Hello, ADO.NET(C++/CLI) World!
Posted on 9月 5th, 2012 by cx20
ADO.NET(C++/CLI)
ADO.NET（ActiveX Data Objects .NET）は、ADO の後継で .NET ベースの DBMS 接続用 API である。
.NET データプロバイダを介することで様々な DBMS への接続が可能となっている。
.NET Framework 標準で使用できる .NET データプロバイダとしては、以下のようなプロバイダがある。
| データプロバイダ名 |
説明 |
| System.Data.SqlClient |
Microsoft SQL Server |
| System.Data.OleDb |
OLE DB |
| System.Data.Odbc |
ODBC |
| System.Data.OracleClient |
Oracle |
ソースコード（C++/CLI + ADO.NET + OLE DB + Jet データベース）
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::OleDb;
int main( array<System::String^>^ args )
{
String^ conStr = "Provider=Microsoft.Jet.OLEDB.4.0;"
+ "Data Source=.\hello.mdb;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OleDbConnection^ con = gcnew OleDbConnection(conStr);
OleDbCommand^ cmd = gcnew OleDbCommand(sqlStr, con);
con->Open();
OleDbDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
} |
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::OleDb;
int main( array<System::String^>^ args )
{
String^ conStr = "Provider=Microsoft.Jet.OLEDB.4.0;"
+ "Data Source=.\hello.mdb;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OleDbConnection^ con = gcnew OleDbConnection(conStr);
OleDbCommand^ cmd = gcnew OleDbCommand(sqlStr, con);
con->Open();
OleDbDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
}
ソースコード（C++/CLI + ADO.NET + OLE DB + ACE データベース）
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::OleDb;
int main( array<System::String^>^ args )
{
String^ conStr = "Provider=Microsoft.ACE.OLEDB.12.0;"
+ "Data Source=.\hello.accdb;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OleDbConnection^ con = gcnew OleDbConnection(conStr);
OleDbCommand^ cmd = gcnew OleDbCommand(sqlStr, con);
con->Open();
OleDbDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
} |
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::OleDb;
int main( array<System::String^>^ args )
{
String^ conStr = "Provider=Microsoft.ACE.OLEDB.12.0;"
+ "Data Source=.\hello.accdb;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OleDbConnection^ con = gcnew OleDbConnection(conStr);
OleDbCommand^ cmd = gcnew OleDbCommand(sqlStr, con);
con->Open();
OleDbDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
}
ソースコード（C++/CLI + ADO.NET + SQL Server）
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::SqlClient;
int main( array<System::String^>^ args )
{
String^ conStr = "SERVER=(local);"
+ "DATABASE=master;"
+ "UID=sa;"
+ "PWD=P@ssW0rd";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
SqlConnection^ con = gcnew SqlConnection(conStr);
SqlCommand^ cmd = gcnew SqlCommand(sqlStr, con);
con->Open();
SqlDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
} |
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::SqlClient;
int main( array<System::String^>^ args )
{
String^ conStr = "SERVER=(local);"
+ "DATABASE=master;"
+ "UID=sa;"
+ "PWD=P@ssW0rd";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
SqlConnection^ con = gcnew SqlConnection(conStr);
SqlCommand^ cmd = gcnew SqlCommand(sqlStr, con);
con->Open();
SqlDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
}
ソースコード（C++/CLI + ADO.NET + Oracle）
#using <System.dll>
#using <System.Data.dll>
#using <System.Data.OracleClient.dll>
using namespace System;
using namespace System::Data::OracleClient;
int main( array<System::String^>^ args )
{
String^ conStr = "Data Source=ORCL;User ID=scott;Password=tiger;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message FROM DUAL";
OracleConnection^ con = gcnew OracleConnection(conStr);
OracleCommand^ cmd = gcnew OracleCommand(sqlStr, con);
con->Open();
OracleDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
} |
#using <System.dll>
#using <System.Data.dll>
#using <System.Data.OracleClient.dll>
using namespace System;
using namespace System::Data::OracleClient;
int main( array<System::String^>^ args )
{
String^ conStr = "Data Source=ORCL;User ID=scott;Password=tiger;";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message FROM DUAL";
OracleConnection^ con = gcnew OracleConnection(conStr);
OracleCommand^ cmd = gcnew OracleCommand(sqlStr, con);
con->Open();
OracleDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
}
ソースコード（C++/CLI + ADO.NET + ODBC + MySQL）
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::Odbc;
int main( array<System::String^>^ args )
{
String^ conStr = "Driver={MySQL ODBC 5.1 Driver};Server=localhost;UID=root;PWD=P@ssW0rd";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OdbcConnection^ con = gcnew OdbcConnection(conStr);
OdbcCommand^ cmd = gcnew OdbcCommand(sqlStr, con);
con->Open();
OdbcDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
} |
#using <System.dll>
#using <System.Data.dll>
using namespace System;
using namespace System::Data::Odbc;
int main( array<System::String^>^ args )
{
String^ conStr = "Driver={MySQL ODBC 5.1 Driver};Server=localhost;UID=root;PWD=P@ssW0rd";
String^ sqlStr = "SELECT 'Hello, ADO.NET World!' AS Message";
OdbcConnection^ con = gcnew OdbcConnection(conStr);
OdbcCommand^ cmd = gcnew OdbcCommand(sqlStr, con);
con->Open();
OdbcDataReader^ reader = cmd->ExecuteReader();
while( reader->Read() )
{
Console::WriteLine( reader->GetName(0) );
Console::WriteLine( "---------------------" );
Console::WriteLine( reader[0] );
}
reader->Close();
con->Close();
return 0;
}
コンパイル方法
実行結果
Message
---------------------
Hello, ADO.NET World! |
Message
---------------------
Hello, ADO.NET World!
Tags: ADO.NET
Categories: .NET, ADO.NET, C++/CLI
