在C#中创建Microsoft Access查询

using System.Data.OleDb;

string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\path\to\your\database.accdb";

using (OleDbConnection connection = new OleDbConnection(connectionString))
{
    // 打开连接
    connection.Open();

    // 创建查询语句
    string query = "SELECT * FROM TableName";

    // 创建命令对象
    using (OleDbCommand command = new OleDbCommand(query, connection))
    {
        // 执行查询并获取结果
        using (OleDbDataReader reader = command.ExecuteReader())
        {
            while (reader.Read())
            {
                // 处理查询结果
                // 例如，可以通过reader.GetInt32、reader.GetString等方法获取字段值
            }
        }
    }

    // 关闭连接
    connection.Close();
}