Solved

Crosstabs versus subreports... which are better in a group footer

Posted on 2014-01-20
5
303 Views
Last Modified: 2014-01-20
I need to do some summarizing in my crystal reports group footer.   I know that you shouldn't use "subreports"  in the detail or  group footer because to  the overhead, but are crosstabs any better?  Would a crosstab be more efficent and less overhead in this situation?
0
Comment
Question by:Mike Johnson
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 18

Expert Comment

by:vasto
ID: 39794727
Subreports should not be used in the details section because it is a separate report with a separate call to the database. Pacing it in the details section means that a new report will be started for each record in the details section of the main report. Crosstab is a calculation inside the same report and even if there will be some additional processing , it should be not so bad as the subreport. I would try the crosstab.
0
 

Author Comment

by:Mike Johnson
ID: 39794790
Thanks
0
 
LVL 101

Accepted Solution

by:
mlmcc earned 255 total points
ID: 39794953
I agree, a crosstab should be better.  It should work so long as the summarizing you are doing is over the full recordset for the group.

mlmcc
0
 

Author Comment

by:Mike Johnson
ID: 39795075
Just curious... I'm assuming the "crossTabs" use the main report query, as were with the subreports have their own query.  Thus the increaased I/O with the subreports?
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 39795382
Yes, that is in general true.

Sometimes the subreport effect is negligible other times it is very noticeable.

mlmcc
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.
Via a live example, show how to setup several different housekeeping processes for a SQL Server.

724 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question