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  #1 (permalink)  
Old April 30th, 2007, 11:49 AM
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Default new display count query

SELECT v.category, COUNT(v.category) AS issue_count, c.color
FROM TICKET_VIEW v, COLORTBL c
WHERE (c.min_issues > issue_count) AND (c.max_issues <= issue_count)
GROUP BY v.category
ORDER BY v.category


i keep getting these errors:
"you tried to execute a query that does not include the specified expression 'color' as part of an aggregate function."
or
"no value given for one or more parameters."

can someone tell what i am dong wrong and why this query will not execute?
thank you

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Old April 30th, 2007, 11:53 AM
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well.. c.color is not part of an aggregate function... what do you expect to receive from this query???

also be aware that that query do a full join bettween the two tables.. (b/c there is no relation between v and c)...

HTH

Gonzalo

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Old April 30th, 2007, 12:14 PM
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I would like to count 5 categories, which will be based on the group_name that has the most values. (eg group_name1 was chosen 10 times, group_name2 was chosen 3 times all for category1, then the image in the cell next to category 1 should be red, because errorcode1 contained the most values for that category.

eg of how the webpage looks:
(5 categories, 5 group_names, 3 images for colorcode)

Ticket_view
Category 1 --> group_name1(10) red
Category 2 --> group_name2 (6) yellow
Category 3 --> group_name3 (5) yellow
Category 4 --> group_name4 (3) green
Category 5 --> group_name5 (1) green

Colortbl.dbo
color -------> green, yellow, red
min_issues --> 1, 3, 5
max_issues --> 3, 5, 999999999


legend:
green - 0-3 errors
yellow - 4-6 errors
red - 7+ errors



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Old April 30th, 2007, 12:24 PM
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just and idea (the syntax could be a little wrong, I'm writing this here)...

Code:
 SELECT c.color, s.cat, s.issue_count FROM
(SELECT     v.category, COUNT(v.category) AS issue_count
FROM         TICKET_VIEW v
GROUP BY v.category
ORDER BY v.category) s, COLORTBL c
WHERE     (c.min_issues > s.issue_count) AND (c.max_issues <= s.issue_count)
HTH

Gonzalo

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Old April 30th, 2007, 12:33 PM
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Originally posted here:
http://p2p.wrox.com/topic.asp?TOPIC_ID=59303

and here as well
http://p2p.wrox.com/topic.asp?TOPIC_ID=59304

You never followed up with me in the source thread??

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Old April 30th, 2007, 12:41 PM
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thank you for your help, it looks like i am getting closer, that query actually does execute but displays no results. what does the s in s.category, s.issue_count relate to?

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Old April 30th, 2007, 12:54 PM
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doug gives you a nice solution too.. why didn't you followed him up???

anyway the s are related to the inner select (the one in the from)... did that select return something???

HTH

Gonzalo

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Old April 30th, 2007, 01:18 PM
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yes, i got the query to return records. i used the solution doug provided me as well, but our dba did not want to use the case statements for some reason??? thank you both for all of your help!!!

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Old April 30th, 2007, 01:22 PM
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you could just tell doug that and eventually we would find another way to do it... you didn't need to start a new thread... and glad you make it work...

HTH

Gonzalo

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Old May 7th, 2007, 04:59 PM
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o.k this one query is driving me nuts. i got records to display but not the way i need them to. one of my buddies said that i cannot write this query with 1 statement that it has to be in 2 and loop. i got the 1st part to return records, count the records, but i cannot get it to count the issues and associate it with a color from the colortbl. help please

1). SELECT v.category, COUNT(v.category) AS issue_count
FROM TICKET_VIEW v
GROUP BY v.category
ORDER BY v.category

Then go through these results:

2) select color

from colortbl

where c.min_issues > $issue_count and c.max_issues <= $issue_count


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