I have written an app where i have to insert its data into sqlite database and show it on one activity. But my code is showing "No record Found" even if i have inserted it.
I have tried using different options like moving cursor first to the first record and then using loop iterate over the record.
Inserting data into database
private void saveToDB() {
SQLiteDatabase database = new ChildMonitoringAppDBHelper(this).getWritableDatabase();
ContentValues values = new ContentValues();
values.put(ChildMonitoringAppDBHelper.CHILD_NAME, name.getText().toString());
values.put(ChildMonitoringAppDBHelper.CHILD_AGE, age.getText().toString());
values.put(ChildMonitoringAppDBHelper.CHILD_DOB, dob.getText().toString());
values.put(ChildMonitoringAppDBHelper.CHILD_HEIGHT, height.getText().toString());
values.put(ChildMonitoringAppDBHelper.CHILD_WEIGHT, weight.getText().toString());
database.insert(ChildMonitoringAppDBHelper.CHILD_TABLE_NAME, null, values);
database.close();
}
Retrieving data from database
public ArrayList<Child> readFromDB()
{
ArrayList<Child> List = new ArrayList<>();
SQLiteDatabase database = new ChildMonitoringAppDBHelper(this).getReadableDatabase();
Cursor cursor = database.rawQuery("select * from " + ChildMonitoringAppDBHelper.CHILD_TABLE_NAME, null);
cursor.moveToFirst();
while(!cursor.isAfterLast())
{
Child child = new Child(cursor.getString(cursor.getColumnIndex("CHILD_NAME")), cursor.getString(cursor.getColumnIndex("CHILD_AGE")), cursor.getString(cursor.getColumnIndex("CHILD_DOB")), cursor.getString(cursor.getColumnIndex("CHILD_HEIGHT")), cursor.getString(cursor.getColumnIndex("CHILD_WEIGHT")));
List.add(child);
cursor.moveToNext();
}
cursor.close();
return List;
}
It should display the record entered but it is making the toast "No Record found".
Cursor cursor = database.rawQuery("select * from " + ChildMonitoringAppDBHelper.CHILD_TABLE_NAME, null);
if (cursor.moveToFirst())
{
do {
Child child = new Child(cursor.getString(cursor.getColumnIndex("CHILD_NAME")), cursor.getString(cursor.getColumnIndex("CHILD_AGE")), cursor.getString(cursor.getColumnIndex("CHILD_DOB")), cursor.getString(cursor.getColumnIndex("CHILD_HEIGHT")), cursor.getString(cursor.getColumnIndex("CHILD_WEIGHT")));
List.add(child);
} while (cursor.moveToNext());
}
cursor.close();
return List;
Can you try this code and see it if it works for you?
public ArrayList<Child> readFromDB()
{
List list = new ArrayList<Child>();
Cursor cursor = database.rawQuery("select * from " +
ChildMonitoringAppDBHelper.CHILD_TABLE_NAME, null);
SQLiteDatabase database = this.getWritableDatabase();
Cursor cursor = database.rawQuery(selectQuery, null);
if (cursor.moveToFirst())
{
do
{
Child child = new Child(cursor.getString(cursor.getColumnIndex("CHILD_NAME")),
cursor.getString(cursor.getColumnIndex("CHILD_AGE")),
cursor.getString(cursor.getColumnIndex("CHILD_DOB")),
cursor.getString(cursor.getColumnIndex("CHILD_HEIGHT")),
cursor.getString(cursor.getColumnIndex("CHILD_WEIGHT")));
list.add(child);
}
while (cursor.moveToNext());
}
cursor.close();
// return list of inserted values
return list;
}
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