如何使用 Python jaydebiapi cursor.executemany() 将地理数据插入 SQL Server？答案

【问题标题】：How to insert geography data to SQL Server with Python jaydebiapi cursor.executemany()?如何使用 Python jaydebiapi cursor.executemany() 将地理数据插入 SQL Server？
【发布时间】：2020-08-18 23:22:41
【问题描述】：

我确实使用 cursor.execute() 将数据插入 SQL Server。

这是我的代码 sn-p：

insert_str = """INSERT INTO [test].[DBO].[SPATIAL] VALUES({},{});"""

geography = "geography::STGeomFromText('LINESTRING(-95.323167 29.985500, -95.323333 29.985500)', 4326)"

cursor.execute(insert_str.format(123, geography))

但是当我使用cursor.executemany() 和下面的代码sn-p 时，它不起作用：

insert_str = """INSERT INTO [test].[DBO].[SPATIAL] VALUES(?,?);"""

geography = "geography::STGeomFromText('LINESTRING(-95.323167 29.985500, -95.323333 29.985500)', 4326)"

cursor.executemany(insert_str, [(122, geography)])

这是回溯日志：

Traceback (most recent call last):
  File "spatial_point.py", line 35, in <module>
    run()
  File "spatial_point.py", line 33, in run
    cursor.executemany(insert_str, [(122, geography)])
  File "/root/anaconda3/lib/python3.7/site-packages/jaydebeapi/__init__.py", line 518, in executemany
    update_counts = self._prep.executeBatch()
jpype._jexception.BatchUpdateExceptionPyRaisable: java.sql.BatchUpdateException: A .NET Framework error occurred during execution of user-defined routine or aggregate "geography":
System.FormatException: 24114: The label geography::STGeomFro in the input well-known text (WKT) is not valid. Valid labels are POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, GEOMETRYCOLLECTION, CIRCULARSTRING, COMPOUNDCURVE, CURVEPOLYGON and FULLGLOBE (geography Data Type only).
System.FormatException:
   at Microsoft.SqlServer.Types.OpenGisTypes.ParseLabel(String input)
   at Microsoft.SqlServer.Types.WellKnownTextReader.ParseTaggedText(OpenGisType type)
   at Microsoft.SqlServer.Types.WellKnownTextReader.Read(OpenGisType type, Int32 srid)
   at Microsoft.SqlServer.Types.SqlGeography.ParseText(OpenGisType type, SqlChars taggedText, Int32 srid)
   at Microsoft.SqlServer.Types.SqlGeography.GeographyFromText(OpenGisType type, SqlChars taggedText, Int32 srid)
   at Microsoft.SqlServer.Types.SqlGeography.Parse(SqlString s)

有人知道这里出了什么问题吗？谢谢

【问题讨论】：

标签： python sql-server sqlgeography jaydebeapi

【解决方案1】：

第一种方法只是格式化文本 INSERT INTO [test].[DBO].[SPATIAL] VALUES({},{}); 并将位置参数替换为值 123 和 "geography::STGeomFromText('LINESTRING(-95.323167 29.985500, -95.323333 29.985500)', 4326)"。

第二种方法使用占位符，因此语句应该不同。您需要将地理实例的 WKT 表示和空间参考 ID 作为参数传递给 geography::STGeomFromText 调用：

insert_str = """INSERT INTO [test].[DBO].[SPATIAL] VALUES(?, geography::STGeomFromText(?, ?);"""
cursor.executemany(insert_str, [(122, 'LINESTRING(-95.323167 29.985500, -95.323333 29.985500)', 4326)])

【讨论】：