Sqllite doesn' write a column
<p>I do this:</p>

<pre><code>DatabaseHelper dbHelper = new DatabaseHelper(context);
dbHelper.getWritableDatabase();
String sql = "insert into "+getTableName()+("+DatabaseHelper.PRODUCT_MARK+",
         "+DatabaseHelper.PRODUCT_NAME+") 
          VALUES ('"+input.getMark()+"','"+input.getName()+"')";
System.out.println(sql);
getDatabase().execSQL(sql); 

dbHelper.close();
</code></pre>

<p>The system print</p>

<pre><code>12-14 16:53:33.857: I/System.out(1350): insert into product (pMark,name) 
            VALUES ('aaaaa ','zz')
</code></pre>

<p>But when I read from db the property mark is not valorized...
Where is my mistake?</p>
