SQL: Need help with query construction.
- by Geeknidas
Hi Guys,
I  am relatively new with sql and I need some help with some basic query construction.
Problem: To retrieve the number of orders and the customer id from a table based on a set of parameters.
I want to write a query to figure out the number of orders under each customer (Column: Customerid) along with the CustomerID where the number of orders should be greater or equal to 10 and the status of the order should be Active. Moreover, I also want to know the first transaction date of an order belonging to each customerid.
Table Description:
product_orders
Orderid CustomerId Transaction_date Status
------- ---------- ---------------- -------
 1       23         2-2-10          Active
 2       22         2-3-10          Active
 3       23         2-3-10          Deleted
 4       23         2-3-10          Active
Query that I have written:
select count(*), customerid
  from product_orders
 where status = 'Active'
 GROUP BY customerid
 ORDER BY customerid;
The above statement gives me
the sum of all order under a customer
id but does not fulfil the condition
of atleast 10 orders.
I donot know how
to display the first transaction date
along with the order under a
customerid (status: could be active
or delelted doesn't matter)
Ideal solutions should look like:
Total Orders CustomerID Transaction Date (the first transaction date)
------------ ---------- ----------------
11           23         1-2-10
Thanks in advance. I hope you guys would be kind enough to stop by and help me out.
Cheers,
Leonidas