I wrote an ASP script which verifies that the status of a product should be either Archive or Current depending on the existance of prices in a separate table. It runs a little slow, however. I'm thinking there may be a way to combine these into one query that would run a lot faster, instead of using so much ASP. Here is basically what I'm doing:
<%
set rs1=cn1.execute("select modelnumber, status from tbl_products where status='Archive'")
do until rs1.eof
set rs2=cn1.execute("select status from tbl_prices where modelnumber='" & rs1("modelnumber") & "' and status='Current'")
if not(rs2.eof) then cn1.execute("update tbl_products set status='Current' where modelnumber='" & rs1("modelnumber") & """)
rs1.movenext
loop
%>
I know how to combine tables, but not sure how to sort out the values I'm looking for and modify the table "on the fly". Not even sure if this can be done. Any help would be greatly appreciated!
Thanks,
Brad
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run as one sql statement
update tbl_products
set status='Current'
from tbl_prices
inner join tbl_products on tbl_products.modelnumber = tbl_prices.modelnumber
where tbl_products.status='Archi
so u'll only be using one recordset as so, rather than 2
set rs1 = cn1.execute("update tbl_products set status='Current' from tbl_prices inner join tbl_products on tbl_products.modelnumber = tbl_prices.modelnumber where tbl_products.status='Archi
OK, that sounds about right. I gave you a slightly simplified version, though, and I'm not sure I know how to use this logic on my actual script:
set rs1=cn1.execute("select modelnumber, status from tbl_products where modelnumber<>'' and not(modelnumber is NULL) and status<>'' and not(status is NULL) order by modelnumber")
do until rs1.eof
modelnumber=trim(rs1("mode
select case trim(rs1("status"))
case "Archive"
set rs2=cn1.execute("select archive from tbl_prices where modelnumber='" & replace(modelnumber,"'","'
if not(rs2.eof) then cn1.execute("update tbl_products set status='Current' where modelnumber='" & replace(modelnumber,"'","'
case else
set rs2=cn1.execute("select archive from tbl_prices where modelnumber='" & replace(modelnumber,"'","'
if rs2.eof then cn1.execute("update tbl_products set status='Archive' where modelnumber='" & replace(modelnumber,"'","'
end select
rs1.movenext
loop
So maybe its just two queries... one which changes the tbl_products status from Archive to Current, the other changes the status from Current to Archive, depending on what it finds in tbl_prices.
I hope I'm not asking for too much here, I appreciate your help. This type of query building is definitely over my head.
Thanks,
Brad
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Answer for Membership
by: angelIIIPosted on 2007-05-22 at 08:22:38ID: 19134716
I think you can make the update in 1 single sql:
<%
cn1.execute("update p set status='Current' from tbl_products p join tbl_prices pr on p.model_number = pr.model_number and pr.status = 'Current' and p.status = 'Archive' ")
%>