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Spatial Data Management Using

Oracle 9iDavid Lapp, Farallon Geographics, Inc.

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AgendaOracle Spatial overviewWhen is it the appropriate technology?DemoQ&A

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Capability OverviewNative spatial data typeSeamless indexed spatial data storageRobust spatial APICross-platform access with centralized spatial “business rules”Traditional Oracle advantages available for spatial data

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The Context For SpatialConcurrent multi-user transactionsDirect interoperability across GIS productsExisting Oracle investment (systems/expertise)

Scalability (> 500M)Database-centric philosophy

Data outlives GIS appsCentralized constraints, security…Fully leverage RDBMS (best practice)

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Case study: CA DOC

Business rules

Automatic synch of location fields

Automatic management of zone fields

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Derive geometry from tabular input

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Business rules prevent corruption

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Again, derive geometry from tabular input (regardless of application)

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Again, business rules enforced (regardless of application)

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Update geometry based on tabular coordinate update

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Business rules enforced

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Update geometry based on tabular coordinate update (regardless of application)

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Business rule preventing inconsistent location updates

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Geometry update …

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…is synchronized in coordinate fields

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Case study: San Mateo CO

Automatic feature management

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ROWBLOCK maintenance

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Leverage parcel maintenance…

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…for ROWBLOCK maintenance

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Leverage centerline maintenance…

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…for STNODE maintenance

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9i EnhancementsSpatial capability in every Oracle database“Spatial” product for high end functions“Locator” for basic functionsMany performance and stability improvementsMany new functions (i.e. utility functions, aggregate functions…)

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10g EnhancementsTopologyGeoRasterNetworkSimplified spatial SQLPerformance improvementsMany utility subprograms (i.e., SDO_UTIL.TO_GMLGEOMETRY)

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Thank you for attending.

David LappFarallon Geographics

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