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07.27.2008 at 03:02PM PDT, ID: 23599350
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8.3

SQL grouping question

Asked by countrymeister in SQL Query Syntax, SQL Server 2005

Tags: ,

I have an SQL programming issue to tackle regarding duplicate orders

I have a table called BookOrders which I need to check if there are any duplcate orders booked.
Curently the logic uses BookName, Price, Qty, Buyer to see if there are duplicate orders

Example
select BookName, Price, Qty, Buyer from BookOrders
group by BookName, Price, Qty, Buyer
having count(*) > 1

The issue is I am missing the duplicates when the buyer has placed multiple lots fo orders with a slight variance in price and when the qty does not match

For example say the buyer has placed an order and the BookName, Price, Qty, Buyer is as follows
BO123, 10.00, 20, BUYER-PO19

Now if the buyer BUYER-PO19 had placed another few orders for the same book
BO123, 10.50, 10, BUYER-PO19
BO123, 9.50, 5, BUYER-PO19
BO123, 9.80, 5, BUYER-PO19

The average price of the above three order is 9.93 and they sum to the qty of 20

How can I check this procedurally that if I have another order within a variance of say 10% and the sum of which equals any other order
BO123, 10.50, 10, BUYER-PO19
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[+][-]07.27.2008 at 03:18PM PDT, ID: 22099751

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[+][-]07.27.2008 at 03:21PM PDT, ID: 22099756

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[+][-]07.27.2008 at 05:29PM PDT, ID: 22100120

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[+][-]07.27.2008 at 09:37PM PDT, ID: 22100713

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[+][-]07.27.2008 at 11:34PM PDT, ID: 22101016

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[+][-]07.28.2008 at 01:15AM PDT, ID: 22101399

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About this solution

Zones: SQL Query Syntax, SQL Server 2005
Tags: T-SQL, T-SQL Microsoft
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Solution Provided By: mark_wills
Participating Experts: 3
Solution Grade: A
 
 
 
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