OracleDataReader reader = null;
OracleTransaction txn = null;
OracleRef refP = null; // person REF
OracleRef refS = null; // student REF
try
{
// Establish a connection to Oracle DB.
con = new OracleConnection(constr);
con.Open();
cmd.Connection = con;
try
{
// Inserting a person and a student instance into the odp_ref2_sample_person_obj_tab
txn = con.BeginTransaction();
cmd.CommandText = sqlInsertRef;
OracleParameter param = new OracleParameter("inParam", OracleDbType.Object, ParameterDirection.Input);
param.UdtTypeName = udtTypeNameP;
cmd.Parameters.Add(param);
// Insert person
param.Value = p;
cmd.ExecuteNonQuery();
// Insert Student
param.Value = s;
cmd.ExecuteNonQuery();
txn.Commit();
}
catch (Exception ex)
{
Console.WriteLine("Exception in inserting into {0}: {1}", objTabNameP, ex.Message);
}
finally
{
if (txn != null)
{
txn.Dispose();
txn = null;
}
if (cmd != null)
{
cmd.Parameters.Clear();
}
}
try
{
// Retrieving REF from odp_ref2_sample_person_obj_tab
cmd.CommandText = sqlSelectRef;
reader = cmd.ExecuteReader();
int row = 1;
while (reader.Read())
{
if (row == 1)
{
refP = reader.GetOracleRef(0);
}
else
{
refS = reader.GetOracleRef(0);
}
row++;
}
// Fetch rows from database table.
Person p1 = (Person)refP.GetCustomObject();
Student s1 = (Student)refS.GetCustomObject();
Console.WriteLine("Person: " + p1);
Console.WriteLine("Student: " + s1);
Console.WriteLine();
}
catch (Exception ex)
{
Console.WriteLine("Exception in selecting from {0}: {1}", objTabNameP, ex.Message);
}
finally
{
if (reader != null)
{
reader.Dispose();
reader = null;
}
}
try
{
// Update person object.
txn = con.BeginTransaction();
Person p2 = (Person)refP.GetCustomObject();
// Update person's age using OracleRef.
p2.Age = p2.Age + 1;
refP.Update(p2);
// p2 is updated to the database.
txn.Commit();
}
catch (Exception ex)
{
Console.WriteLine("Exception in updating person in {0}: {1}", objTabNameP, ex.Message);
}
finally
{
if (txn != null)
{
txn.Dispose();
txn = null;
}
}
// Delete student object.
try
{
txn = con.BeginTransaction();
refS.Delete();
txn.Commit();
}
catch (Exception ex)
{
Console.WriteLine("Exception in deleting student from {0}: {1}", objTabNameP, ex.Message);
}
finally
{
if (txn != null)
{
txn.Dispose();
txn = null;
}
}
try
{
// Retrieve rows from the database table.
cmd.CommandText = sqlSelectValue;
cmd.CommandType = CommandType.Text;
reader = cmd.ExecuteReader();
// Fetch each row.
int rowCount = 1;
while (reader.Read())
{
// Fetch the objects as a custom type.
Person p3;
if (reader.IsDBNull(0))
{
p3 = Person.Null;
}
else
{
p3 = (Person)reader.GetValue(0);
}
Console.WriteLine("Row {0}: {1}", rowCount++, p3);
}
}
catch (Exception ex)
{
Console.WriteLine("Exception in selecting from {0}: {1}", objTabNameP, ex.Message);
}
finally
{
if (reader != null)
{
reader.Dispose();
reader = null;
}
}
}
catch (Exception ex)
{
Console.WriteLine("Get exception: " + ex.Message);
}
finally
{
// Clean up
if (refS != null)
{
refS.Dispose();
}
if (refP != null)
{
refP.Dispose();
}
if (reader != null)
{
reader.Dispose();
}
if (cmd != null)
{
cmd.Dispose();
}
if (txn != null)
{
txn.Dispose();
}
if (con != null)
{
con.Close();
con.Dispose();
}
}
}
internal IList <RubricaEntitaType> GetContattiOrgByName(string nomeEntita)
{
List <RubricaEntitaType> listEntities = null;
using (OracleCommand oCmd = base.CurrentConnection.CreateCommand())
{
oCmd.CommandText = "SELECT VALUE(v0)"
+ " FROM v_rubr_entita_obj v0"
+ " WHERE :p_id_org IN (upper(v0.ragione_sociale), upper(v0.ufficio))";
oCmd.Parameters.Add("p_id_org", nomeEntita.ToUpper());
try
{
using (OracleDataReader r = oCmd.ExecuteReader())
{
if (r.HasRows)
{
listEntities = new List <RubricaEntitaType>();
while (r.Read())
{
RubricaEntitaType ent = (RubricaEntitaType)(r.GetOracleValue(0));
if (!ent.RUBR_CONTATTI_REFS.IsNull)
{
ent.Contatti = new List <RubricaContatti>();
foreach (string o in ent.RUBR_CONTATTI_REFS.ListContattiRef)
{
OracleRef or = new OracleRef(base.CurrentConnection, o);
RubricaContattiType rc = (RubricaContattiType)or.GetCustomObject(OracleUdtFetchOption.Server);
rc.SetEntita(ent);
ent.Contatti.Add(rc);
}
}
listEntities.Add(ent);
}
}
}
}
catch
{
listEntities = null;
}
}
return(listEntities);
}