c# – ADO.Net：从SQL服务器表中获取表定义

我正在使用C#编写一个方法,该方法返回有关表的以下信息：
列名,列类型,列大小,外键.

有人能指出我如何实现这个目标的正确方向吗？

解决方法

要获得FK和Schema,您应该能够使用：

DA.FillSchema() 

DS.Table("Name").PrimaryKey

或者使用下面演示的方法调用sp_fkey

代码段from和Another Link

private void LoanSchema()
    {

         private List<String> tablesList = new List<String>();
         private Dictionary<String,String> columnsDictionary = new Dictionary<String,String>();

          string connectionString = "Integrated Security=sspI;" +
          "Persist Security Info = False;Initial Catalog=northwind;" +
          "Data Source = localhost";
          sqlConnection connection = new sqlConnection();
          connection.ConnectionString = connectionString;
          connection.open();

          sqlCommand command = new sqlCommand();
          command.Connection = connection;
          command.CommandText = "exec sp_tables";
          command.CommandType = CommandType.Text;

          sqlDataReader reader = command.ExecuteReader();

           if (reader.HasRows)
           {
               while (reader.Read())
                  tablesList.Add(reader["TABLE_NAME"].ToString());
           }
           reader.Close();

           command.CommandText = "exec sp_columns @table_name = '" +
           tablesList[0] + "'";
           command.CommandType = CommandType.Text;
           reader = command.ExecuteReader();

            if (reader.HasRows)
            {
                while (reader.Read())
                          columnsDictionary.Add(reader["COLUMN_NAME"].ToString(),reader["TYPE_NAME"].ToString());
             }
}

原文地址：https://www.jb51.cc/csharp/98158.html