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 { GoalHeadingId = <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;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;"; using (Dynamics365Connection connection = new Dynamics365Connection(connectionString)) { int rowsAffected; Dynamics365Command cmd = new Dynamics365Command("DELETE FROM GoalHeadings WHERE GoalHeadingId = @myGoalHeadingId", connection); cmd.Parameters.Add(new Dynamics365Parameter("myGoalHeadingId","'test'")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;" Using connection As New Dynamics365Connection(connectionString) Dim rowsAffected As Integer Dim cmd As New Dynamics365Command("DELETE FROM GoalHeadings WHERE GoalHeadingId = @myGoalHeadingId", connection) cmd.Parameters.Add(New Dynamics365Parameter("myGoalHeadingId", "'test'")) rowsAffected = cmd.ExecuteNonQuery() End Using