April 2009

Oracle Spatial User

Conference

Oracle Spatial User Conference

April 23, 2009

Westin Tampa Harbour Island Hotel

Tampa, Florida USA

Glenn KronschnablChief Information Officer

First American Spatial

Solutions

April 2009

Oracle Spatial User Conference

Managing

ParcelPoint® on

Oracle Spatial 11g

-Lessons Learned

April 2009

Oracle Spatial User Conference

First American Corporation

• A diversified, international

services provider and a

Fortune 500® company with

over $6.5 Billion in annual sales

• The largest provider of business and real

estate information – First American products

touch over 90% of all property transactions

that occur in the US every year

• First American provides information solutions

to the largest Mortgage and Insurance

companies in the US

First American Spatial

Solutions• Small “Start-up” Division, spun off from Flood

Division along with acquisition of Proxix

Solutions, with vision:

• Focus on spatial data and solutions leveraging

core expertise of accurate location

• Some Products:

• Locational accuracy: ParcelPoint®, PxPoint

• Risk solutions: Flood Risk Score, Flood Model,

Wildfire

• Tax solutions: Premium Tax

“Spatial” is the essential ingredient for our organization to sustain growth

as all new applications feature spatial analysis and analytics

ParcelPoint® Components

•Can be used to attach related information (not necessarily the geometric centroid of the parcel)

•Gives a general point location of the parcel.

1

•Standardized code used by the county to track each property

3

•Latitude and longitude

•Descriptive visual layering

2

•Accurate address processed through our proprietary database

4

ParcelPoint® Coverage & Roadmap

• TO BE ADDED

Technology/Skill Sets

• Develop custom enterprise applications – for

external & internal use

• Oracle 10g, 11g – on-site DBA’s

• BEA WebLogic

• J2EE – on/off-shore development

• GIS

• ESRI Desktop, ArcIMS, ArcSDE – on-site support

• SQL Server

• Geographers/GIS development staff

• Open source (GeoServer, Geotools, uDig)

The Problem

Traditional

GIS Enterprise

Solutions

Silos: Technology & Staff

Spatial

Data

Transactional

Data

Desktop GIS applications

Enterprise applications

Early Solutions: Limited

Success• Early solutions failed - too limited

• How to best move forward?

• Criteria

• Investment, skill sets, enterprise capable (including

mapping), integration of transactional and spatial

data sets, spatial data access

• Option 1: use ESRI SDE (SDE_BINARY) on

top of Oracle 10g

• Option 2: migrate SDE (SQL Server) data to

Oracle 11g Spatial (SDO_GEOM)

Options: Pros/Cons

• Option 1: use ESRI SDE on top of existing

Oracle 10g, using SDE_BINARY format

• Pros: easiest, least costly

• Cons: black box, limited integration between

spatial and business data, results do not take into

account Earth's curvature (less accurate)

• Option 2: migrate SDE (SQL Server) data to

Oracle 11g, using SDO_GEOM

• Pros: better integration, SQL access, leverage

existing Oracle investments, results take into

account the Earth's curvature (more accurate)

• Cons: Oracle spatial learning curve (Dev & DBA’s)

Database Configuration

HP ProLiant DL580 G5 server

32GB RAM

4 quad-core Intel Xeon 2.4GHz

SUSE Linux 10.2 64-bit

Oracle 11.1.0.7 64-bit

HP ProLiant DL580 G5 server

20GB RAM

2 quad-core Intel Xeon 2.4GHz

SUSE Linux 10.2 64-bit

Oracle 11.1.0.7 64-bit

LGWR ASYNC

DataGuard

GigaMAN

Primary

Database

Physical Stand-By

Database

Content Overview

• Spatial layers (all in WGS 84):

• Parcel, Parcel_point, Parcel_load_summary

• FEMA Flood (not Q3 [far superior], includes

LOMA/R’s)

• Streets

• County, State, Zipcode

• Dams & levees

• Others

• NED, National Hydrography Dataset [USGS]

• Wildfire, Storm Surge, Coastline, …

Challenges

• Some of the original difficulties we faced:

• Partitioning for spatial indexes unusable

• We did not use partitioned spatial indexes because

of partition overhead bug; each partition scan takes

around 1ms – (e.g., to scan all 3219 partitions takes

around 3.2s to do simple SDO_RELATE

“mask=ANYINTERACT” query

• Fixed with Patches 6501889 and 6504890

• SDO_AGGR_MBR poor performance on 100+

million (geodetic) layer

• Inability to use Materialized Views w/ Fast Refresh

for join query that includes SDO_GEOMETRY type

in SELECT query (documented limitation)

Applications

• Parcel-Level Geocoding

• Web Mapping Service (WMS)

• Data Layers; Parcel polygons & Points, Flood

polygons, Dam/Levee, National Hydrography

Dataset

• Use open-source GeoServer 1.6.x

• Wrap with security, usage, billing, etc.

• Support for Oracle isn’t on par with PostGIS, etc.

• Provide clients enhanced JavaScript SDK for

use in Google/Virtual Earth

Geocoding Accuracy

Traditional Parcel-Level

Parcel Level Geocoding

Concrete Example

Legacy Interpolated Geocode ParcelPoint Geocode

vs.

A Parcel-based Geocode is the

fundamental building block for

determining the right answer to any

number of analytical questions when

combined with other spatial data sets

24266 Malibu Rd., Malibu, CA 90265

34° 01’49.66” N 118° 42’15.24” W, APN

812870702: Rating Terr: 89, Dist to Coast:

100ft, Surge: Extreme, WildFire: Extreme,

Sinkhole: Low, Hail/Tornado: Low, Property Info:

2-story, Built 1989, Owner: Susanne Summers,

Roof Composition: Cement/Tile, Building

Composition: Masonary/Stucco, Utilities: Gas &

Electric, Valuation: $2.5M, Loan information….

Advantages of Parcel-Level

Geocoding

D E M O N S T R A T I O N

Web Mapping Application

April 2009Oracle Spatial User Conference

Web Mapping

• Government

• Insurance

• Underwriting

• Navigation

• Mapping

• Oil and Pipeline

• Real Estate

• Routing

• Tax

• Utility

• Wireless

Google Earth

Conclusions

• First American Spatial Solutions was at a

decision point

• Needed to choose its spatial platform for the

decade ahead

• Went with x86, SUSE Linux 10, Oracle 11g w/

Spatial

• Successfully navigated thru the transition and

thus far have been pleased with our decision

• Oracle is committed to “spatial” – finally a

viable enterprise solution