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#------------------------------------------------------------------------------
# bind_sdo.py (Section 4.4)
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
#------------------------------------------------------------------------------
import cx_Oracle
import db_config
con = cx_Oracle.connect(db_config.user, db_config.pw, db_config.dsn)
cur = con.cursor()
# Create table
cur.execute("""begin
execute immediate 'drop table testgeometry';
exception when others then
if sqlcode <> -942 then
raise;
end if;
end;""")
cur.execute("""create table testgeometry (
id number(9) not null,
geometry MDSYS.SDO_GEOMETRY not null)""")
# Create and populate Oracle objects
typeObj = con.gettype("MDSYS.SDO_GEOMETRY")
elementInfoTypeObj = con.gettype("MDSYS.SDO_ELEM_INFO_ARRAY")
ordinateTypeObj = con.gettype("MDSYS.SDO_ORDINATE_ARRAY")
obj = typeObj.newobject()
obj.SDO_GTYPE = 2003
obj.SDO_ELEM_INFO = elementInfoTypeObj.newobject()
obj.SDO_ELEM_INFO.extend([1, 1003, 3])
obj.SDO_ORDINATES = ordinateTypeObj.newobject()
obj.SDO_ORDINATES.extend([1, 1, 5, 7])
pointTypeObj = con.gettype("MDSYS.SDO_POINT_TYPE")
obj.SDO_POINT = pointTypeObj.newobject()
obj.SDO_POINT.X = 1
obj.SDO_POINT.Y = 2
obj.SDO_POINT.Z = 3
print("Created object", obj)
# Add a new row
print("Adding row to table...")
cur.execute("insert into testgeometry values (1, :objbv)", objbv = obj)
print("Row added!")
# (Change below here)
# Define a function to dump the contents of an Oracle object
def dumpobject(obj, prefix = " "):
if obj.type.iscollection:
print(prefix, "[")
for value in obj.aslist():
if isinstance(value, cx_Oracle.Object):
dumpobject(value, prefix + " ")
else:
print(prefix + " ", repr(value))
print(prefix, "]")
else:
print(prefix, "{")
for attr in obj.type.attributes:
value = getattr(obj, attr.name)
if isinstance(value, cx_Oracle.Object):
print(prefix + " " + attr.name + " :")
dumpobject(value, prefix + " ")
else:
print(prefix + " " + attr.name + " :", repr(value))
print(prefix, "}")
# Query the row
print("Querying row just inserted...")
cur.execute("select id, geometry from testgeometry")
for (id, obj) in cur:
print("Id: ", id)
dumpobject(obj)
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