Android sqlite中判断某个表是否存在方法

http://mycoding.iteye.com/blog/939683

/**
     * 判断某张表是否存在
     * @param tabName 表名
     * @return
     */
    public boolean tabbleIsExist(String tableName){
            boolean result = false;
            if(tableName == null){
                    return false;
            }
            SQLiteDatabase db = null;
            Cursor cursor = null;
            try {
                    db = this.getReadableDatabase();
                    String sql = "select count(*) as c from Sqlite_master  where type ='table' and name ='"+tableName.trim()+"' ";
                    cursor = db.rawQuery(sql, null);
                    if(cursor.moveToNext()){
                            int count = cursor.getInt(0);
                            if(count>0){
                                    result = true;
                            }
                    }
                    
            } catch (Exception e) {
                    // TODO: handle exception
            }                
            return result;
    }