用Python实现，将ORACLE数据库下的表转换为点要素类，并赋予点要素类地理坐标系

【解决办法】：
创建数据库连接使用arcpy.CreateDatabaseConnection_management，
将表转换为点，使用arcpy.MakeXYEventLayer_management，在{spatial_reference}中直接附上所需地理坐标系即可。最后使用arcpy.CopyFeatures_management。

代码如下：

import arcpy



sde_name=arcpy.GetParameterAsText(0)

table_name=arcpy.GetParameterAsText(1)

Field_X=arcpy.GetParameterAsText(2)

Field_Y=arcpy.GetParameterAsText(3)

shp_name=arcpy.GetParameterAsText(4)





arcpy.CreateDatabaseConnection_management(arcpy.env.scratchFolder,

                                          sde_name,

                                          ORACLE,

                                          192.168.220.131/orcl,

                                          DATABASE_AUTH,

                                          grmc_sx,

                                          grmc_sx,

                                          SAVE_USERNAME,

                                          #,

                                          #,

                                          #,

                                          #)



arcpy.env.workspace=arcpy.env.scratchFolder+\\+sde_name+.sde



arcpy.MakeXYEventLayer_management(table_name, Field_X, Field_Y, LAYER_MY, GEOGCS[''GCS_China_Geodetic_Coordinate_System_2000'',DATUM[''D_China_2000'',SPHEROID[''CGCS2000'',6378137.0,298.257222101]],PRIMEM[''Greenwich'',0.0],UNIT[''Degree'',0.0174532925199433]];-400 -400 1000000000;-100000 10000;-100000 10000;8.98315284119521E-09;.001;.001;IsHighPrecision, )

arcpy.CopyFeatures_management(LAYER_MY,arcpy.env.scratchFolder+\\+sde_name+.sde+\\SDE.LAYERMY1)