I’m working on my first SQLite database app and after two days of struggling,

Question

0

Asked: June 10, 20262026-06-10T08:08:15+00:00 2026-06-10T08:08:15+00:00

I’m working on my first SQLite database app and after two days of struggling,

0

I’m working on my first SQLite database app and after two days of struggling, I’m finally asking the pros for some help.

I’m getting a force close when attempting to display the data in a text view (getNurseData method). Also, I don’t think the createEntry method is working either, because after that method is called, I try to clear the EditText controls, with a setText(""); call but the controls are not clearing.

Here’s the DbCommunicator class:

package com.deadEddie.staffingmanagement;

import android.app.Dialog;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import android.widget.TextView;

public class DbCommunicator {
// create fields for nurses table
public static final String KEY_NURSE_ROWID = "_id";
public static final String KEY_LNAME = "_lName";
public static final String KEY_FNAME = "_fName";
public static final String KEY_EMAIL = "_eMail";
public static final String KEY_PHONE_PRIMARY = "_priPhone";
public static final String KEY_PHONE_SECONDARY = "_secPhone";
public static final String KEY_FTE = "_fte";
public static final String KEY_DUTY_STATUS = "Off Duty"; 

// create fields for rooms table
public static final String KEY_ROOM_ROWID = "_id";
public static final String KEY_TYPE_PATIENT = "_id";
public static final String KEY_OCCUPIED = "NO";
public static final String KEY_ROOM_NUMBER = "_id";

// database values
public static final String DATABASE_NAME = "Staffing_Assignments";
public static final String NURSE_TABLE = "Nurse_Table";
public static final String ROOM_TABLE = "Room_Table";
public static final int DATABASE_VERSION = 1;

private DbHelper databaseHelper;
private final Context dbContext;
private SQLiteDatabase sqldb;

private static class DbHelper extends SQLiteOpenHelper 
{

    public DbHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        // TODO Auto-generated constructor stub
    }

    // create database if it does not already exist
    @Override
    public void onCreate(SQLiteDatabase db) {
        // TODO Auto-generated method stub
        db.execSQL("CREATE TABLE " + NURSE_TABLE + " (" + KEY_NURSE_ROWID
                + "INTEGER PRIMARY KEY AUTOINCREMENT " + KEY_LNAME
                + "TEXT NOT NULL" + KEY_FNAME + "TEXT NOT NULL" +    KEY_EMAIL
                + "TEXT NOT NULL" + KEY_PHONE_PRIMARY + "TEXT NOT NULL"
                + KEY_PHONE_SECONDARY + "TEXT" + KEY_DUTY_STATUS
                + "TEXT NOT NULL);");

        db.execSQL("CREATE TABLE " + ROOM_TABLE + " (" + KEY_ROOM_ROWID
                + " INTEGER PRIMARY KEY AUTOINCREMENT " + KEY_TYPE_PATIENT
                + " TEXT" + KEY_OCCUPIED + " TEXT NOT NULL" + KEY_ROOM_NUMBER
                + " TEXT NOT NULL);");
    } // onCreate

    // upgrade existing database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) 
    {
        // TODO Auto-generated method stub
        db.execSQL("DROP TABLE IF EXISTS " + NURSE_TABLE);
        db.execSQL("DROP TABLE IF EXISTS " + ROOM_TABLE);
        onCreate(db);
    }

} // DbHelper class

public DbCommunicator(Context c) {
    dbContext = c;
}

public void close() {
    databaseHelper.close();
}

public DbCommunicator open() throws SQLException {
    databaseHelper = new DbHelper(dbContext);
    sqldb = databaseHelper.getWritableDatabase();
    return this;
}

public long createEntry(String nurseLname, String nurseFname,
        String nurseEmail, String priPhone, String secPhone, String nurseFTE) {
    // TODO Auto-generated method stub
    ContentValues cvCreate = new ContentValues();
    cvCreate.put(KEY_LNAME, nurseLname);
    cvCreate.put(KEY_FNAME, nurseFname);
    cvCreate.put(KEY_EMAIL, nurseEmail);
    cvCreate.put(KEY_PHONE_PRIMARY, priPhone);
    cvCreate.put(KEY_PHONE_SECONDARY, secPhone);
    cvCreate.put(KEY_FTE, nurseFTE);

    return sqldb.insert(NURSE_TABLE, null, cvCreate);

}

public String getNurseData() {
    // TODO Auto-generated method stub
    String[] columns = new String[] { KEY_NURSE_ROWID, KEY_LNAME, KEY_FNAME, 
            KEY_EMAIL, KEY_PHONE_PRIMARY, KEY_PHONE_SECONDARY };
    Cursor c = sqldb.query(NURSE_TABLE, columns, null, null, null,
            null, null);
    String result = "";

    int iRow = c.getColumnIndex(KEY_NURSE_ROWID);
    int iLname = c.getColumnIndex(KEY_LNAME);
    int iFname = c.getColumnIndex(KEY_FNAME);
    int iEmail = c.getColumnIndex(KEY_EMAIL);
    int iPriPhone = c.getColumnIndex(KEY_PHONE_PRIMARY);
    int iSecPhone = c.getColumnIndex(KEY_PHONE_SECONDARY);
    int iDutyStatus = c.getColumnIndex(KEY_DUTY_STATUS);


    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
        result = result + " " + c.getString(iRow) + " "
                + c.getString(iLname) + " "
                + c.getString(iFname) + " "
                + c.getString(iPriPhone) + " " + c.getString(iSecPhone) + " "
                + c.getString(iEmail) + " " + c.getString(iDutyStatus) + "\n";
    }
    c.deactivate();
    c.close();
    return result;
}

}// DbCommunicator class

Here’s the NursingAssignments class that attempts to fill a TextView from the getNurseData method:

package com.deadEddie.staffingmanagement;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class NursingAssignments extends Activity implements OnClickListener
{
Button addNurse;
Button removeNurse;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.nurse_assignments);
    displayNursingData();

    // set variable values and OnClickListeners
    addNurse = (Button) findViewById(R.id.btnAddToRoster);
    removeNurse = (Button) findViewById(R.id.btnRemoveFromRoster);
    addNurse.setOnClickListener(this);
    removeNurse.setOnClickListener(this);
}

@Override
public void onClick(View arg0) {
    // TODO Auto-generated method stub
    switch (arg0.getId())
    {
    case R.id.btnAddToRoster:
        Intent add = new Intent("com.deadEddie.staffingmanagement.ADDNURSETOROSTER");
        startActivity(add);
        break;

    case R.id.btnRemoveFromRoster:  
        break;
    }
}

public void displayNursingData()
{
    TextView nurseRoster = (TextView) findViewById(R.id.tvSQLInfo);
    DbCommunicator info = new DbCommunicator(this);
    info.open();
    String data = info.getNurseData();
    info.close();
    nurseRoster.setText(data.toString());
}

}

And here’s the AddNurseToRoster class, which attempts to add an entry and clear the EditText controls:

package com.deadEddie.staffingmanagement;

import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class AddNurseToRoster extends Activity implements OnClickListener {
Button add;
Button cancel;
EditText lastName;
EditText firstName;
EditText eMail;
EditText primaryPhone;
EditText secondaryPhone;
EditText fte;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.add_nurse_to_roster);
    setControlValues();
}

private void setControlValues() {
    add = (Button) findViewById(R.id.btnAdd);
    cancel = (Button) findViewById(R.id.btnCancel);
    lastName = (EditText) findViewById(R.id.etFname);
    eMail = (EditText) findViewById(R.id.etEmail);
    primaryPhone = (EditText) findViewById(R.id.etPrimaryPhone);
    secondaryPhone = (EditText) findViewById(R.id.etSecondaryPhone);
    fte = (EditText) findViewById(R.id.etFTE);

} // setVariableValues

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    switch (v.getId()) {
    case R.id.btnAdd:
        try {
            String nurseLname = lastName.getText().toString();
            String nurseFname = firstName.getText().toString();
            String nurseEmail = eMail.getText().toString();
            String priPhone = primaryPhone.getText().toString();
            String secPhone = secondaryPhone.getText().toString();
            String nurseFTE = fte.getText().toString();
            DbCommunicator database = new DbCommunicator(this);
            database.open();
            database.createEntry(nurseLname, nurseFname, nurseEmail,
                    priPhone, secPhone, nurseFTE);
            database.close();
            lastName.setText("");
            firstName.setText("");
            eMail.setText("");
            primaryPhone.setText("");
            secondaryPhone.setText("");
            fte.setText("");

        } catch (Exception e) {
            String error = e.toString();
            Dialog d = new Dialog(this);
            d.setTitle("An Error Has Occurred");
            TextView tv = new TextView(this);
            tv.setText(error);
            d.setContentView(tv);
            d.show();
        }
        break;

    case R.id.btnCancel:
        break;
    }
} // onClickView
}

I’m getting this Logcat error, but I’m not sure how to fix it.

08-23 14:31:25.156: E/AndroidRuntime(577): ERROR: thread attach failed
08-23 14:31:32.545: E/Database(583): Failure 1 (AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY) on 0x136ea8 when preparing 'CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL);'.
08-23 14:31:32.555: E/AndroidRuntime(583): Uncaught handler: thread main exiting due to uncaught exception
08-23 14:31:32.565: E/AndroidRuntime(583): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.deadEddie.staffingmanagement/com.deadEddie.staffingmanagement.NursingAssignments}: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY: CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL);
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread.access$2200(ActivityThread.java:119)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.os.Handler.dispatchMessage(Handler.java:99)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.os.Looper.loop(Looper.java:123)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread.main(ActivityThread.java:4363)
08-23 14:31:32.565: E/AndroidRuntime(583):  at java.lang.reflect.Method.invokeNative(Native Method)
08-23 14:31:32.565: E/AndroidRuntime(583):  at java.lang.reflect.Method.invoke(Method.java:521)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
08-23 14:31:32.565: E/AndroidRuntime(583):  at dalvik.system.NativeStart.main(Native Method)
08-23 14:31:32.565: E/AndroidRuntime(583): Caused by: android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY: CREATE TABLE Nurse_Table (_idINTEGER PRIMARY KEY AUTOINCREMENT, _lNameTEXT NOT NULL,_fNameTEXT NOT NULL_eMailTEXT NOT NULL,_priPhoneTEXT NOT NULL,_secPhoneTEXT,Off DutyTEXT NOT NULL);
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.database.sqlite.SQLiteDatabase.native_execSQL(Native Method)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1610)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.deadEddie.staffingmanagement.DbCommunicator$DbHelper.onCreate(DbCommunicator.java:52)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:106)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.deadEddie.staffingmanagement.DbCommunicator.open(DbCommunicator.java:87)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.deadEddie.staffingmanagement.NursingAssignments.displayNursingData(NursingAssignments.java:52)
08-23 14:31:32.565: E/AndroidRuntime(583):  at com.deadEddie.staffingmanagement.NursingAssignments.onCreate(NursingAssignments.java:21)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-23 14:31:32.565: E/AndroidRuntime(583):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
08-23 14:31:32.565: E/AndroidRuntime(583):  ... 11 more
08-23 14:31:32.575: E/dalvikvm(583): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

DDMS output:

[2012-08-23 09:04:17 - StaffingManagement] New emulator found: emulator-5556
[2012-08-23 09:04:17 - StaffingManagement] Waiting for HOME ('android.process.acore') to be launched...
[2012-08-23 09:05:14 - StaffingManagement] HOME is up on device 'emulator-5556'
[2012-08-23 09:05:14 - StaffingManagement] Uploading StaffingManagement.apk onto device 'emulator-5556'
[2012-08-23 09:05:14 - StaffingManagement] Installing StaffingManagement.apk...
[2012-08-23 09:05:24 - StaffingManagement] Success!
[2012-08-23 09:05:24 - StaffingManagement] Starting activity com.deadEddie.staffingmanagement.MainActivity on device emulator-5556
[2012-08-23 09:05:26 - StaffingManagement] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.deadEddie.staffingmanagement/.MainActivity }

Report

Leave an answer
Cancel reply

You must login to add an answer.

Need An Account,

1 Answer

Editorial Team · Answer 1 · 2026-06-10T08:08:17+00:00

First of all… Your columns inside the create statement should be devided with “,”

db.execSQL("CREATE TABLE " + NURSE_TABLE + " (" + KEY_NURSE_ROWID + "INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_LNAME + "TEXT NOT NULL," + KEY_FNAME + "TEXT NOT NULL," + KEY_EMAIL + "TEXT NOT NULL," + KEY_PHONE_PRIMARY + "TEXT NOT NULL,"                 + KEY_PHONE_SECONDARY + "TEXT," + KEY_DUTY_STATUS                 + "TEXT NOT NULL);");

db.execSQL("CREATE TABLE " + ROOM_TABLE + " (" + KEY_ROOM_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_TYPE_PATIENT+ " TEXT," + KEY_OCCUPIED + " TEXT NOT NULL," + KEY_ROOM_NUMBER + " TEXT NOT NULL);");

I don’t think that this create statement will work without it…

Sign Up

Sign In

Forgot Password

The Archive Base Latest Questions

I’m working on my first SQLite database app and after two days of struggling,

Leave an answerCancel reply

1 Answer

Leave an answer
Cancel reply