Re: Clean up shop database
От | Richard Klingler |
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Тема | Re: Clean up shop database |
Дата | |
Msg-id | 20220119134059286538.4c015b19@klingler.net обсуждение исходный текст |
Ответ на | Re: Clean up shop database (Rob Sargent <robjsargent@gmail.com>) |
Ответы |
Re: Clean up shop database
(Rob Sargent <robjsargent@gmail.com>)
|
Список | pgsql-sql |
Odd...gives me the same result.... Tried another approach as the ordered is known where to start from....but still the same: select p.productid as id, p.name_de as name from product p, orderitems i,orders where p.productid = i.orderitems2productid and i.orderitems2orderid = orders.orderid and orders.orderid < 14483 and p.pieces < 1 and p.active = 't' group by id order by id desc Still lists products after January 1st 2021...but I know what is going on.... For example the query above returns as the first product id 47387: id name 47387 Carpet 70x120cm 47373 Mug Mynte Lavender Now when I look for order items where this product is: select o.orderid, o.orderdate, i.orderitemsid, p.productid from orders o, orderitems i, product p where p.productid = 47387 and p.productid = i.orderitems2productid and o.orderid = i.orderitems2orderid It gives me: orderid orderdate orderitemsid productid 19157 2021-02-08 88304 47387 17600 2020-10-13 81281 47387 14462 2019-12-28 67561 47387 So the initial query somehow gives all products that have been ordered at least before January 1st 2021 but not only before that date. cheers richard On Wed, 19 Jan 2022 05:04:09 -0700, Rob Sargent wrote: > On 1/19/22 04:03, Richard Klingler wrote: >> Good morning (o; >> >> >> I am in the process of migrating an online shop to another system and >> therefore >> also want to clean out products that haven't been re-stocked for a time. >> >> Now this simple query returns all order ids younger than 750 days: >> >> select orderid, orderdate from orders >> where (now() - orderdate) < INTERVAL '1000 days' >> order by orderdate asc >> >> So it shows me orders beginning from January 1st 2020...all fine. >> >> >> Now I want to list all products which stock is 0 and have only been >> ordered >> before those 750 days..so I use the above query in wrap it in the select >> with a "not in": >> >> select p.productid as id, p.name_de as name >> from product p, orderitems i, orders >> where p.productid = i.orderitems2productid >> and i.orderitems2orderid not in (select orderid from orders where >> (now() - orderdate) < INTERVAL '750 days') >> and p.pieces < 1 >> and p.active = 't' >> group by id >> order by id desc > something like this? > > select p.productid as id, p.name_de as name > from product p join orderitems i on p.productid = i.orderitems2productid > join orders o on i.orderid = o.orderid > where o.orderdate < 'January 1st 2020' > and p.pieces < 1 > and p.active = 't' > group by id > order by id desc >> >> >> Besides that this query takes over 70 seconds...it also returns >> products that have been ordered after January 1st 2020. >> >> So somehow this "not in" doesn't work as I am expecting it (o; >> >> >> thanks in advance >> richard >> >> >> > > >
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