本文详细介绍了在Oracle的函数或存储过程中如何使用ST_GEOMETRY函数，包括ST_ASTEXT、ST_CENTROID、ST_NUMGEOMETRIES等操作，并强调了在PL/SQL相关过程中的使用方式。
在esri网站上无意见看到一篇文章,写到在Oracle的函数或存储过程中使用ST_GEOMETRY函数的方法.
原文选段如下:
[quote]All geometry operators, such as st_astext, st_centroid, st_numgeometries, etc. reside in the st_geometry_operators package. All relational operators, such as st_intersects, st_within, st_contains, etc. reside in the st_relation_operators package.
When referencing any st_* operator as a function, remember to include the _f clause after its name to reference the appropriate function in the package body.
[/quote]
即通过st_*_operator包和"_f"后缀,在PL/SQL相关的过程中,可使用ST_GEOMETRY的一些函数.
原文地址:http://support.esri.com/en/knowledgebase/techarticles/detail/36094
原文选段如下:
[quote]All geometry operators, such as st_astext, st_centroid, st_numgeometries, etc. reside in the st_geometry_operators package. All relational operators, such as st_intersects, st_within, st_contains, etc. reside in the st_relation_operators package.
When referencing any st_* operator as a function, remember to include the _f clause after its name to reference the appropriate function in the package body.
[/quote]
即通过st_*_operator包和"_f"后缀,在PL/SQL相关的过程中,可使用ST_GEOMETRY的一些函数.
原文地址:http://support.esri.com/en/knowledgebase/techarticles/detail/36094
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