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csharp: using OleDb Getting the identity of the most recently added record
/// <summary> /// 执行SQL语句,返回影响的记录数 /// </summary> /// <param name="SQLString">SQL语句</param> /// <returns>影响的记录数</returns> public static int ExecuteSql(string SQLString, params OleDbParameter[] cmdParms) { using (OleDbConnection connection = new OleDbConnection(connectionString)) { using (OleDbCommand cmd = new OleDbCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); int rows = cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); return rows; } catch (System.Data.OleDb.OleDbException E) { throw new Exception(E.Message); } } } } /// <summary> /// 添加返迴ID值 /// 涂聚文 2014-12-29 /// Geovin Du /// 參考: http://www.mikesdotnetting.com/article/54/getting-the-identity-of-the-most-recently-added-record /// http://stackoverflow.com/questions/186544/identity-after-insert-statement-always-returns-0 /// </summary> /// <param name="SQLString"></param> /// <param name="identity"></param> /// <param name="cmdParms"></param> /// <returns></returns> public static int ExecuteSql(string SQLString, out int identity, params OleDbParameter[] cmdParms) { using (OleDbConnection connection = new OleDbConnection(connectionString)) { using (OleDbCommand cmd = new OleDbCommand()) { try { PrepareCommand(cmd, connection, null, SQLString, cmdParms); int rows = cmd.ExecuteNonQuery(); cmd.CommandText = "Select @@Identity"; identity = (int)cmd.ExecuteScalar(); cmd.Parameters.Clear(); return rows; } catch (System.Data.OleDb.OleDbException E) { throw new Exception(E.Message); } } } }
csharp: using OleDb Getting the identity of the most recently added record
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