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POSQlite Query Problems, causing Force Close
 

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  1. POSQlite Query Problems, causing Force Close
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    <p>I am writing my first application, and I am also trying to incorporate a database, and I am really struggling with it. What I am trying to do is have multiple spinners, and those spinners get their data from a database. Each spinner will do a different query.</p> <p>So far this is what I have: DBUtility</p> <pre><code>import android.content.Context; </code></pre> <p>import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.database.sqlite.SQLiteDatabase.CursorFactory; import android.widget.SimpleCursorAdapter;</p> <p>public class DbUtility {</p> <pre><code>static final String DB_NAME="food"; static final String BEEF_TABLE="beef"; static final String CHICKEN_TABLE="chicken"; SQLiteDatabase db=null; Context context; public static class DatabaseHelper extends SQLiteOpenHelper { public DatabaseHelper(Context context, String name, CursorFactory factory, int version) { super(context, name, factory, version); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("CREATE TABLE IF NOT EXISTS "+BEEF_TABLE+" (_id INT PRIMARY KEY, cookTime INT PRIMARY KEY ,name VARCHAR);"); db.execSQL("INSERT INTO "+BEEF_TABLE+" values(5000,'Skirt Steak');"); db.execSQL("INSERT INTO "+BEEF_TABLE+" values(10000,'Flank Steak');"); db.execSQL("INSERT INTO "+BEEF_TABLE+" values(15000,'Filet Mignon');"); db.execSQL("CREATE TABLE IF NOT EXISTS "+CHICKEN_TABLE+" (_id INT PRIMARY KEY, cookTime INT PRIMARY KEY ,name VARCHAR);"); db.execSQL("INSERT INTO "+CHICKEN_TABLE+" values(5000,'Breast');"); db.execSQL("INSERT INTO "+CHICKEN_TABLE+" values(10000,'Wings');"); db.execSQL("INSERT INTO "+CHICKEN_TABLE+" values(15000,'Burger');"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } } public DbUtility(Context context) { this.context=context; } public SimpleCursorAdapter getBeefAdapter() { DatabaseHelper dbhelper=new DatabaseHelper(this.context, DB_NAME, null, 1); db=dbhelper.getWritableDatabase(); Cursor beefCursor=db.rawQuery("SELECT * FROM "+BEEF_TABLE, null); while(!beefCursor.isLast()) beefCursor.moveToNext(); //I don't understand why but it's necessary (alternative call c.getCount() ) String[] from=new String[1]; from[0]="name"; int[] to=new int[1]; to[0]=android.R.id.text1; SimpleCursorAdapter beefAdapter=new SimpleCursorAdapter(this.context, android.R.layout.simple_spinner_item, beefCursor, from, to); beefAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); db.close(); return beefAdapter; } public SimpleCursorAdapter getChickenAdapter() { DatabaseHelper dbhelper=new DatabaseHelper(this.context, DB_NAME, null, 1); db=dbhelper.getWritableDatabase(); Cursor chickenCursor=db.rawQuery("SELECT * FROM "+CHICKEN_TABLE, null);//If I change this to BEEF_TABLE it doesn't force close... while(!chickenCursor.isLast()) chickenCursor.moveToNext(); //I don't understand why but it's necessary (alternative call c.getCount() ) String[] from=new String[1]; from[0]="name"; int[] to=new int[1]; to[0]=android.R.id.text1; SimpleCursorAdapter chickenAdapter=new SimpleCursorAdapter(this.context, android.R.layout.simple_spinner_item, chickenCursor, from, to); chickenAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); db.close(); return chickenAdapter; } </code></pre> <p>}</p> <p>and I also have my chickenActivity, this is where my spinners are:</p> <p>package com.tsilo.grillbuddy;</p> <p>import android.app.Activity; import android.os.Bundle; import android.widget.SimpleCursorAdapter; import android.widget.Spinner;</p> <p>public class ChickenActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.spinner);</p> <pre><code> DbUtility db=new DbUtility(this); SimpleCursorAdapter beefAdapter=db.getBeefAdapter(); Spinner beefSpinner=(Spinner)this.findViewById(R.id.spinner); beefSpinner.setAdapter(beefAdapter); SimpleCursorAdapter chickenAdapter=db.getChickenAdapter(); Spinner chickenSpinner=(Spinner)this.findViewById(R.id.spinner2); chickenSpinner.setAdapter(chickenAdapter); } </code></pre> <p>}</p> <p>This is what I have noticed:<br> If I change my getChickenAdapter() so it queries BEEF_TABLE, it works, it is only when I switch it to CHICKEN_TABLE, that it force closes.</p> <hr> <p>My DDMS Error: </p> <p>12-06 16:03:12.473: INFO/Database(11856): sqlite returned: error code = 1, msg = no such table: chicken 12-06 16:03:12.473: DEBUG/AndroidRuntime(11856): Shutting down VM 12-06 16:03:12.473: WARN/dalvikvm(11856): threadid=1: thread exiting with uncaught exception (group=0x4001d7f0) 12-06 16:03:12.483: ERROR/AndroidRuntime(11856): FATAL EXCEPTION: main 12-06 16:03:12.483: ERROR/AndroidRuntime(11856): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tsilo.grillbuddy/com.tsilo.grillbuddy.ChickenActivity}: android.database.sqlite.SQLiteException: no such table: chicken: , while compiling: SELECT * FROM chicken</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USSickNick
    1. USSickNick
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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. COWhat is the error you getting in DDMS ?
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      1. POSQlite Query Problems, causing Force Close
      1. USkthorat
    2. COWhy do you have two `PRIMARY KEY` for the BEEF_TABLE?
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      1. POSQlite Query Problems, causing Force Close
      1. USPentium10
 

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