sql - 如何将地理位置批量插入到新的SQL Server 2008表中

Question

我有一个非常大的形状文件，其中包含成百上千行的多边形和其他相关数据，例如格式化的地址和APN编号。如何在不使用Shape2SQL之类的情况下将这些数据放入具有地理位置的表中？我不能很好地为将要花费的每一行运行插入语句，最佳的解决方案是创建一个csv或格式正确的bin文件，然后进行批量插入，bcp或openrowset，但尝试尝试，请尝试，因为我可能无法获取csv文件或bin文件。有人可以帮忙吗？

以下代码是我能管理的最好的代码。

SqlGeographyBuilder sql_geography_builder = new SqlGeographyBuilder();
sql_geography_builder.SetSrid(4326);
sql_geography_builder.BeginGeography(OpenGisGeographyType.Polygon);
sql_geography_builder.BeginFigure(-84.576064, 39.414853);
sql_geography_builder.AddLine(-84.576496, 39.414800);
sql_geography_builder.AddLine(-84.576522, 39.414932);
sql_geography_builder.AddLine(-84.576528, 39.414964);
sql_geography_builder.AddLine(-84.576095, 39.415015);
sql_geography_builder.AddLine(-84.576064, 39.414853);
sql_geography_builder.EndFigure();
sql_geography_builder.EndGeography();
SqlGeography sql_geography = new SqlGeography();
sql_geography = sql_geography_builder.ConstructedGeography;


FileStream file_stream = new FileStream("C:\\PROJECTS\\test.bin", FileMode.Create);
BinaryWriter binary_writer = new BinaryWriter(file_stream);

sql_geography.Write(binary_writer);
binary_writer.Flush();

binary_writer.Close();
file_stream.Close();
file_stream.Dispose();

SqlConnection sql_connection = new SqlConnection(connection_string);
sql_connection.Open();

SqlCommand sql_command = new SqlCommand();
sql_command.Connection = sql_connection;
sql_command.CommandTimeout = 0;
sql_command.CommandType = CommandType.Text;
sql_command.CommandText = "INSERT INTO [SPATIAL_TEST].[dbo].[Table_1] ([geo]) " +
              "SELECT [ors].* " +
              "FROM OPENROWSET(BULK 'C:\\PROJECTS\\AMP\\test.bin', SINGLE_BLOB) AS [ors] ";
sql_command.ExecuteNonQuery();

sql_command.Dispose();
sql_connection.Close();
sql_connection.Dispose();

但这只允许我单独导入多边形-我还需要其他所有内容。

Answer 1

经过几天的头痛，我得出了没有答案的结论。甚至没有强大的ESRI也没有任何线索。值得庆幸的是，我确实提出了不同的想法。在表定义中，我创建了一个NVARCHAR(MAX)列来保存我的地理位置的WFT，并将该WFT添加到我的csv文件中，然后在批量插入之后，我运行一个表范围内的更新语句，以将WFT转换为实际的地理位置类型。还要调整csv文件以使用除之外的其他字符，以分隔WFT包含的，

SqlGeographyBuilder sql_geography_builder = new SqlGeographyBuilder();
sql_geography_builder.SetSrid(4326);
sql_geography_builder.BeginGeography(OpenGisGeographyType.Polygon);
sql_geography_builder.BeginFigure(-84.576064, 39.414853);
sql_geography_builder.AddLine(-84.576496, 39.414800);
sql_geography_builder.AddLine(-84.576522, 39.414932);
sql_geography_builder.AddLine(-84.576528, 39.414964);
sql_geography_builder.AddLine(-84.576095, 39.415015);
sql_geography_builder.AddLine(-84.576064, 39.414853);
sql_geography_builder.EndFigure();
sql_geography_builder.EndGeography();
SqlGeography sql_geography = new SqlGeography();
sql_geography = sql_geography_builder.ConstructedGeography;

StreamWriter stream_writer = new StreamWriter("C:\\PROJECTS\\AMP\\test.csv");
stream_writer.AutoFlush = true;
stream_writer.WriteLine("1?123 TEST AVE?" + sql_geography.ToString() + "?");
stream_writer.Flush();
stream_writer.WriteLine("2?456 TEST AVE?" + sql_geography.ToString() + "?");
stream_writer.Flush();
stream_writer.WriteLine("9?789 TEST AVE?" + sql_geography.ToString() + "?");
stream_writer.Flush();
stream_writer.Close();
stream_writer.Dispose();

SqlConnection sql_connection = new SqlConnection(STRING_SQL_CONNECTION);
sql_connection.Open();

SqlCommand sql_command = new SqlCommand();
sql_command.Connection = sql_connection;
sql_command.CommandTimeout = 0;
sql_command.CommandType = CommandType.Text;
sql_command.CommandText = "BULK INSERT [SPATIAL_TEST].[dbo].[Table_1] " +
                          "FROM 'C:\\PROJECTS\\AMP\\test.csv' " +
                          "WITH (FIELDTERMINATOR = '?', ROWTERMINATOR = '\n') " +
                          "" +
                          "UPDATE [SPATIAL_TEST].[dbo].[Table_1] " +
                          "SET [geo] = geography::STPolyFromText([geo_string], 4326) ";
sql_command.ExecuteNonQuery();

sql_command.Dispose();
sql_connection.Close();
sql_connection.Dispose();

MessageBox.Show("DONE");
}
catch (Exception ex)
{ MessageBox.Show(ex.Message); }