ADO.NET Provider for Microsoft Dynamics NAV

Build 23.0.8839

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 = "URL=http://myserver:7048;User=myserver\Administrator;Password=admin;ServerInstance=DYNAMICSNAV71;";
using (DynamicsNAVConnection connection = new DynamicsNAVConnection(connectionString)) {
  int rowsAffected;
  DynamicsNAVCommand cmd = new DynamicsNAVCommand("DELETE FROM Customer WHERE Id = @myId", connection);
  cmd.Parameters.Add(new DynamicsNAVParameter("myId","http://myserver:7048/DynamicsNAV71/OData/Customer('01234567')"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "URL=http://myserver:7048;User=myserver\Administrator;Password=admin;ServerInstance=DYNAMICSNAV71;"
Using connection As New DynamicsNAVConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New DynamicsNAVCommand("DELETE FROM Customer WHERE Id = @myId", connection)
  cmd.Parameters.Add(New DynamicsNAVParameter("myId", "http://myserver:7048/DynamicsNAV71/OData/Customer('01234567')"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

Copyright (c) 2024 CData Software, Inc. - All rights reserved.
Build 23.0.8839