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OData Extensions for Data Aggregation

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OData Extensions for Data Aggregation. Ralf Handl, SAP Hubert Heijkers, IBM Gerald Krause, SAP Mike Pizzo, Microsoft 2012 November 9. Where do we want to go. GET ~/Sales. GET ~/Sales? $ aggregate=Amount. GET ~/Sales? $ aggregate=Amount $ groupby Product.

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OData Extensions for Data Aggregation

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  1. OData Extensions for Data Aggregation Ralf Handl, SAP Hubert Heijkers, IBM Gerald Krause, SAP Mike Pizzo, Microsoft 2012 November 9

  2. Where do we want to go

  3. GET ~/Sales

  4. GET ~/Sales?$aggregate=Amount

  5. GET ~/Sales?$aggregate=Amount $groupbyProduct

  6. GET ~/Sales?$aggregate=$groupbyProduct

  7. GET ~/Sales?$aggregate=Amount $groupbyProduct &$orderby=Amount desc

  8. GET ~/Sales?$aggregate=Amount $groupby Product &$filter=Amount ge 8

  9. GET ~/Sales?$aggregate=$filter=Amount ge 8:Amount $groupbyProduct

  10. GET ~/Sales?$aggregate=sum(Amount) ,max(Amount) as MaxAmount $groupby Product

  11. GET ~/Sales?$aggregate=count() as SalesCount $groupbyProduct

  12. $rollup=(Country,Customer),(ProductGroup,Product)

  13. Open Topics • Links for „drillinginto“ aggregatedentities • Hierarchies: parent-child, ragged, … • Hierarchyfunctions: descendants(), siblings() • Expressionsin $aggregate: sum(Revenue) - sum(Costs) asProfit • References to annotations for units, currencies, texts

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