Category: Uncategorized
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my Samsung Galaxy Tab 10.1 keeps rebooting immediately after start-up – how to reset
Basically “power on” with also “volume up” and home button pressed. That will lead you to the “Android Recovery Screen”. You will want to restore the factory settings.
I stopped using the tablet myself quite some time ago, I prefer my MacBook Air. I let my 10 year old son use it exclusively. I guess one of his latest apps causes the problem. Of course I would like to be able to remove the latest apps – but in state the tablet is currently in, there is no way to really do anything but wait for the instant reboot.
My poor little son will loose all his game states i.e. progress. Actually his biggest fear was, that all the purchased games would no longer be available. But that’s not right. We can determine what to re-install from within Google Play.
Update 2017-03-07: Recovery mode: Clear Cache: Clear data.
Update 2017-03-12: Our tablet has no home button 😕 So we cannot apply this recipe.
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free O’Reilly Book: “Is Reporting Dead?” (with emphasis on JasperReports) (sponsored by TIBCO Jaspersoft)
- https://www.jaspersoft.com/resource/free-oreilly-book-enterprise-reporting
- http://www.oreilly.com/pub/e/3840 – webcast: Time for Action: Bring Operational Reporting to the 21st Century
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Jewish holidays: 4 New Years
- 1 Tishrei (conventional “Rosh Hashanah”)
- 15 Shevat (Tu Bishvat): “new year” for trees – i.e., their current agricultural cycle and related tithes
- 1 Nisan: …
- 1 Elul: “new year” for animal tithes
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Sofico Miles: “auto & asset finance, leasing, fleet and mobility management software”
- http://www.sofico.be/solutions/benefits/finance
- http://www.sofico.be/solutions/markets/vehicle-leasing-rental : “Managing the entire leasing process efficiently“
They are using Oracle DB as RDBMS and JasperReports for creating PDF documents.
Yesterday I attended a one day introduction to their data model, called GALAXY.
They supply their customers with sample JaspersReports documents, actually “.jasper” files. “.jasper” files can be losslessly transformed to JRXML files. JRXML files can get operated on and inspected in iReport, a GUI editor – but in fact you are not able to preview or even print these samples. For “running” a JRXML (or “.jasper”) file, you need to supply parameters and the framework will run a SQL query to retrieve data from the database. If you are just starting to explore the supplied samples, you don’t want to bother with those parameters and the data available in your database – you just want to print the sample documents with the fieldnames printed themselves (resp. something descriptive at least) instead of sample values. But Sofico do not supply you with any such documents or documentation.
I guess I am going to prepare “a couple of” such documents “for myself” next week – “sample invoice” etc. look quite intriguing.
I really wonder, how the SQL for filling this kind of documents looks like. Usually in the RDBMS context you are operating on a cursor, to retrieve “sister details” efficiently. But how would you deal with a kind of cursor in this context? (PL/SQL?!?)
For creating my “meta documents” I won’t use iReport – but rather my favourite text editor “in XML mode” (i.e. GNU Emacs with nxml-mode). I am really, really excited to start that – but this is Friday afternoon, just a little before Kabbalat Shabbat, and no access to the sample documents – what a pity!
In our Sofico Miles implemtation project my task is to create business documents – maybe similar to the sample documents – but I (we?) don’t really know. Searching the database views (the GALAXY) for the proper details (needed for filling the business documents) looks just too fatiguing – I rather learn and copy from these sample documents – actually that looks like the way, that Sofico teaches their customers to learn themselves how to deal with their data model.
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a Google Chrome plugin: Microdata.reveal
The Chrome Task Manager just showed me that this plugin consumed 1.2 GB of memory. I immediately removed the plug-in for that reason.
I really like the idea of incorporating microdata into HTML documents.
On en.wikipedia.org and de.wikipedia.org (wikis based on MediaWiki) there are templates (for citing web resources and literature) that create microdata into the HTML, and I quite favour using them.
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my browser (“Chrome”) and my webmail access (“Horde (software)”) had a “conflict”
Since last night my ISP did not let me log in – that’s what it looked like. I called in, they did not notice any general problems, suggested I should try Chrome’s “icognito mode” in order to bypass Chrome’s cookies (wrt the website in question), and “bingo!”: succesful log-in. If “icognito mode” works, then removing the website respective cookies helps as well – and that assumption holds.
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VirtualBox needs “occasional” reboots for best performance
I am running VirtualBox on a MacBook Pro (Mac OS X 10.11.6).
It is running 2 virtual machines:
- Win8.1
- openSUSE
I hardly ever completely shut down the MacBook, I always only pause it.
I “never” shut down the virtual machines, I only pause them as well.
Until I shut down the virtual machines and VirtualBox and also upgraded it today, “this” was going on now for like 2 months. The performance of the guest OSs degraded more and more, the CPUs got eaten up by VirtualBox activity. But after today’s reboot everything is as fine as it always was, when I truly enjoyed it.
But why does the performance degrade that badly? Really, really strange.