Thanks a lot for your comments. We have an audit system which uses separate tables with similar structure to store different kinds of activities for a user. We want to report the number of activities per activity type per user. I'll consider to create a view first.
chr15athome wrote: > > Its hard to give advice when I have no real idea of your data structure, I > am unsure why you would have seperate tables for differents users unless > you mean graphically. > > If you have 5 separate tables 1 for each user then UNION seems to be the > only way to do it, unless you know Java, you could put the data into beans > and use a bean datasource to build your report. > > I always find that subreports can normally be replaced with groups, I > personally hate subreports...lol. > > Chris > > > chr15athome wrote: >> >> Sorry I forgot to mention that the info I gave is based on using >> iReport/jasperReports, not sure what you are using now but I definately >> recommend iReport. >> >> Chris >> >> >> chr15athome wrote: >>> >>> Hi Peter, >>> >>> If I understand your requirements correctly I think grouping would be >>> better than having multiple subreports. >>> >>> Grouping the data on users allows you to create a seperate table for >>> each user, you can also have a header and footer for each user and you >>> can also perform calculations and have totals at the bottom of each >>> group. >>> >>> Hope this helps. >>> >>> Chris >>> >>> >>> Peter Jin wrote: >>>> >>>> Hi, >>>> I may need to put several sub reports in the detail section in the >>>> master report. So the sub reports will get loaded many times. Will this >>>> cause significant performance issues? Does jasper cache data source for >>>> report in this case? >>>> >>>> My case: >>>> User's data are scattered in 5 tables and I need to put those data >>>> together under a particular user. I don't want to use UNION because HQL >>>> doesn't support it. In addition, Union 5 tables may result in a huge >>>> SQL. I have to use one sub report for each table and iterate users in >>>> master report and for each user iterate all sub reports to display data >>>> relevant to that user. >>>> >>>> Is this viable or any other solution? >>>> >>>> Any comment is appreciated. >>>> >>> >>> >> >> > > -- View this message in context: http://www.nabble.com/How-about-loop-a-sub-report--tp23847733p23865781.html Sent from the jasperreports-questions mailing list archive at Nabble.com. ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ jasperreports-questions mailing list jasperreports-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jasperreports-questions
