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 { EntityId = <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=admin;Password=admin;Url=https://myadobecommercehost"; using (AdobeCommerceConnection connection = new AdobeCommerceConnection(connectionString)) { int rowsAffected; AdobeCommerceCommand cmd = new AdobeCommerceCommand("DELETE FROM Products WHERE EntityId = @myEntityId", connection); cmd.Parameters.Add(new AdobeCommerceParameter("myEntityId","25")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "User=admin;Password=admin;Url=https://myadobecommercehost" Using connection As New AdobeCommerceConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New AdobeCommerceCommand("DELETE FROM Products WHERE EntityId = @myEntityId", connection) cmd.Parameters.Add(New AdobeCommerceParameter("myEntityId", "25")) rowsAffected = cmd.ExecuteNonQuery() End Using