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OData Extensions for Data Aggregation

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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