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Editorial Team
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Asked: 2026-05-16T16:46:36+00:00

Ok I have a database that looks as follows: Orders, Services, OrderUnits, Notes Orders:

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Ok I have a database that looks as follows:
Orders, Services, OrderUnits, Notes

Orders: id
Services: id, orderid
Units: id, Orderid, unitnumber
Notes: id, relatedid, text, date
  • Orders have 1 to many order units
  • Orders have 1 to many services
  • Services have 1 to many notes

I am trying to relate only the notes that relate to the unit and show those records, the problem is there is no database relation between notes and unit, only service and note.

I am trying to get the following:

select u.unitnumber
      ,n.date
      ,o.id
      ,s.id
      ,n.text
 FROM tblorders o
 INNER JOIN tblServices s on o.id = s.orderid
 INNER JOIN tblUnits u on o.id = u.orderid
 INNER JOIN tblNotes n on s.id = n.RelatedId
 WHERE n.Text LIKE '<p>The status for the Unit # % has changed from % to OUTTOVENDOR</p>'

The problem here is that this gives me the 2 units 4 times if there is 2 units in the same service because the service is related to the note and not the unit.

The note does contain the unit number in it so I was wondering if I could do anything there to somehow relate the note to the unit number?

Thanks!

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1 Answer

  1. Editorial Team

    If notes should always be related to units, your best best is to fix the design not hack it up with something that will be a performance killer. Why can’t you add a column for unitid, populate it once using the hack to get existing data and then have the user interface changed to add the unit id when it adds the note?

    Incidentally you are using a text field and those are deprecated, you probably should look at changing it to a varchar(max) as soon as possible (this assumes you are on SQL Server 2005 or higher).

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