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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 Martin Zurmühl, SAP 20 August 2013. Where do we want to go. Simple Composable Query Language. $apply= transformation / transformation / … Transformations Subset

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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 Martin Zurmühl, SAP 20 August 2013

  2. Where do we want to go

  3. Simple Composable Query Language $apply= transformation/ transformation/ … Transformations Subset topcount(…), topsum(…), …, bottompercent(…), filter(…), identity Reshape aggregate(…), expand(…) Fork & Merge groupby(…, sequence) , concat(sequence, sequence, …) Custom Functions sequence

  4. GET ~/Sales

  5. GET ~/Sales?$apply=aggregate(Amount)

  6. GET ~/Sales?$apply=groupby((Product),aggregate(Amount))

  7. GET ~/Sales?$apply=groupby((Product),aggregate())

  8. GET ~/Sales?$apply=groupby((Product))

  9. GET ~/Sales?$apply=groupby((Product),aggregate(Amount)) &$orderby=Amount desc

  10. GET ~/Sales?$apply=groupby((Product),aggregate(Amount)) &$filter=Amount ge 8

  11. GET ~/Sales?$apply=filter(Amount ge8) /groupby((Product),aggregate(Amount))

  12. GET ~/Sales?$apply=groupby((Product),aggregate(Amount, Amount with max as MaxAmount))

  13. GET ~/Sales?$apply=groupby((Product), aggregate($count as SalesCount))

  14. GET ~/Sales?$apply=groupby((rollup(Country,Customer),rollup(Category,Product)), aggregate(Amount))

  15. GET ~/Sales?$apply=groupby((Product,Country),aggregate(Amount)) /groupby((Country),topcount(1,Amount))

  16. GET ~/Sales?$apply=groupby((Product,Country),aggregate(Amount)) /groupby((Country),M.TopCountAndBalance(N=1,A='Amount'))

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