I am working in a sub report. Visual Studio 2010 if relevant.
My first table has a unique record for every row in the details section. I am then attempting to use a Left Outer Join to join a second table to the first but then sum those values where there may be more than one row in table two per table one.
Right now I am having a problem with row duplication and the values from table two will not sum and instead print out individually. I have tried using groups and tried using Sum formula fields without success.
My first table is unique on a Record Number, Component and Sequence.
My second table also has those three items but may contain no record per the first table, one or multiple.
The Record Number and Component are passed to the report as parameters and are used in select expert. So really Sequence is only a unique record in my first table.
I have tried Group By Record Number, Component and Sequence for Table one. I have also tried Grouping by Sequence for Both Tables. I have tried adding a sum formula and even tried a running total without success.
Is this something that is possible? Is there something I may have missed trying?
Edit:
What I am current getting
Seq T1 Data T2 Data
10 A1 35
20 C2 25
20 C2 15
30 D5 30
40 D6 10
40 D6 50
What I am looking for
Seq T1 Data T2 Data
10 A1 35
20 C2 40
30 D5 30
40 D6 60
I finally figured it out. I grouped by Table 1 Sequence, then Table 2 Sequence (not sure if grouping by both is necessary). Then I used a Running Total Field in Group Footer right after the details section (Group for Table 2) and set the Reset value to On change of group 1 (Table 1).
Related
I have a view, A, with 20 columns which forms my primary data. I have a table B which lists some of the columns from A and contains data I want to exclude from A.
For example table B will have 6 columns 2 of which are 'customer' and 'country' and contain the data 'HP' and 'America'. These columns exist in A. But I want to write a query that brings back data from A except where any rows that have a combination HP and America.
There are 6 columns and table B can have any combination of rows. Anywhere between 1 and all 6 rows could be filled in or there could be a row which has 5 columns filled in. Also another row with a different 5 columns filled in and so on.
I want to be prepared for any possible combination of the 6 rows and the query to search A for the combination and exclude any rows with that data from B.
I have tried this
SELECT *
FROM A T1
WHERE not EXISTS
(SELECT * FROM [dbo].[ExcludedItems] T2
WHere ReportNumber=1
AND
(
T1.job=ISNULL(T2.job,T1.job) and T1.CustomerName=ISNULL(T2.CustomerName,T1.CustomerName) and
T1.COUNTRY= ISNULL(T2.COUNTRY,T1.COUNTRY) and T1.CONTINENT=ISNULL(T2.CONTINENT,T1.CONTINENT) AND
T1.continer= ISNULL(T2.ContainerName, T1.continer) and T1.UnscheduledJob= ISNULL(T2.unscheduledJob, T1.UnscheduledJob) and
T1.[Price]= ISNULL(T2.Price, T1.Price) and
T1.[Haulage]= ISNULL(T2.[Haulage], T1.[Haulage]) and
T1.SiteAdress= ISNULL(T2.SiteAddress, T1.SiteAdress) and T1.Delta=ISNULL(T2.Delta, T1.Delta) and
T1.Cost= ISNULL(T2.Cost, T1.Cost)
)
)
The problem is the result set is not correct. I have tried with a smaller column sample and able to exclude the correct combination of Customer and Country but when I introduce a 3rd or 4th column combination I can eyeball the result set and immediately see its incorrect. Not sure if I have to use multiple NOT EXISTS for each possible combination, was hoping not to.
A constraint is A has to be a view not a table. Otherwise I would have used variables in some manner and wrapped the whole thing in a stored procedure.
Appreciate any help, fall back is to manually add to the code each time an item combination is supplied in B!
I have a table which looks like this
id login_id trend_type sep oct nov
1 abc#abc.com Billing 10 34 43
1 abc#abc.com Visits 20 43 56
1 abc#abc.com Revenue 30 12 12
1 pqr#pqr.com Billing 40 23 54
1 pqr#pqr.com Visits 50 21 47
1 pqr#pqr.com Revenue 60 98 12
I want to create a dashboard where I can display graphs of all these Trend Types and add a filter for the user so they can select the month for which they want to view the graphs.
I have tried this solution -
https://community.tableau.com/thread/228965
but I wasn't successful.
Tableau really likes data that is taller rather than wider. In this case, you need to do a PIVOT on the month data. A pivot will create a column for the months and another column for the values. Your data will have more rows now but fewer columns.
When you bring the data into Tableau, on the Data Source screen, highlight the three month columns and select pivot.
You can also change the name of the Pivot Field Names (to Month) and Pivot Field Values (to Amount or another appropriate name).
Click on the orange Sheet 1 on the bottom left. Next, create a calculated field to create a full date. (Tableau doesn't know what 'sep' is.)
[Pivot Field Names] + "-01-2019"
This field just creates a string that Tableau can parse (eg 'sep-01-2019'). Now tell Tableau it is a Date field by changing the field type (click on the Abc next to the Dimension name).
At this point, you can create a viz and add filters. Here is an example.
I'm completely rewriting my question to simplify it. Sorry if you read the prior version. (The previous version of this question included a very complex query example that created a distraction from what I really need.) I'm using SQL Express.
I have a table of lessons.
LessonID StudentID StudentName LengthInMinutes
1 1 Chuck 120
2 2 George 60
3 2 George 30
4 1 Chuck 60
5 1 Chuck 10
These would be ordered by date. (Of course the actual table is thousands of records with dates and other lesson-related data but this is a simplification.)
I need to query this table such that I get all rows (or a subset of rows by a date range or by student), but I need my query to add a new column we might call PriorLessonMinutes. That is, the sum of all minutes of all lessons for the same student in lessons of PRIOR dates only.
So the query would return:
LessonID StudentID StudentName LengthInMinutes PriorLessonMinutes
1 1 Chuck 120 0
2 2 George 60 0
3 2 George 30 60 (The sum Length from row 2 only)
4 1 Chuck 60 120 (The sum Length from row 1 only)
5 1 Chuck 10 180 (The sum of Length from rows 1 and 4)
In essence, I need a running tally of the sum of prior lesson minutes for each student. Ideally the tally shouldn't include the current row, but if it does, no big deal as I can do subtraction in the code that receives the query.
Further, (and this is important) if I retrieve only a subset of records, (for example by a date range) PriorLessonMinutes must be a sum that considers rows that are NOT returned.
My first idea was to use SUM() and to GROUP BY Student, but that isn't right because unless I'm mistaken it would include a sum of minutes for all rows for each student, including rows that come after the row which aren't relevant to the sum I need.
OPTIONS I'M REJECTING: I could scan through all rows in my code that receives it, (although this would force me to retrieve all rows unnecessarily) but that's obviously inefficient. I could also put a real data field in there and populate it, but this too presents problems when other records are deleted or altered.
I have no idea how to write such a query together. Any guidance?
This is a great opportunity to use Windowed Aggregates. The trick is that you need SQL Server 2012 Express. If you can get it, then this is the query you are looking for:
select *,
sum(LengthInMinutes)
over (partition by StudentId order by LessonId
rows between unbounded preceding and 1 preceding)
as PriorLessonMinutes
from Lessons
Note that it returns NULLs instead of 0s (zeroes). If you insist on zeroes, use COALESCE function to turn NULLs into zeroes.
I suggest using a nested query to limit the number of rows returned:
select * from
(
select *,
sum(LengthInMinutes)
over (partition by StudentId order by LessonId
rows between unbounded preceding and 1 preceding)
as PriorLessonMinutes
from Lessons
) as NestedLessons
where LessonId > 3 -- this is an example of a filter
This way the filter is applied after the aggregation is complete.
Now, if you want to apply a filter that doesn't affect the aggregation (like only querying data for a certain student), you should apply the filter to the inner query, as pruning the rows that don't affect the computation early (like data for other students) will improve the performance.
I feel the following code will serve your purpose.Check it:-
select Students.StudentID ,Students.First, Students.Last,sum(Lessons.LengthInMinutes)
as TotalPriorMinutes from lessons,students
where Lessons.StartDateTime < getdate()
and Lessons.StudentID = Students.StudentID
and StartDateTime >= '20090130 00:00:00' and StartDateTime < '20790101 00:00:00'
group by Students.StudentID ,Students.First, Students.Last
I'm trying to work on a report for a client. Basically I need something like such
Group 1: Customer ID
Group 2: Truck ID
CustID Vehicle ID Detention Time
------ ---------- --------------
ABX 100 60
35
20
TOTAL: 115
200 80
15
TOTAL: 95
300 10
TOTAL: 10
TOTALS FOR CUSTOMER ABX
100 115
200 95
300 10
Is there anyway to accomplish this without a subreport? I was hoping for a "summary field" that I could summarize more than just a single value.
Thanks!
(FYI using Crystal Reports 2008)
Use a crosstab; place it in the report-footer section.
There might be a better way to do this, but the one that comes to mind is to use two arrays: One to store the truck ID and another to store the corresponding total. In each inner grouping (TruckID), just tack on another array element and store its total time. To display, you could cast the values to strings, attach a newline character after each entry, and set the field to "Can Grow". So altogether, you'd need three formulas: one to initialize the arrays (in GH1), one to update the arrays with sum({truck.time},{truck.ID}) (in GF2), and one to display each entry (in GF1).
With that being said, CR has terrible support for containers... You're limited to 1-dimensional, non-dynamic arrays that are gimped at 1000 items max. It doesn't sound like these would be big problems for what you're trying to do, but you will need to redim preserve the arrays unless you know ahead of time how many trucks you'll have per customer.
Imagine I have a MSSQL 2005 table(bbstats) that updates weekly showing
various cumulative categories of baseball accomplishments for a team
week 1
Player H SO HR
Sammy 7 11 2
Ted 14 3 0
Arthur 2 15 0
Zach 9 14 3
week 2
Player H SO HR
Sammy 12 16 4
Ted 21 7 1
Arthur 3 18 0
Zach 12 18 3
I wish to highlight textually where there has been a change in leader for each category
so after week 2 there would be nothing to report on hits(H); Zach has joined Arthur with most strikeouts(SO) at
18; and Sammy is new leader in homeruns(HR) with 4
So I would want to set up a process something like
a) save the past data(week 1) as table bbstatsPrior,
b) updates the bbstats for the new results - I do not need assistance with this
c) compare between the tables for the player(s with ties) with max value for each column
and spits out only where they differ
d) move onto next column and repeat
In any real world example there would be significantly more columns to calculate for
Thanks
Responding to Brents comments, I am really after any changes in the leaders for each category
So I would have something like
select top 1 with ties player
from bbstatsPrior
order by H desc
and
select top 1 with ties player,H
from bbstats
order by H desc
I then want to compare the player from each query (do I need to do temp tables) . If they differ I want to output the second select statement. For the H category Ted is leader `from both tables but for other categories there are changes between the weeks
I can then loop through the columns using
select name from sys.all_columns sc
where sc.object_id=object_id('bbstats') and name <>'player'
If the number of stats doesn't change often, you could easily just write a single query to get this data. Join bbStats to bbStatsPrior where bbstatsprior.week < bbstats.week and bbstats.week=#weekNumber. Then just do a simple comparison between bbstats.Hits to bbstatsPrior.Hits to get your difference.
If the stats change often, you could use dynamic SQL to do this for all columns that match a certain pattern or are in a list of columns based on sys.columns for that table?
You could add a column for each stat column to designate the leader using a correlated subquery to find the max value for that column and see if it's equal to the current record.
This might get you started, but I'd recommend posting what you currently have to achieve this and the community can help you from there.