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sql query question oracle

Posted on 2011-03-11
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Last Modified: 2012-05-11
K to start off, this is a proof of concept question, this is not the actual data that i am having a problem with.  

So what i am looking to do is to find the additional order_numbers between 2 queries.  For example, using the table in the image

select order_number from orders where sku like '406%' is going to return 6 records
these are the order_numbers
101, 102, 103, 105, 107, 108

so say there is another query
select order_number from orders where sku like '40%' is going to return 8 records
these are the order_numbers
101, 102, 103, 104, 105, 106, 107. 108

What i need to do is compare these two query results to find out the additional order_numbers in the second query that arent in the first so
104, 106

Obviously in this example it is simple to see the differences but like i said it is a proof of concept, i have already ran one query, it is being actively worked on so i just cant run the second query and get back all the results, i need to find the additions to be able to use.  

So to receive credit within one sql statement how can i compare the results of 2 select statements to find the additional order_numbers

I am on an oracle database but i would assume there is universal sql to handle this but perhaps not.
tempTable.jpg
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Question by:Brant Snow
2 Comments
 
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slightwv (䄆 Netminder) earned 350 total points
ID: 35111579
select order_number from orders where sku like '40%'
minus
select order_number from orders where sku like '406%'
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LVL 51

Assisted Solution

by:HainKurt
HainKurt earned 150 total points
ID: 35111819
or do this:

select t1.*
from
  (select *from orders where sku like '40%') t1
  left join
  (select order_number from orders where sku like '406%') t2
  on t1.order_number=t2.order_number
where t2.order_number is null
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