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 <select_statement> | {<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 = "User=MyUserAccount;Password=MyPassword;Auth Scheme=NTLM;URL=http://sharepointserver/mysite;"; using (SharePointConnection connection = new SharePointConnection(connectionString)) { int rowsAffected; SharePointCommand cmd = new SharePointCommand("UPDATE Calendar SET Location='U.S.A.' WHERE Id = @myId", connection); cmd.Parameters.Add(new SharePointParameter("myId","1")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "User=MyUserAccount;Password=MyPassword;Auth Scheme=NTLM;URL=http://sharepointserver/mysite;" Using connection As New SharePointConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New SharePointCommand("UPDATE Calendar SET Location='U.S.A.' WHERE Id = @myId", connection) cmd.Parameters.Add(New SharePointParameter("myId", "1")) rowsAffected = cmd.ExecuteNonQuery() End Using