Objective C: CoreData and aggregation
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Published on 2010-06-16T20:40:29Z
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Given a CoreData-Entity with an date (days) and an ammount called Transaction.
Is it with CoreData possible (and how) to aggregate/group the 'table' (with all Transactions) by Date and calculate the sum of the day in a second column/attribute?
(the SQL-Solution would be SELECT date, sum(ammount) FROM transaction GROUP BY date
)
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