Cannot retrieve database record using where on date column of Sqlite in Android

I am absolute beginner to Android. Now I start developing a tutorial project and working with Sqlite database. Now I am retrieving records using where on date column in database. But it is retrieving nothing. Please what is wrong with my code ? How can I correct it please ?

This is the create statement in database helper class

 private static final String CREATE_TABLE = "CREATE TABLE "+TABLE_NAME+" ("+COLUMN_ID+" INTEGER PRIMARY KEY AUTOINCREMENT,"+COLUMN_DESCRIPTION+" TEXT,"+
    COLUMN_DATE+" DATE,"+COLUMN_DONE+" BOOLEAN)";

This is how I am retrieving record using where clause on date column

String date = "04-22-2014";
        ArrayList<Task> tasks = new ArrayList<Task>();
        db = getReadableDatabase();
        String query = "SELECT * FROM "+TABLE_NAME + " where "+ COLUMN_DATE + " = "+ date;
        Cursor cursor = db.rawQuery(query,null);
        if(cursor.moveToFirst())
        {
            do{
                Task task = new Task();
                task.setId(cursor.getInt(0));
                task.setDescription(cursor.getString(1));
                task.setDate(cursor.getString(2));
                task.setDone(Boolean.valueOf(cursor.getString(3)));
                tasks.add(task);
            }
            while(cursor.moveToFirst());
        }

        return tasks;

But it is not returning any record. Please what is wrong with code. Help me.