Develop Reference

android.database.CursorIndexOutOfBoundsException -- my cursor is empty

So I have been trying to query in my sqlite database for my android app. However, it seems like my cursor is not working like it is supposed too as I can get any results.
I know that I only have 3 items in my database, but what I put in my query are valid attributes for my 3 items stored. But there is still no result.
Below is my code for the query function and my database model.
// To get data from DB by querying the items selected
public String getData(int firstSelection, int secondSelection, int thirdSelection,
int fourthSelection, int fifthSelection)
{
SQLiteDatabase db = dbHelper.getWritableDatabase();
String firstSelectionStr, secondSelectionStr, thirdSelectionStr, fourthSelectionStr, fifthSelectionStr;
firstSelectionStr = Integer.toString(firstSelection);
secondSelectionStr = Integer.toString(secondSelection);
thirdSelectionStr = Integer.toString(thirdSelection);
fourthSelectionStr = Integer.toString(fourthSelection);
fifthSelectionStr = Integer.toString(fifthSelection);
//String[] columns = {DBHelper.UID,DBHelper.CNAME};
//Cursor cursor = db.query(DBHelper.TABLE_NAME,columns,null,null,null,null,null);
String selectQuery = "SELECT * FROM "+ DBHelper.TABLE_NAME + " WHERE " + DBHelper.FIRST_ATTRIBUTE + "=? "
+ " AND " + DBHelper.SECOND_ATTRIBUTE + "=? " + " AND " + DBHelper.THIRD_ATTRIBUTE + "=? " + " AND " + DBHelper.FOURTH_ATTRIBUTE + "=? "
+ " AND " + DBHelper.FIFTH_ATTRIBUTE + "=?";
Cursor cursor=db.rawQuery(selectQuery, new String[] {firstSelectionStr, secondSelectionStr, thirdSelectionStr,
fourthSelectionStr, fifthSelectionStr});
StringBuilder buffer = new StringBuilder();
cursor.moveToFirst();
if (cursor != null) {
int tresult = cursor.getCount();
// Append every data together
do {
//int cursorID = cursor.getInt(cursor.getColumnIndex(DBHelper.UID));
String chosenItem = cursor.getString(cursor.getColumnIndex(DBHelper.CNAME));
buffer.append(chosenItem + " ");
} while (cursor.moveToNext());
/*while (cursor.moveToNext())
{
//int cursorID = cursor.getInt(cursor.getColumnIndex(DBHelper.UID));
String chosenItem = cursor.getString(cursor.getColumnIndex(DBHelper.CNAME));
buffer.append(chosenItem + " ");
}*/
}
return buffer.toString();
}
static class DBHelper extends SQLiteOpenHelper
{
private static final String DATABASE_NAME = "CraftsAppDatabase.db"; // Database Name
private static final String TABLE_NAME = "CraftTools"; // Table Name
private static final String RESULT_TABLE = "Result"; // Table Name
private static final int DATABASE_Version = 1; // Database Version
private static final String UID="_id"; // Column I (Primary Key)
private static final String CNAME = "Craft_Name"; //Column II
private static final String RESULT = "Result_Name"; //Column II
private static final String FIRST_ATTRIBUTE = "First_Attribute"; //Column III
private static final String SECOND_ATTRIBUTE = "Second_Attribute"; //Column IV
private static final String THIRD_ATTRIBUTE = "Third_Attribute"; //Column V
private static final String FOURTH_ATTRIBUTE = "Fourth_Attribute"; //Column VI
private static final String FIFTH_ATTRIBUTE = "Fifth_Attribute"; //Column VII
private static final String CREATE_TABLE = "CREATE TABLE "+TABLE_NAME+
" ("+UID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+CNAME+" VARCHAR(255)" +
", "+FIRST_ATTRIBUTE+" VARCHAR(255), "+SECOND_ATTRIBUTE+" VARCHAR(255)" +
", "+THIRD_ATTRIBUTE+" VARCHAR(255), "+FOURTH_ATTRIBUTE+" VARCHAR(255)" +
", "+FIFTH_ATTRIBUTE+" VARCHAR(255));";
private static final String CREATE_OTHER_TABLE = "CREATE TABLE "+RESULT_TABLE+
" ("+UID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+RESULT+" VARCHAR(255));";
private static final String DROP_TABLE ="DROP TABLE IF EXISTS "+RESULT_TABLE;
private Context context;
public DBHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_Version);
this.context=context;
}
/*public void deleteTable(SQLiteDatabase db) {
db = getWritableDatabase();
db.execSQL("DROP TABLE IF EXISTS CraftTools");
}*/
public void onCreate(SQLiteDatabase db) {
db.execSQL(DROP_TABLE);
db.execSQL(CREATE_OTHER_TABLE);
db.execSQL(CREATE_TABLE);
db.execSQL("INSERT INTO " + TABLE_NAME + "(Craft_Name, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
"VALUES ('Landscape Drawing', '1', '4','8', '0', '0')");
db.execSQL("INSERT INTO " + TABLE_NAME + "(Craft_Name, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
"VALUES ('Popsicle Sticks House', '2', '3','0', '0', '0')");
db.execSQL("INSERT INTO " + TABLE_NAME + "(Craft_Name, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
"VALUES ('Sunset Painting', '4', '7','10', '0', '0')");
/*try {
db.execSQL(CREATE_TABLE);
} catch (Exception e) {
Message.message(context,""+e);
}*/
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//db.execSQL(DROP_TABLE);
onCreate(db);
if (newVersion > oldVersion) {
db.execSQL("ALTER TABLE CraftTools ADD COLUMN FIRST_ATTRIBUTE INTEGER DEFAULT 0");
db.execSQL("ALTER TABLE CraftTools ADD COLUMN SECOND_ATTRIBUTE INTEGER DEFAULT 0");
db.execSQL("ALTER TABLE CraftTools ADD COLUMN THIRD_ATTRIBUTE INTEGER DEFAULT 0");
db.execSQL("ALTER TABLE CraftTools ADD COLUMN FOURTH_ATTRIBUTE INTEGER DEFAULT 0");
db.execSQL("ALTER TABLE CraftTools ADD COLUMN FIFTH_ATTRIBUTE INTEGER DEFAULT 0");
//onCreate(db);
/*try {
Message.message(context,"OnUpgrade");
db.execSQL(DROP_TABLE);
onCreate(db);
}catch (Exception e) {
Message.message(context,""+e);*/
}
}
}
My logcat for the error is below this line. I am not sure why my result is empty or why nothing is being put in the buffer.
11-27 22:43:28.898 4502-4502/com.example.android.androidcraftsappprototype E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.android.androidcraftsappprototype, PID: 4502
android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
at android.database.AbstractCursor.checkPosition(AbstractCursor.java:468)
at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:50)
at com.example.android.androidcraftsappprototype.DBAdapter.getData(DBAdapter.java:86)
at com.example.android.androidcraftsappprototype.SetupPage$2.onClick(SetupPage.java:118)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

i think your course return 0 item according to query..so you should write below condition
cursor.moveToFirst(); <--- instead of this
if(cursor.moveToFirst()){
// here all your code
}

Separating a quiz questions into different groups

I've searched a lot for this question but can't seem to actually find an answer. My quiz app works well, but I realized that 50 questions all at once were too many.
Right now, my app works by people clicking a button that says "Begin" and they enter the quiz. After the quiz, all of the questions that they got wrong are shown with the correct answer. However, what I'd like to do is group these into questions of 10. So, select "Question Set 1" Button, "Question Set 2" Button, etc. Then, I'd still like to show the correct answer to the questions contained in this question set.
I'm not actually sure how to separate the questions and have my logic still work. Below I've included by database helper class. I've exempted most of the questions to shorten it. Thank you so much!
public class DbHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "realEstateQuiz";
// tasks table name
private static final String TABLE_QUEST = "quest";
// tasks Table Columns names
private static final String KEY_ID = "questionId";
private static final String KEY_QUES = "question";
private static final String KEY_ANSWER = "answer"; // correct option
private static final String KEY_OPTA = "opta"; // option a
private static final String KEY_OPTB = "optb"; // option b
private static final String KEY_OPTC = "optc"; // option c
private static final String KEY_OPTD = "optd"; // option d
private SQLiteDatabase dbase;
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
dbase = db;
String sql = "CREATE TABLE IF NOT EXISTS " + TABLE_QUEST + " ( " + KEY_ID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_QUES + " TEXT, " + KEY_ANSWER + " TEXT, " + KEY_OPTA
+ " TEXT, " + KEY_OPTB + " TEXT, " + KEY_OPTC + " TEXT," + KEY_OPTD + " TEXT)";
db.execSQL(sql);
addQuestions(db);
// db.close();
}
private void addQuestions(SQLiteDatabase db) {
Question q1 = new Question(
"When a real estate professional exaggerates " + "about a parcel of property, they are likely:",
"Misrepresenting the property", "Guilty of fraud", "Puffing", "All of the above", "Puffing");
this.addQuestion(q1, db);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_QUEST);
// Create tables again
onCreate(db);
}
// Adding new question
public void addQuestion(Question quest, SQLiteDatabase db) {
ContentValues values = new ContentValues();
values.put(KEY_QUES, quest.getQuestion());
values.put(KEY_ANSWER, quest.getAnswer());
values.put(KEY_OPTA, quest.getOpta());
values.put(KEY_OPTB, quest.getOptb());
values.put(KEY_OPTC, quest.getOptc());
values.put(KEY_OPTD, quest.getOptd());
// Inserting Row
db.insert(TABLE_QUEST, null, values);
}
public List<Question> getAllQuestions() {
List<Question> quesList = new ArrayList<Question>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_QUEST;
dbase = this.getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Question quest = new Question();
quest.setQuestionId(cursor.getInt(0));
quest.setQuestion(cursor.getString(1));
quest.setAnswer(cursor.getString(2));
quest.setOpta(cursor.getString(3));
quest.setOptb(cursor.getString(4));
quest.setOptc(cursor.getString(5));
quest.setOptd(cursor.getString(6));
quesList.add(quest);
} while (cursor.moveToNext());
}
// return quest list
cursor.close();
dbase.close();
return quesList;
}
public int rowcount() {
int row = 0;
String selectQuery = "SELECT * FROM " + TABLE_QUEST;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
row = cursor.getCount();
cursor.close();
return row;
}
}

It seems to me that your Question objects and corresponding table should contain an additional field which indicates which Question Set they belong to. Your DbHelper class should then beable to query Questions by set. Or alternatively you could sort all Questions by their set in the java code, but I would prefer to leave that to the db.
However, If you wish to divide all the questions into sets of 10 you could try something like the following:
List<Set<Question>> questionSets = new ArrayList<Set<Question>>();
Set<Question> questionSet = new HashSet<Question>();
questionSets.add(questionSet);
int counter = 0;
for(Question question : dbHelper.getAllQuestions()){
if(++counter > 10){
counter = 0;
questionSet = new HashSet<Question>();
questionSets.add(questionSet);
}
questionSet.add(question);
}
This will collect ten questions into a Set and the add them to the list of Question Sets. You could then access each question set from that list.

where clause is not working in sqlite database in android

I added a column named id in the database "quest" by using the OnUpgrade() method.But when i run the app there is no data in the arrayList. I used Log for checking the cursor and ArrayList size,Both are zero. When i ran the app first Time it gaves an error of not having a column named id after that it gaves an error of :
java.lang.RuntimeException: Unable to start activity
ComponentInfo
{com.example.chaitanya.myquiz/
com.example.chaitanya.myquiz.QuestionActivity}:
android.database.sqlite.SQLiteException: no such column: id (code 1):
, while compiling: SELECT * FROM quest where id = '1'
I checked the query many time.When i used Select * from +TABLE_QUEST; there are 5 entries in the list and it works fine but not in this case.please help.
public class QuizHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 2;
// Database Name
private static final String DATABASE_NAME = "bcd";
// tasks table name
private static final String TABLE_QUEST = "quest";
// tasks Table Columns names
private static final String KEY_ID = "qid";
private static final String KEY_QUES = "question";
private static final String KEY_ANSWER = "answer"; // correct option
private static final String KEY_OPTA = "opta"; // option a
private static final String KEY_OPTB = "optb"; // option b
private static final String KEY_OPTC = "optc"; // option c
private static final String KEY_ID2 = "id";
private SQLiteDatabase dbase;
public QuizHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
dbase = db;
String sql = "CREATE TABLE IF NOT EXISTS " + TABLE_QUEST + " ( "
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_QUES
+ " TEXT, " + KEY_ANSWER + " TEXT, " + KEY_OPTA + " TEXT, "
+ KEY_OPTB + " TEXT, " + KEY_OPTC + " TEXT " + KEY_ID2 + "
INTEGER)";
db.execSQL(sql);
addQuestion();
// db.close();
}
private void addQuestion() {
Question q1 = new Question("Who is the president of india ?", "narender
modi", "hamid ansari", "pranab mukherji", "pranab mukherji",1);
this.addQuestion(q1);
Question q2 = new Question(" Name of the first university of India ?",
"Nalanda University", "Takshshila University", "BHU", "Nalanda
University",1);
this.addQuestion(q2);
Question q3 = new Question("Which college is awarded as Outstanding
Engineering Institute North Award�", "Thapar University", "G.N.D.E.C",
"S.L.I.E.T", "G.N.D.E.C",1);
this.addQuestion(q3);
Question q4 = new Question("Name of the first Aircraft Carrier Indian
Ship ?", "Samudragupt", "I.N.S. Vikrant", "I.N.S Virat", "I.N.S.
Vikrant",1);
this.addQuestion(q4);
Question q5 = new Question("In which town of Punjab the largest grain
market of Asia is Available?", "Bathinda", "Khanna", "Ludhiana",
"Khanna",1);
this.addQuestion(q5);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
if (newV > oldV) {
db.execSQL("ALTER TABLE " + TABLE_QUEST + " ADD COLUMN " +
KEY_ID2 + " INTEGER DEFAULT 0");
}
onCreate(db);
}
// Adding new question
public void addQuestion(Question quest) {
// SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_QUES, quest.getQUESTION());
values.put(KEY_ANSWER, quest.getANSWER());
values.put(KEY_OPTA, quest.getOPTA());
values.put(KEY_OPTB, quest.getOPTB());
values.put(KEY_OPTC, quest.getOPTC());
values.put(KEY_ID2,quest.getID());
// Inserting Row
dbase.insert(TABLE_QUEST, null, values);
}
public List<Question> getAllQuestions() {
List<Question> quesList = new ArrayList<Question>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_QUEST + " where " +
KEY_ID2 + " = '1' ";
// + KEY_ID2 + " = 1"
dbase = this.getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery, null);
Log.i("here",cursor.getCount()+"");
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Question quest = new Question();
quest.setID(cursor.getInt(0));
// Log.i("here",cursor.getInt(0)+"");
quest.setQUESTION(cursor.getString(1));
quest.setANSWER(cursor.getString(2));
quest.setOPTA(cursor.getString(3));
quest.setOPTB(cursor.getString(4));
quest.setOPTC(cursor.getString(5));
quesList.add(quest);
} while (cursor.moveToNext());
}
// return quest list
return quesList;
}

how to update data in existing sqlite database in android

This is the database which is initially of 21 question.i added 10 more questions but they are not updated in the database.how i can add them in this database.i am new to android please me with this problem.
public class QuizHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "mathsone";
// tasks table name
private static final String TABLE_QUEST = "quest";
// tasks Table Columns names
private static final String KEY_ID = "qid";
private static final String KEY_QUES = "question";
private static final String KEY_ANSWER = "answer"; // correct option
private static final String KEY_OPTA = "opta"; // option a
private static final String KEY_OPTB = "optb"; // option b
private static final String KEY_OPTC = "optc"; // option c
private SQLiteDatabase dbase;
public QuizHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
dbase = db;
String sql = "CREATE TABLE IF NOT EXISTS " + TABLE_QUEST + " ( "
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_QUES
+ " TEXT, " + KEY_ANSWER + " TEXT, " + KEY_OPTA + " TEXT, "
+ KEY_OPTB + " TEXT, " + KEY_OPTC + " TEXT)";
db.execSQL(sql);
addQuestion();
// db.close();
}
private void addQuestion() {
Question q1 = new Question("Who is the president of india ?", "narender modi", "hamid ansari", "pranab mukherji", "pranab mukherji");
this.addQuestion(q1);
Question q2 = new Question(" Name of the first university of India ?", "Nalanda University", "Takshshila University", "BHU", "Nalanda University");
this.addQuestion(q2);
Question q3 = new Question("Which college is awarded as Outstanding Engineering Institute North Award”?", "Thapar University", "G.N.D.E.C", "S.L.I.E.T", "G.N.D.E.C");
this.addQuestion(q3);
Question q4 = new Question("Name of the first Aircraft Carrier Indian Ship ?", "Samudragupt", "I.N.S. Vikrant", "I.N.S Virat", "I.N.S. Vikrant");
this.addQuestion(q4);
Question q5 = new Question("In which town of Punjab the largest grain market of Asia is Available?", "Bathinda", "Khanna", "Ludhiana", "Khanna");
this.addQuestion(q5);
Question q6 = new Question("Which is the highest dam in India?", "Bhakhra Dam", "Hirakud Dam", "Tehri Dam", "Tehri Dam");
this.addQuestion(q6);
Question q7 = new Question("Which Indian state is having longest coastline ?", "Rajasthan", "Gujrat", "Punjab", "Gujrat");
this.addQuestion(q7);
Question q8 = new Question("Name of the first Country to print books ?", "China", "India", "USA", "China");
this.addQuestion(q8);
Question q9 = new Question("Study of the Universe is known as?", "Sociology", "Cosmology", "Petology", "Cosmology");
this.addQuestion(q9);
Question q10 = new Question("Big Bang theory explains ?", "Origin of Universe.", "Origin of Sun", "Laws of physics.", "Origin of Universe.");
this.addQuestion(q10);
Question q11 = new Question("Which Planet is dwarf planet?", "Mercury", "Pluto", "Venus", "Pluto");
this.addQuestion(q11);
Question q12 = new Question(" In South Asia,the country with the largest percentage of aged population is ?", "India", "Sri Lanka", "Nepal", "Sri Lanka");
this.addQuestion(q12);
Question q13 = new Question("Which is the Largest lake of the world ?", "Caspian Sea ", "Dead Sea", "Arabian sea", "Caspian Sea ");
this.addQuestion(q13);
Question q14 = new Question("Which of following industry is famous of Jalandhar city?", "Cycle Parts Industry", "Electronics", "Sports Goods Manufacturing", "Sports Goods Manufacturing");
this.addQuestion(q14);
Question q15 = new Question("Capital of Punjab is:", "Ludhiana", "Amritsar", "Chandigarh", "Chandigarh");
this.addQuestion(q15);
Question q16 = new Question("How many Seats of lok sabha are filled by the candidate of Punjab ?", "12", "17", "13", "13");
this.addQuestion(q16);
Question q17 = new Question("In Malwa and Doaba regions ____ river separates?", " Beas", "Jehlam", "Satluj", "Satluj");
this.addQuestion(q17);
Question q18 = new Question("Which one of the following city of Punjab State was known as Virat Ki Nagri?", "Amritsar", "Dasuha", "Ludhiana", "Dasuha");
this.addQuestion(q18);
Question q19 = new Question("Sachin Tendulkar scored his 100th international century against which’ country ?", "Bangladesh", "Australia", "West Indies", "Bangladesh");
this.addQuestion(q19);
Question q20 = new Question("What is the minimum permissible age for employment in any factory or mine?", "16", "13", "14", "14");
this.addQuestion(q20);
Question q21 = new Question("Where is India's First nuclear centre ?", "Rampur", "Mirapur", "Tarapur", "Tarapur");
this.addQuestion(q21);
Question q22= new Question("Srgsbhs","a","b","cd","cd");
this.addQuestion(q22);
Question q23= new Question("Srgsbhs","a","b","d","d");
this.addQuestion(q23);
Question q24= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q24);
Question q25= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q25);
Question q26= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q26);
Question q27= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q27);
Question q28= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q28);
Question q29= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q29);
Question q30= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q30);
Question q31= new Question("Srgsbhs","a","b","f","f");
this.addQuestion(q31);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_QUEST);
// Create tables again
onCreate(db);
}
// Adding new question
public void addQuestion(Question quest) {
// SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_QUES, quest.getQUESTION());
values.put(KEY_ANSWER, quest.getANSWER());
values.put(KEY_OPTA, quest.getOPTA());
values.put(KEY_OPTB, quest.getOPTB());
values.put(KEY_OPTC, quest.getOPTC());
// Inserting Row
dbase.insert(TABLE_QUEST, null, values);
}
public List<Question> getAllQuestions() {
List<Question> quesList = new ArrayList<Question>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_QUEST;
dbase = this.getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Question quest = new Question();
quest.setID(cursor.getInt(0));
quest.setQUESTION(cursor.getString(1));
quest.setANSWER(cursor.getString(2));
quest.setOPTA(cursor.getString(3));
quest.setOPTB(cursor.getString(4));
quest.setOPTC(cursor.getString(5));
quesList.add(quest);
} while (cursor.moveToNext());
}
// return quest list
return quesList;
}
}

Invoke addQuestions() at a different place than onCreate() or increase DATABASE_VERSION number to force DB upgrade.

SQLite two tables, one works, the other does not

I have an SQLite database in an Android app. One database with two tables. simple read in some text and read it out, however, the first of two tables works perfectly and the second table does not and gives errors. I have looked at my code and it seems all correct. I dare anyone to find an error in my code or SQL statements below.
Especially interested in the SQL statements, because my SQL code is PERFECT as far as I know, for both tables, however in the LOGCAT says that a there is no table that I am reading into for table two.
Why would one of my tables work and the other not? Yet they are in the same database and written the same way.
DATABASE OPERATION ON FIRST TABLE; (WORKS PERFECTLY)
ourHelper = new DbHelper(ourContext);
ourDatabase = ourHelper.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(KEY_NAME, name);
cv.put(KEY_HITS, hits);
ourDatabase.insert(DATABASE_TABLE_1, null, cv);
public String getData() {
String[] columns = new String[] { KEY_ROWID, KEY_NAME, KEY_HITS };
Cursor c = ourDatabase.query(DATABASE_TABLE_1, columns, null, null, null,
null, null);
String result = "";
int iRow = c.getColumnIndex(KEY_ROWID);
int iName = c.getColumnIndex(KEY_NAME);
int iHits = c.getColumnIndex(KEY_HITS);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
result = result + c.getString(iRow) + " " + c.getString(iName)
+ " " + c.getString(iHits) + "\n";
}
return result;
}
ourHelper.close();
DATABASE OPERATION ON SECOND TABLE; (DOES NOT WORK, ERRORS)
ourHelper = new DbHelper(ourContext);
ourDatabase = ourHelper.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put( KEY_RESULT, result);
return ourDatabase.insert(DATABASE_TABLE_2, null, cv);
public String getData2() {
// TODO Auto-generated method stub
String[] columns = new String[] { KEY_ROWID, KEY_RESULT, KEY_TABLET, KEY_DATE };
Cursor c = ourDatabase.query(DATABASE_TABLE_2, columns, null, null, null,
null, null);
String result = "";
int iRow = c.getColumnIndex(KEY_ROWID);
int iResult = c.getColumnIndex(KEY_RESULT);
int iTablet = c.getColumnIndex(KEY_TABLET);
int iDate = c.getColumnIndex(KEY_DATE);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
result = result + c.getString(iRow) + " " + c.getString(iResult)
+ " " + c.getString(iTablet) + " " + c.getString(iDate) + "\n";
}
return result;
}
ourHelper.close();
LOGCAT OUTPUT;
01-31 19:33:01.670: E/AndroidRuntime(6420): FATAL EXCEPTION: main
01-31 19:33:01.670: E/AndroidRuntime(6420):
java.lang.RuntimeException: Unable to start activity ComponentInfo{DBView}:
android.database.sqlite.SQLiteException: no such column: date: , while compiling:
SELECT _id, game_result, tablet_winner, date FROM prizeTable
MORE CODE FOR DETAILS;
public class PlayGame {
public static final String KEY_ROWID="_id";
// for table 1 gameTable
public static final String KEY_NAME="persons_name";
public static final String KEY_HITS="persons_hits";
// for table 2 prizesTable
public static final String KEY_RESULT="game_result";
public static final String KEY_TABLET="tablet_winner";
public static final String KEY_DATE="date";
private static final String DATABASE_NAME="PlayGamesdb";
private static final String DATABASE_TABLE_1="gameTable";
private static final String DATABASE_TABLE_2="prizeTable";
private static final int DATABASE_VERSION = 1;
private static final String CREATE_TABLE_1 = "CREATE TABLE " + DATABASE_TABLE_1 + " (" + KEY_ROWID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_NAME + " TEXT NOT NULL, " + KEY_HITS + " TEXT NOT NULL);";
private static final String CREATE_TABLE_2 = "CREATE TABLE " + DATABASE_TABLE_2 + " (" + KEY_ROWID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_RESULT + " TEXT NOT NULL, " + KEY_TABLET
+ " TEXT NOT NULL, " + KEY_DATE + "TEXT NOT NULL);";
private DbHelper ourHelper;
private final Context ourContext;
private SQLiteDatabase ourDatabase;
private static class DbHelper extends SQLiteOpenHelper{
public DbHelper(Context context){
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_TABLE_1);
db.execSQL(CREATE_TABLE_2);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE_1 + "AND" + DATABASE_TABLE_2);
onCreate(db);
}
}
<<< EDIT >>>
Safime's suggestion fixed the crashing, that was adding a space between KEY_DATE and TEXT in the creation of the second table.
However still a problem, no more crashing, but the insert() method is still not working. Getting a -1 return shows that it is not inserting anything, and the the table 2 is still empty after inserting a new row to the table. Got to find out why it is failing to create any new rows in the table. Just like earlier, table one works fine but table two is still not working yet.

You are using Constraint NOT NULL and you are inserting only in one column. You must be getting SQLiteConstraintexception Exception. Try inserting in all columns.

You are missing an empty space after the column KEY_DATE and before TEXT on the creation of the second table.
(...) + KEY_DATE + " TEXT NOT NULL); (...)

Probably you have a problem at the create table statement of your second table. Try to open your db file with the sqlite3 command line tool, and see if this table exits. If not, the problem is in the CREATE statement.