DELETE ステートメント
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 { Id = <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 = "InitiateOAuth=GETANDREFRESH;Region='United States';Division=5512;"; using (ExactOnlineConnection connection = new ExactOnlineConnection(connectionString)) { int rowsAffected; ExactOnlineCommand cmd = new ExactOnlineCommand("DELETE FROM Accounts WHERE Id = @myId", connection); cmd.Parameters.Add(new ExactOnlineParameter("myId","a1f7b7c1-1ea9-4305-82b8-ab482db90a5f")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;Region='United States';Division=5512;" Using connection As New ExactOnlineConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New ExactOnlineCommand("DELETE FROM Accounts WHERE Id = @myId", connection) cmd.Parameters.Add(New ExactOnlineParameter("myId", "a1f7b7c1-1ea9-4305-82b8-ab482db90a5f")) rowsAffected = cmd.ExecuteNonQuery() End Using