select

to_char(regexp_replace(sdo_util.to_gmlgeometry(sdo_geom.sdo_difference(

SDO_GEOMETRY

(

2003, -- 二维平面

8307, -- 大地坐标

NULL, -- SDO_POINT_TYPE is null

SDO_ELEM_INFO_ARRAY -- SDO_ELEM_INFO attribute (see Table 4-2 for values)

(

1, -- Offset is 1

1003, -- 多边形

1 -- Interpretation is 1 if line string is connected by straight lines.

),

SDO_ORDINATE_ARRAY -- SDO_ORDINATES attribute

(

112.291389,27.621667,

112.633333,26.908333,

112.358333,25.561667,

111.340000,25.276667,

109.316667,26.583333,

109.355833,27.882500,

111.788889,28.318333,

112.291389,27.621667

)

),

SDO_GEOMETRY

(

2003, -- 二维平面

8307, -- 大地坐标

NULL, -- SDO_POINT_TYPE is null

SDO_ELEM_INFO_ARRAY -- SDO_ELEM_INFO attribute (see Table 4-2 for values)

(

1, -- Offset is 1

1003, -- 二维平面

1 -- Interpretation is 1 if line string is connected by straight lines.

),

SDO_ORDINATE_ARRAY -- SDO_ORDINATES attribute

(

112.200523,28.515756,

112.209444,28.515824,

112.218365,28.515756,

112.227284,28.515550,

112.236197,28.515206,

112.245101,28.514726,

112.253995,28.514108,

112.262874,28.513353,

112.271738,28.512462,

112.280582,28.511435,

112.289404,28.510271,

112.298202,28.508972,

112.306972,28.507538,

112.315712,28.505968,

112.324419,28.504265,

112.333091,28.502427,

112.341724,28.500456,

112.350317,28.498353,

112.358867,28.496117,

112.367370,28.493751,

112.375825,28.491253,

112.384228,28.488626,

112.392578,28.485870,

112.400871,28.482986,

112.409105,28.479974,

112.417278,28.476836,

112.425386,28.473573,

112.433428,28.470185,

112.441401,28.466674,

112.449303,28.463041,

112.457130,28.459286,

112.464882,28.455412,

112.472554,28.451419,

112.480146,28.447308,

112.487654,28.443081,

112.495077,28.438739,

112.502412,28.434284,

112.509656,28.429716,

112.516808,28.425037,

112.523866,28.420249,

112.530827,28.415353,

112.537689,28.410351,

112.544450,28.405243,

112.551108,28.400033,

112.557661,28.394720,

112.564107,28.389308,

112.570444,28.383797,

112.576670,28.378189,

112.582783,28.372486,

112.588782,28.366690,

112.594663,28.360803,

112.600427,28.354826,

112.606071,28.348761,

112.611592,28.342610,

112.616991,28.336374,

112.622264,28.330057,

112.627411,28.323660,

112.632429,28.317184,

112.637318,28.310632,

112.642075,28.304006,

112.646700,28.297307,

112.651190,28.290538,

112.655546,28.283701,

112.659764,28.276798,

112.663845,28.269832,

112.667786,28.262803,

112.671587,28.255715,

112.675247,28.248569,

112.678763,28.241368,

112.682137,28.234114,

112.685365,28.226810,

112.688448,28.219456,

112.691385,28.212056,

112.694174,28.204613,

112.696814,28.197127,

112.699306,28.189602,

112.701648,28.182039,

112.703840,28.174442,

112.705881,28.166812,

112.707770,28.159152,

112.709506,28.151464,

112.711091,28.143750,

112.712522,28.136013,

112.713799,28.128256,

112.714923,28.120479,

112.715892,28.112687,

112.716707,28.104881,

112.717367,28.097064,

112.717873,28.089237,

112.718223,28.081404,

112.718419,28.073567,

112.718459,28.065728,

112.718345,28.057890,

112.718075,28.050054,

112.717651,28.042224,

112.717071,28.034401,

112.716338,28.026589,

112.715450,28.018789,

112.714408,28.011004,

112.713213,28.003237,

112.711864,27.995488,

112.710363,27.987762,

112.708709,27.980060,

112.706904,27.972385,

112.704948,27.964739,

112.702841,27.957124,

112.700585,27.949542,

112.698179,27.941997,

112.695625,27.934489,

112.692923,27.927023,

112.690075,27.919599,

112.687081,27.912219,

112.683942,27.904887,

112.680659,27.897605,

112.677233,27.890374,

112.673665,27.883197,

112.669957,27.876076,

112.666109,27.869014,

112.662123,27.862011,

112.658000,27.855071,

112.653741,27.848196,

112.649348,27.841387,

112.644821,27.834647,

112.640163,27.827978,

112.635374,27.821381,

112.630456,27.814859,

112.625411,27.808414,

112.620241,27.802047,

112.614946,27.795761,

112.609528,27.789558,

112.603990,27.783439,

112.598332,27.777406,

112.592557,27.771461,

112.586666,27.765606,

112.580661,27.759843,

112.574544,27.754173,

112.568316,27.748598,

112.561981,27.743120,

112.555539,27.737740,

112.548992,27.732460,

112.542343,27.727282,

112.535594,27.722207,

112.528746,27.717236,

112.521802,27.712372,

112.514763,27.707616,

112.507633,27.702969,

112.500412,27.698432,

112.493104,27.694007,

112.485710,27.689695,

112.478233,27.685498,

112.470676,27.681416,

112.463039,27.677452,

112.455326,27.673606,

112.447539,27.669879,

112.439680,27.666272,

112.431751,27.662788,

112.423756,27.659425,

112.415696,27.656187,

112.407574,27.653073,

112.399393,27.650084,

112.391154,27.647222,

112.382861,27.644488,

112.374515,27.641881,

112.366120,27.639403,

112.357677,27.637056,

112.349190,27.634838,

112.340661,27.632751,

112.332092,27.630796,

112.323486,27.628974,

112.314846,27.627284,

112.306175,27.625727,

112.297474,27.624305,

112.288747,27.623016,

112.279995,27.621862,

112.271223,27.620843,

112.262432,27.619959,

112.253625,27.619211,

112.244805,27.618599,

112.235974,27.618122,

112.227135,27.617782,

112.218291,27.617577,

112.209444,27.617509,

112.200598,27.617577,

112.191754,27.617782,

112.182915,27.618122,

112.174084,27.618599,

112.165264,27.619211,

112.156457,27.619959,

112.147666,27.620843,

112.138893,27.621862,

112.130142,27.623016,

112.121415,27.624305,

112.112714,27.625727,

112.104043,27.627284,

112.095403,27.628974,

112.086797,27.630796,

112.078228,27.632751,

112.069699,27.634838,

112.061212,27.637056,

112.052769,27.639403,

112.044374,27.641881,

112.036028,27.644488,

112.027735,27.647222,

112.019496,27.650084,

112.011314,27.653073,

112.003193,27.656187,

111.995133,27.659425,

111.987137,27.662788,

111.979209,27.666272,

111.971350,27.669879,

111.963563,27.673606,

111.955850,27.677452,

111.948213,27.681416,

111.940655,27.685498,

111.933178,27.689695,

111.925785,27.694007,

111.918477,27.698432,

111.911256,27.702969,

111.904126,27.707616,

111.897087,27.712372,

111.890143,27.717236,

111.883295,27.722207,

111.876546,27.727282,

111.869897,27.732460,

111.863350,27.737740,

111.856908,27.743120,

111.850573,27.748598,

111.844345,27.754173,

111.838228,27.759843,

111.832223,27.765606,

111.826332,27.771461,

111.820557,27.777406,

111.814899,27.783439,

111.809361,27.789558,

111.803943,27.795761,

111.798648,27.802047,

111.793478,27.808414,

111.788433,27.814859,

111.783515,27.821381,

111.778726,27.827978,

111.774068,27.834647,

111.769541,27.841387,

111.765148,27.848196,

111.760889,27.855071,

111.756765,27.862011,

111.752779,27.869014,

111.748932,27.876076,

111.745223,27.883197,

111.741656,27.890374,

111.738230,27.897605,

111.734947,27.904887,

111.731808,27.912219,

111.728814,27.919599,

111.725966,27.927023,

111.723264,27.934489,

111.720710,27.941997,

111.718304,27.949542,

111.716048,27.957124,

111.713941,27.964739,

111.711985,27.972385,

111.710179,27.980060,

111.708526,27.987762,

111.707025,27.995488,

111.705676,28.003237,

111.704481,28.011004,

111.703439,28.018789,

111.702551,28.026589,

111.701818,28.034401,

111.701238,28.042224,

111.700814,28.050054,

111.700544,28.057890,

111.700430,28.065728,

111.700470,28.073567,

111.700666,28.081404,

111.701016,28.089237,

111.701521,28.097064,

111.702182,28.104881,

111.702997,28.112687,

111.703966,28.120479,

111.705090,28.128256,

111.706367,28.136013,

111.707798,28.143750,

111.709382,28.151464,

111.711119,28.159152,

111.713008,28.166812,

111.715049,28.174442,

111.717241,28.182039,

111.719583,28.189602,

111.722074,28.197127,

111.724715,28.204613,

111.727504,28.212056,

111.730441,28.219456,

111.733524,28.226810,

111.736752,28.234114,

111.740125,28.241368,

111.743642,28.248569,

111.747302,28.255715,

111.751103,28.262803,

111.755044,28.269832,

111.759125,28.276798,

111.763343,28.283701,

111.767699,28.290538,

111.772189,28.297307,

111.776814,28.304006,

111.781571,28.310632,

111.786460,28.317184,

111.791478,28.323660,

111.796625,28.330057,

111.801898,28.336374,

111.807296,28.342610,

111.812818,28.348761,

111.818462,28.354826,

111.824225,28.360803,

111.830107,28.366690,

111.836106,28.372486,

111.842219,28.378189,

111.848445,28.383797,

111.854782,28.389308,

111.861228,28.394720,

111.867781,28.400033,

111.874439,28.405243,

111.881200,28.410351,

111.888062,28.415353,

111.895023,28.420249,

111.902081,28.425037,

111.909233,28.429716,

111.916477,28.434284,

111.923812,28.438739,

111.931235,28.443081,

111.938743,28.447308,

111.946335,28.451419,

111.954007,28.455412,

111.961759,28.459286,

111.969586,28.463041,

111.977488,28.466674,

111.985461,28.470185,

111.993503,28.473573,

112.001611,28.476836,

112.009784,28.479974,

112.018018,28.482986,

112.026311,28.485870,

112.034661,28.488626,

112.043064,28.491253,

112.051519,28.493751,

112.060022,28.496117,

112.068572,28.498353,

112.077164,28.500456,

112.085798,28.502427,

112.094470,28.504265,

112.103177,28.505968,

112.111917,28.507538,

112.120687,28.508972,

112.129485,28.510271,

112.138307,28.511435,

112.147151,28.512462,

112.156014,28.513353,

112.164894,28.514108,

112.173788,28.514726,

112.182692,28.515206,

112.191605,28.515550,

112.200523,28.515756

)

),

0.5

)),'</?[^>]*>|nbsp;|&','')) rd

from dual

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