有人知道如何在select语句中抑制/忽略错误吗?
我的select语句使用STLineFromText函数,当它遇到无效行时会引发错误。我可以忽略错误的行,但实际上不能改变我的源数据。
这是一个演示我问题的示例查询:
SELECT geography::STLineFromText('LINESTRING(-74.2204037952351 40.4283173372472,-74.2204851952350 40.4283519372471)', 4326) UNION ALL
SELECT geography::STLineFromText('LINESTRING(-74.2316367952177 40.4386102038979,-74.2313671952181 40.4388540705641)', 4326) UNION ALL
SELECT geography::STLineFromText('LINESTRING(-74.2229282618978 40.4252709372519,-74.2229171285645 40.4252638039186,-74.2229282618978 40.4252709372519,-74.2227441952315 40.4251499372521,-74.2231121285642 40.4243291372534)', 4326) UNION ALL
SELECT geography::STLineFromText('LINESTRING(-74.2418989952017 40.4417621372263,-74.2417773285352 40.4417915372263)', 4326) UNION ALL
SELECT geography::STLineFromText('LINESTRING(-74.2166069952410 40.4334496039059,-74.2158269952422 40.4336396039056)', 4326)
以下是错误信息:
Msg 6522, Level 16, State 1, Line 2
A .NET Framework error occurred during execution of user-defined routine or aggregate "geography":
System.ArgumentException: 24200: The specified input does not represent a valid geography instance.
System.ArgumentException:
at Microsoft.SqlServer.Types.SqlGeography.ConstructGeographyFromUserInput(GeoData g, Int32 srid)
at Microsoft.SqlServer.Types.SqlGeography.GeographyFromText(OpenGisType type, SqlChars taggedText, Int32 srid)
理想情况是只返回#1、#2、#4和#5,忽略#3。
谢谢!
OPENQUERY
从其结果中进行选择。这并不是理想的(甚至还很远),但应该能够正常工作。 - Adam Robinson