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PORetrieving date from SQLite database via cursor
 

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  1. PORetrieving date from SQLite database via cursor
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    <p>Iam trying to plot a graph with achartengine where I need an array of dates fetched from tthe database so that I can use it with TimeSeries. However Iam unable to retrieve the dates from the database with a cursor. Kindly help</p> <pre><code>heres my code:- public Date[] getReportDates(ReportGraph reportGraph) { // TODO Auto-generated method stub String [] columns = new String[]{KEY_ROW_ID, KEY_KM, KEY_FUEL_QTY, KEY_FUEL_PRICE, KEY_TOTAL_COST, KEY_MILEAGE, KEY_DATE,KEY_TANK_FULL}; String selectQuery = "SELECT _date FROM fuel_table"; reportCursor = ourDatabase.rawQuery(selectQuery, null); Date[] reportList=null ; int i = 0; int count = reportCursor.getCount(); reportList = new Date[count]; if(reportCursor.moveToFirst()) { do { reportList[i] = (Date)reportCursor.getLong(0); // ERROR here i++; }while(reportCursor.moveToNext()); } reportCursor.close(); return reportList; } code for line chart:- double[] fPrice; double[] fMileage; Date[] fDates; XYMultipleSeriesRenderer rRenderer; XYMultipleSeriesDataset dataset; XYSeriesRenderer priceRenderer, mileageRenderer,dateRenderer; public Intent getIntent(Context context) { FuelStoredInfo reportInfo =new FuelStoredInfo(context); reportInfo.open(); fPrice=reportInfo.getReportData(this); fMileage = reportInfo.getReportMileage(this); fDates = reportInfo.getReportDates(this); reportInfo.close(); TimeSeries fPriceseries = new TimeSeries("Fuel prices"); for(int i=0;i&lt;fDates.length;i++) { fPriceseries.add(fDates[i], fPrice[i]); } TimeSeries fMileageSeries = new TimeSeries("Mileage"); for(int i=0;i&lt;fDates.length;i++) { fMileageSeries.add(fDates[i],fMileage[i]); } // Our second data dataset = new XYMultipleSeriesDataset(); dataset.addSeries(fPriceseries); dataset.addSeries(fMileageSeries); </code></pre> <p><img src="https://i.stack.imgur.com/rVvYq.png" alt="enter image description here"></p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USPooja Gaonkar
    1. USPooja Gaonkar
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COpost your error shown in logcat.
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      1. PORetrieving date from SQLite database via cursor
      1. USMukesh Kumar Singh
    2. COyour error is Cast exception?post your logcat
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      1. PORetrieving date from SQLite database via cursor
      1. USArash GM
    3. COIam unable to run the code as I get the cast exception in the code
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      1. PORetrieving date from SQLite database via cursor
      1. USPooja Gaonkar
 

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