Hopefully you sql guru's can help me out a bit. :)
Here is the short example of what I want to accomplish. I wish to have the difference between two different select queries. So if one query pulls records 1,2,3 and 4 and the second pulls records 1 and 4 I wish to have only the records 2 and 3. How can I accomplish this easily.
In case that doesn't make sense here is the long version. I have two tables that are keyed together through an id field. However this is not a one to one relationship, it is a one to many relationship. The following is an example of the table
Table 1 Table 2 ------------------ ---------------- ID relid rid vid
Table 1 and table two are linked through the columns id and rid. There can be many links between id and rid so the link is further refined through a vid field. What I need is all records in table 1 that will not link to table 2 such that relid=rid and vid=46
Which means that I want to find the parents who don't have children 46.
A great way to do this would be with a minus operator but that isn't supported. Or to add two queries to a temporary table then delete the duplicate records but I don't know how to do that either.
I hope this is clear I know it's confusing. But it's really slowing me down.
Joe
