error,again

[alexqa2003]

tentaively, got:
create #table(a,b,c,d)
insert into #table
select A,B,C,D
from s,t,x,y,z where y.price > 20

select *,
(select max(D) from
(select distinct top 2 with ties from #temp v where
v.B=W.B and v.C = W.c),
(select min(D) from
(select distinct top 2 with ties from #temp v where
v.B=W.B and v.C = W.c)
from #temp w
drop Table #temp

This works, but if y.price > 20 condition is not met,
unsupported error message gets produced within crystal
report. i expected blank field report instead in this
case,

included If exists around the select statement ,
still same error.

BTW, is there a way to find max(D) and min(D),
two highests, can be improved?.

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[Erland Sommarskog]

al********@yahoo.com (u1********@spawnkill.ip-mobilphone.net) writes:

tentaively, got:
create #table(a,b,c,d)
insert into #table
select A,B,C,D
from s,t,x,y,z where y.price > 20

select *,
(select max(D) from
(select distinct top 2 with ties from #temp v where
v.B=W.B and v.C = W.c),
(select min(D) from
(select distinct top 2 with ties from #temp v where
v.B=W.B and v.C = W.c)
from #temp w
drop Table #temp

This works, but if y.price > 20 condition is not met,
unsupported error message gets produced within crystal
report. i expected blank field report instead in this
case,

If the condition is not met, the temp table is empty, and you will
get no rows back at all.

You could do:

IF EXISTS (SELECT * FROM #temp)
SELECT *, ...
ELSE
SELECT NULL, NULL, NULL, NULL, NULL, NULL -- As many as needed.

Although, it would be better to rewrite the report to handle an
empty result set....
--
Erland Sommarskog, SQL Server MVP, so****@algonet.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techinf...2000/books.asp