how to delete a record from ORMLITE?
23,049
deleteBuilder.where().eq("FIELD_NAME", arg);
deleteBuilder.delete();
Update:
For example :
//Get helper
DatabaseHelper helper = OpenHelperManager.getHelper(App.getContext(), DatabaseHelper.class);
//get dao
Dao dao = helper.getDao(YOUR_CLASS.class);
//delete elements from table in field by arg
DeleteBuilder<CanteenLog, Integer> deleteBuilder = dao.deleteBuilder();
deleteBuilder.where().eq("FIELD_NAME", arg);
deleteBuilder.delete();
Good luck!
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Sourabh Saldi
Updated on April 24, 2020Comments
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Sourabh Saldi about 4 years
I need to delete a record from ORMLite Database I can delete a record by id using as below
@Override public void Delete(int id) throws SQLException { this.dao.deleteById(id); }
but what if I have to delete a record from same table not by id but by name or any other field I want something like
public void Deletefromcanteen(String name,MealType mealtype) { this.dao.deletebyName(name); }
what query should i write using querybuilder to delete a record where name = name and mealtype = say (lunch)
I tried something like this in my databasehelper class
public void deletefromcanteen(int id, String mealtype) { try { Dao<CanteenLog, Integer> canteenDao = getCanteen(); DeleteBuilder<CanteenLog, Integer> deleteBuilder = canteenDao .deleteBuilder(); deleteBuilder.where().eq("user_id", id).and().eq("meal", mealtype); canteenDao.delete(deleteBuilder.prepare()); } catch (Exception e) { ... } }
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Sourabh Saldi almost 12 yearsI don't have select query for this table again first i'll have to build select query isn't it
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Sourabh Saldi almost 12 years@llya Demidove can you please elaborate the imlementation how it should be