I am trying to come up with a query that shows duplicate last names and the
order numbers for each occurance of.
I can get as far as determining the duplicates but my query result only
outputs one order for each.
Here is my current query, an example of the results and an example of the
results I
Please post the structure of your orders table. (SHOW CREATE TABLE
orders). I need to know what you are using as a primary key in order to
help you to uniquely identify each duplicated row.
Shawn Green
Database Administrator
Unimin Corporation - Spruce Pine
Paul Fine [EMAIL PROTECTED] wrote
If you are using 4.1, you can look into the GROUP_CONCAT function.
Otherwise, try a self join like this:
SELECT A.LastName,A.OrderNum,B.OrderNum
FROM Orders AS A
LEFT JOIN Orders AS B ON A.LastName=B.LastName
WHERE A.OrderNum!=B.OrderNum
ORDER BY A.LastName
That joins the Order table with itself
Brent Baisley wrote:
If you are using 4.1, you can look into the GROUP_CONCAT function.
Otherwise, try a self join like this:
SELECT A.LastName,A.OrderNum,B.OrderNum
FROM Orders AS A
LEFT JOIN Orders AS B ON A.LastName=B.LastName
WHERE A.OrderNum!=B.OrderNum
ORDER BY A.LastName
That joins the
