c#简单的更新查询不起作用

Question

SqlConnection conn = new SqlConnection(@"Data Source=SAI\SQLEXPRESS;Initial Catalog=testing;Integrated Security=True;Pooling=False");

conn.Open();
SqlCommand command = new SqlCommand();
string test = "UPDATE attend Year='2014' WHERE Id = '2'";
command = new SqlCommand(test, conn);
command.ExecuteNonQuery();
conn.Close();

Year 和 id 都是varchar 。 错误是：

'Year' 附近的语法不正确。

Answer 1

应该 ：

UPDATE attend SET Year='2014' WHERE Id = '2'