ADO.NET Provider for Business b-ridge

Build 20.0.7654

UPDATE ステートメント

既存のレコードを変更するには、UPDATE ステートメントを使用します。

Update 構文

UPDATE 構文はカンマ区切りのカラムをインプットとして取り、SET 句のname-value ペアを新しいカラム値として取ります。

UPDATE <table_name> SET { <column_reference> = <expression> } [ , ... ] WHERE { Id = <expression>  } [ { AND | OR } ... ] 

<expression> ::=
  | @ <parameter> 
  | ?
  | <literal>
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た行を取得できます。

C#

String connectionString = "ConnectionProperty1=Value1;ConnectionProperty2=Value2";
using (BusinessbridgeConnection connection = new BusinessbridgeConnection(connectionString)) {
  int rowsAffected;
  BusinessbridgeCommand cmd = new BusinessbridgeCommand("UPDATE CDATA SET StructureId='John' WHERE Id = @myId", connection);
  cmd.Parameters.Add(new BusinessbridgeParameter("myId","6"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

Dim connectionString As [String] = "ConnectionProperty1=Value1;ConnectionProperty2=Value2"
Using connection As New BusinessbridgeConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New BusinessbridgeCommand("UPDATE CDATA SET StructureId='John' WHERE Id = @myId", connection)
  cmd.Parameters.Add(New BusinessbridgeParameter("myId", "6"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

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Build 20.0.7654