Question

I have a query that outputs address order data:

SELECT ordernumber
  , article_description
  , article_size_description
  , concat(NumberPerBox,' pieces') as contents
  , NumberOrdered
FROM customerorder
WHERE customerorder.id = 1;

I would like the above line to be outputted NumberOrders (e.g. 50,000) divided by NumberPerBox e.g. 2,000 = 25 times.

Is there a SQL query that can do this, I’m not against using temporary tables to join against if that’s what it takes.

I checked out the previous questions, however the nearest one:
is to be posible in mysql repeat the same result
Only gave answers that give a fixed number of rows, and I need it to be dynamic depending on the value of (NumberOrdered div NumberPerBox).

The result I want is:

Boxnr   Ordernr        as_description   contents   NumberOrdered
------+--------------+----------------+-----------+---------------
  1   | CORDO1245    | Carrying bags  | 2,000 pcs | 50,000
  2   | CORDO1245    | Carrying bags  | 2,000 pcs | 50,000
....
  25  | CORDO1245    | Carrying bags  | 2,000 pcs | 50,000

Answer 1

First, let me say that I am more familiar with SQL Server so my answer has a bit of a bias.
Second, I did not test my code sample and it should probably be used as a reference point to start from.

It would appear to me that this situation is a prime candidate for a numbers table. Simply put, it is a table (usually called “Numbers”) that is nothing more than a single PK column of integers from 1 to n. Once you’ve used a Numbers table and aware of how it’s used, you’ll start finding many uses for it – such as querying for time intervals, string splitting, etc.

That said, here is my untested response to your question:

SELECT
   IV.number as Boxnr
  ,ordernumber  
  ,article_description
  ,article_size_description
  ,concat(NumberPerBox,' pieces') as contents
  ,NumberOrdered
FROM
  customerorder
  INNER JOIN (
    SELECT
       Numbers.number
      ,customerorder.ordernumber
      ,customerorder.NumberPerBox
    FROM
      Numbers
      INNER JOIN customerorder
        ON Numbers.number BETWEEN 1 AND customerorder.NumberOrdered / customerorder.NumberPerBox
    WHERE
      customerorder.id = 1
    ) AS IV
    ON customerorder.ordernumber = IV.ordernumber

As I said, most of my experience is in SQL Server. I reference http://www.sqlservercentral.com/articles/Advanced+Querying/2547/ (registration required). However, there appears to be quite a few resources available when I search for “SQL numbers table”.