SAME Query Returns different results
Posted on 2011-09-29
I have the query below, and it has prompted the question today.
where (Discontinued = 0 or Discontinued = null)
and (Accessory = 0 or Accessory is null)
and (ltrim(Rtrim(PartNumber)) not in (Select distinct ltrim(Rtrim(PartNumber)) from DB..TableB))
and (ltrim(Rtrim(PartNumber)) not in (select Distinct ltrim(Rtrim(PartNumber)) from DB..TableC))
The first 5 times I ran the query zero records were returned, which I know was incorrect, on the 6th time running the query, WITHOUT modifying it or any data with in the databases, I received over 600 results which is more along the lines of what I am expecting.
I have seen this once before but marked it up as a PC issue as I was having a lot of issues with the PC that day.
What would cause this behavior when the query is not returning what it should and then with out any changes it starts returning the correct records?