テーブルから情報を削除するには、DELETE ステートメントを使用します。

DELETE 構文

DELETE ステートメントには、次の例に示すように、FROM 句のテーブル名とWHERE 句の行の主キーが必要です。

<delete_statement> ::= DELETE FROM <table_name> WHERE { ItemId = <expression> } [ { AND | OR } ... ]

<expression> ::=
  | @ <parameter> 
  | ?
  | <literal>

次の例に示すように、ExecuteNonQuery メソッドを使って、データ操作コマンドを実行し影響を受ける行数を取得できます。

C#

String connectionString = "User='myUser@mydomain.onmicrosoft.com';Password='myPassword';Server='https://outlook.office365.com/EWS/Exchange.asmx';Platform='Exchange_Online';Schema='EWS';";
using (ExchangeConnection connection = new ExchangeConnection(connectionString)) {
  int rowsAffected;
  ExchangeCommand cmd = new ExchangeCommand("DELETE FROM Contacts WHERE ItemId = @myItemId", connection);
  cmd.Parameters.Add(new ExchangeParameter("myItemId","AQMkAGRlMWQ5MDg0..."));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "User='myUser@mydomain.onmicrosoft.com';Password='myPassword';Server='https://outlook.office365.com/EWS/Exchange.asmx';Platform='Exchange_Online';Schema='EWS';"
Using connection As New ExchangeConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New ExchangeCommand("DELETE FROM Contacts WHERE ItemId = @myItemId", connection)
  cmd.Parameters.Add(New ExchangeParameter("myItemId", "AQMkAGRlMWQ5MDg0..."))
  rowsAffected = cmd.ExecuteNonQuery()
End Using