Re: [libreoffice-users] Re: Extremely Slow Base Report Builder

Tom Davies wrote:
> Hi :)
> I have just done a bit of digging around.
>
> Looking back through Andreas' answers
> http://nabble.documentfoundation.org/template/NamlServlet.jtp?macro=user_nodes&user=254826&i=80
>
> I found this but i'm not sure it's much help for you 
> http://nabble.documentfoundation.org/database-td3926217i20.html#a3928210
>
> This one seems to expand on the useful line at the end there
> http://nabble.documentfoundation.org/Base-3-5-2-2-hangs-td3910280.html#a3911654
>
> This one is a bit of an overview with nothing specific but might be useful to skim through for ideas
> http://nabble.documentfoundation.org/Address-Books-td3829696.html#a3832514
>
> This one looks brilliant to me
> http://nabble.documentfoundation.org/Base-and-new-Report-Builder-in-3-5-td3817159.html#a3819387
>
> There is some documentation at 
> https://wiki.documentfoundation.org/Documentation/Publications#LibreOffice_Base_Guide
> and an FAQ (translated from the French team's) at 
> https://wiki.documentfoundation.org/Faq
>
> Sadly most of the people that know a lot about the ins-and-outs of Base are unwilling to help write the Base guide so it's down to 1 person who is desperately busy with a lot of other projects.  
>
> Regards from
> Tom :) 
>
>   
Tom,
Your "brilliant" link looks interesting.  I knew Calc and Base have some 
similarities internally, but I wasn't aware that my data could be 
imported into Calc from my MySQL server.  All of my reports are tabular 
in format anyway, so Calc could be an option, if it could get my data.  
One limit to using Calc would be Calc's row limit.  I think I read that 
LO just raised the maximum rows, but if there are more database records 
than available Calc rows, then...
Can Calc be linked to a Base query to get its data?
If so, then all my sorting can be done in the query.  I do not do any 
grouping in my reports at this time.

As an update to my problem with Report Builder, my 1500+ record database 
takes 94 pages of a Report Builder / Writer document.  I put on my 
patience hat and timed how long it takes to format the report, ready for 
printing.  As a baseline, it takes about 49 minutes to create the 
original document.  I cleared my preferences and re-entered them, using 
mostly defaults and timed it again: 49 minutes.  So it is not preference 
corruption from previous versions.  I then updated my java to 1.6u30 and 
timed it again: 49 minutes.  So, it doesn't look like Java is the 
problem.  I then went back to my original use of SQL from when I created 
the report with the wizard, rather than using a query for the data and 
timed it: 49 minutes!  No matter what I do, it takes about the same 
excruciatingly long time to build my report.  What is really frustrating 
is that there is no status popup to inform me of what it is doing.  It 
just goes out to lunch.  Actually, it seems to initially create 128 
pages with header and footer, but no data, at the end of the first 
"sleep".  When the page status at the bottom of the writer window drops 
to 94 pages, I know it is done.  Every so many pages, it does come back 
alive for a second or two and then goes out to lunch again for several 
minutes.  Each time it returns, a few more pages are populated with data.
Girvin



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