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POSQLite vs Memory
 

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    <p>I have a situation with my app.</p> <p>Suppose I have 6 users, each user can have up to 9 score entries (i.e score 1000 points at 8:00pm with gold collected 3, silver 4 etc etc), say score per stage and 9 stages.</p> <p>All these scores are being taken from an API call, so it can update with an interval of 3+minutes.</p> <ul> <li>Operations I need to do on this data is <ul> <li>find the nearest min, max record from stage 4.</li> <li>and some more operations like add or subtract two scores etc</li> </ul></li> </ul> <p>All these 6 users, and their score records are already in database, being updated in needed after the API call.</p> <p>Now my questions is :</p> <p>Is this a better way for such kind of data (data of scores here) to keep all the data for all the 6 users in memory in NSArray or NSDictionary, and find min and max in that array by a min-max algorithm.</p> <p>OR</p> <p>It should be taken from Database by a query like " WHERE score&lt;=200 " AND " WHERE score >=200", in short, 2 database queries which return nearest min and max record each, and not keeping all the data in memory.</p> <p>What we are focusing on is speed, and memory usage both. The point is, Would a DB call be fast and efficient to find min and max OR a search for min,max in an Array of all the records from DB. All records can be 6users * 9scores for each = 54. Update time for records can be 3+ minutes. Frequency of finding min max for certain values are high.</p> <p>Please ask, if any more details are required. Thanks in advance.</p>
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