Android : SQLite Cursor Out Of Bounds Exception On SELECT Count FROM Table

Jun 22, 2010

The following function is giving me an out of bounds exception...

public void count(){
SQLiteDatabase db = table.getWritableDatabase();
String count = "SELECT count(*) FROM table";
Cursor mcursor = db.rawQuery(count, null);
int icount = mcursor.getInt(0);
System.out.println("NUMBER IN DB: " + icount);}

It's meant to return the number of rows in the database. Anybody know whats wrong? am I perhaps doing this task the wrong way?

Android : SQLite Cursor out of bounds exception on SELECT count FROM table


Android : Working With SQLite Database / Getting Cursor Out Of Bounds Exception

Jun 30, 2009

I am having some trouble working with the SQLite database. I am able to create the database, add to it, and delete from it with no problem by following the Notepad examples, but I am trying to avoid duplicates and therefore want to check to see if an entry exists already.

Below is the code I have for testing to see if a game exists. I get the correct Log message of "No Games" when there are no games, as well as the correct value for column from getColumnIndex which is proven to me by the log printout telling me that column = 1.

The error message that I receive if I don't catch the exception says "Caused by android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 1

Where is Index -1 being requested if my call to getColumnIndex is returning 1? Code...

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Android :: Sqlite Exception No Such Table?

Nov 13, 2010

I have decided that I hate SQL and for that purpose I am trying to make a helper class that I can reuse over and over and never have to mess with it again but it isnt working!

Here is what i have right now:

CODE:.........

I have included several System.out.println() statements to help me debug the code and find problems so please ignore them. PrintDB is another test that I wrote that I am using to make sure everything is working. Now this is what I have written to make sure everything is working....

CODE:.....................

Running this code everything goes great and all the System.out.println() statements have the right information in them until it gets to the databaseView.setText(db.printTable(tableName));
part and it throws an exception

CODE:................

This has me so confused because that same line of code is used in the getColNames() method that was called several times before this and ran with no problem. Also if the table didn't exist wouldn't it have thrown an exception when I called insertRow()? I called that method 5 times in a row with not a single exception thrown! What is happening here?

Implement onCreate() in your DBOpenHelper. Put there content of the createTable() method.

Why would it be necessary to create the table in the onCreate() method? If I were to do this would I be able to use my existing method to do so and just call it from this method?

And the second why you don't use content providers and uri >concept which is already SQLless?

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Aug 5, 2010

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May 6, 2009

I am seeing the exception in 'adb logcat'.But I don't know if it is caused by my application or android platform.Can you please give me any idea how to troubleshoot this exception?

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Android :: Sqlite Exception:java.lang.Illegal Argument Exception Column Id Does Not Exist

Jul 14, 2010

I created a sql lite database with the following columns:
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static final String colID="EmployeeID";
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
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colName+" TEXT, "+colAge+" Integer);");
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GridView grid=(GridView)findViewById(R.id.grid);
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Android :: No Such Table Exception?

Oct 30, 2010

I have next stuff:

CODE:..............

As i see in debug mode db.execSql proceeds w/o any exceptions, but then in this code:

CODE:.........

Is triggered by exception with message like 'There is no table with name "Preferences"'

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Sep 16, 2010

I am using a ContentProvider for caching results from a web-service query. It is an HTTP request and the response content is XML. Most of the data is cached, so I simply query the DB, if not found, request from webservice, insert in DB and requery the DB. Thus the response is always a Cursor from SQLiteDatabaseHelper.
I have one result set that is not stored in the DB and since it is 100% transient, but I would like to provide the appearance of it coming from the DB's Cursor. Is there an easy way to do this? For example, if I could project it onto the cursor with a cursor.setValue("string", objectValue) or some other existing implementation.
If not, I will either bypass the DB for this content result, or stuff it into a trivial table that is constantly reused.

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Nov 11, 2010

I've written an APP the uses has a small SQL lite DB and using a cursor adapter I can retrieve the records and populate a list view with them. from there I can get the Id of a selected item and delete it from the DB which works great. the issue I have is that as the DB grows deleting one row at a time would be slow and frustrating so I wanted to know if there was any way to allow multiple selections possibly with check boxes or by even changing the text color of the items selected so that I can retreiving their relative ID's.

I have read some posts that talk about custom cursor adapters but I am not sure how to adapt them to my code.

I have posted my code below.

CODE:.........................

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Nov 23, 2010

This is my code used to create table code...

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Apr 6, 2010

In my game I am handling the loss of a character (represented programmatically with their own table) - however there are 4 such tables. I would like to know if there is a simple way to simply tell SQLite to make character 2's entire table equal character 3's? Just trying to not leave a gap in the lineup.

I was considering pulling all the data, sorting it out, putting it into the table and then deleting - I just wanted to know if there was a nifty shortcut to tell SQLite that I wanted to duplicate an entire table at another preexisting table?
http://defiledroid.wordpress.com/

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Apr 20, 2010

So I have an app on the market, and with an update I want to add some columns to the database. No problems so far. But I want to detect if the database in use is missing these columns, and add them if this is the case. I need this to be done dynamically and not just after the update to the new version, because the application is supposed to still be able to import older databases. Normally I would be able to use the PRAGMA query, but Im not sure how to do this with Android. I cant use execSQL since it is a query, and I cant figure out how to use PRAGMA with the query()-function.

Ofcourse I could just catch exceptions and then add the column, or always add the columns to each table before I start to work with it, but that is not a neat solution.

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Oct 11, 2010

How do i efficiently copy a row data from one table to another table, where both of them are the same structure. i could go the much harder way of retrieving initial values from the row in the first table and then inserting to the second table. But i feel there is a more efficient way this can be done.

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Oct 20, 2010

In my activity, I have an AutoCompleteTextView that gets its contents from my custom adapter. I created my adapter by following this example.The adapter works so far, but I am getting so many errors on leaks and cursors that are not finalized.My question is: how do I close the db in runQueryOnBackgroundThread?

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Mar 18, 2010

I am creating an application which tracks the users location using GPS, stores the longitude and latitude in a database using a content provider then output the first long and lat to a mapview. I am able to create the cursor using this line of code...

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Aug 8, 2010

I have a database with tables called box, item, and box_contents and I want to get any item that is contained in the box_content table (all items, but discard the ones that arent in the box_contents table). What would be the correct sqllite syntax for this?

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Nov 24, 2010

My application contains SQLite .My application some time getting the following error

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I am closing the db in Destroy() using DataClass.dh.db.close(); Why this Error occured.Give me the solutions for this.

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Nov 22, 2010

I am struggling from long time to get this done i know some of the solutions in sql but couldn't find any of them from sqlite.

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Jun 24, 2010

I've got a query, (I'm using rawQuery())

SELECT * FROM <table>

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Aug 25, 2009

How do you populate a spinner from a cursor accessing an SQLite database?

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Nov 14, 2011

i'm trying to access (read & write) from non-default (example 2nd table) table of a sqlite database which i created using sqlite database browser. but somehow, i cant seems to find the way to access it.

Code:
public class DatabaseHelper extends SQLiteOpenHelper {
private static String DB_PATH = "/data/data/com.sg/databases/";
private static String DB_NAME = "TestDatabase";
private SQLiteDatabase myDatabase;
[code]...

select data method works, but i can only select from table 1 and not table 2

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May 11, 2012

I'm trying to select the items that have a expiration date >= that an selected date.I'm using the format yyyy-mm-dd, and this is my sql statement:

String sql = "SELECT _id, item, value, finalDate FROM "+DATABASE_TABLE+" WHERE date(finalDate) >= date("+selectedDate+")";

This query always result a "full select" in my database, as if there were no conditions.Some useful information:

selectDate is a String which have a date in yyyy-mm-dd format
I'm executing the query like this:
return db.rawQuery(sql,null);

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Jul 29, 2010

Im trying to get an object form my SQLite database in my Android application. I know that the contact is in the database because when I add it and try finding by ID, it returns the object. When I try finding by first and last name, though, it throws an exception and Im left with a null reference.

Here is the query:

CODE:..........

Ive also tried to find just by first name and just by last name. Same result as above.

The exception is an SQLite exception

no such column: aurelius: , while compiling: SELECT _id, last_name, first_name,
email_address, organization_name, label, label_position FROM contacts WHERE
first_name=marcus AND last_name=aurelius

And also happens when trying to select just first or last name

no such column: marcus: , while compiling: SELECT _id, last_name, first_name,
email_address, organization_name, label, label_position FROM contacts WHERE
first_name=marcus

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May 22, 2010

In my project, I would like to create a database with single table. I would also like to insert data on this table from word or excel document. is it possible? if so please how can I do it? some code snippets would be of great help. I have four different activities which I would like them to interact with this single table. the first is the main activity and its purpose is just to launch the other three activities according to user choice. so it has no interaction with the DB. but the other three activities will read from the table whenever called. Can you please tell me how to call the dbhelper on these activities? I am unable to do this and I am currently creating one db per each activity which is not the optimal way.

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Mar 21, 2012

I've a problem with a query in sqlite3.

The query is very simple:

SELECT MAX (INIT_DATE) INIT_DATE FROM TABLE;

When my application execute this query, and the table is empty, a record is returned. I can't understand why a record is being returned if the table is empty. It should return cero results.

I've tried to execute the query in two different ways:

cursor = db.query(true, "TABLE", new String[] {"MAX(INIT_DATE) AS INIT_DATE"}, null, null, null, null, null, null);

cursor = db.rawQuery("SELECT MAX(INIT_DATE) AS INIT_DATE FROM TABLE", null);

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Nov 15, 2010

I am using sqlite database in andriod. i m not creating any database i m using created database and it has successfully opened but when i am using:

Cursor cursor= db.query(tablename, null, null, null, null, null, null);

Then it gives this table does not exists plz help me.i got frustated with this problem. i also googled this problem but didnt find exact solution.

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Aug 22, 2010

I am developing an Android application where I get the exception while writing to the database: An exception occurred: android.database.sqlite.SQLiteException

But it doest say anything else. In general I find it very difficult to debug the exceptions.
I am using Eclipse to develop the application. Please help me in solving this issue..

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Sep 29, 2010

I want to run this query in Android Application :

code:.......

My DB schema

code:..........

Here is the function -

code:...........

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