Spatial data load

Question

Hi,
we have couple of files to be loaded into Oracle spatial.
One file has columns like SITE, LAT(NAD83),LON(NAD83),LAT(DEGREE),LAT(MIN),LAT(SEC),
LON(DEGREE),LON(MIN),LON(MIN).
sample data(Plymouth,37.237778,121.832111,37,14,16,121,49,55.6)
and other file has SITENUM,LAT(DEGREE),LAT(MIN),LAT(SEC),LON(DEGREE),LON(MIN),LON(SEC)
Sample data(1,24,55,6.34,80,38,6.99)
I can be able to create the table structures to accommodate the
data,But I'm not sure to setting up the data in order while loading it.I know how to update the metadata and creating spatial indexes once the data successfully loaded.
My question is how to organize the coordinates using SDO_GEOMETRY?
Could somebody help me to create table structures for those files and load the data?
Thanks in advance
Scott

Answer 1

Hi Scott,
I was able to get this to work for the first one:
create table a (site varchar2(20),geometry mdsys.sdo_geometry,
latd number, latm number, lats number,
lond number, lonm number, lons number);
then I made a control file called a.ctl that included the data:
LOAD DATA
INFILE *
INTO TABLE a
replace
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
site,
geometry COLUMN OBJECT
( sdo_gtype constant 2001,
sdo_srid constant 8265,
SDO_POINT COLUMN OBJECT
( Y INTEGER EXTERNAL,
X INTEGER EXTERNAL
latd,
latm,
lats,
lond,
lonm,
lons
begindata
Plymouth,37.237778,121.832111,37,14,16,121,49,55.6
I loaded the data like this:
sqlldr scott/tiger a.ctl
Note data is loaded into spatial as long/lat, so I reversed x and y in the sdo_point field. Also, the SRID for nad83 is 8265.
Regarding the second set of data, you will need to write a function that takes as input degrees, minutes, seconds in lat/long and returns an sdo_geometry object that can be loaded.
Hope this helps,
Dan