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Kaip sustiprinti akies tinklainę

November 1, 2009

Neseniai iš medicininio straipsnio perskaičiau, kad Omega 3 nesočiosios riebalų rūgštys padeda tinklainei.

Iš anksčiau buvo žinoma, kad reguliarus špinatų vartojimas, taip pat turi teigiamą poveikį. Ta medžiaga, atrodo vadinasi, liuteinas.

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Mėgstamiausi įrankiai

October 26, 2009

RockScroll – priedas Visual Studio, kuris slinkties juostą pakeičia patogesne, rodančia viso dokumento bendrą vaizdą. Be to, galima pamatyti pasirinkto kintamojo visas vietas dokumente. Neįsivaizduoju jau darbo be šio priedo.

image

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Kodėl man patinka ActiveGym, o ne Impuls

October 25, 2009

Vėl pradėjau lankyti ActiveGym. Esu mėgėjas, o ne profesionalas, todėl vertinsiu iš savo pusės.

Pirmiausia man patogu, nes netoli nuo namųm nereikia niekur važiuoti. Taip sutaupau laiko, pinigų ir sveikatos.

Bet didžiausias pliusas man, kad ten jaučiamas asmeninis dėmesys. Impuls primena McDonaldą, didelis tinklas, daug žmonių, užlenktos (į viršų) kainos. ActiveGym’e viskas jaukiau, visi treneriai išmano savo darbą, pataria ir pakonsultuoja. Kainos irgi geresnės. Bet kaina – ne pagrindinis rodiklis.

Impuls patogu, jei nori į baseiną (nors jis tik 25 metrų, tai daugiau reklamai, o ne rimtam plaukiojimui) ir gali si tuo pačiu abonimentu lankytis kituose miestuose. O man tenka dažnai būti savaitgaliais ne Vilniuje.

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Warehouse glossary

October 16, 2009

Tutorial

Bulding warehouse tutorial

Dimension Hierarchies

Dimension hierarchies introduce formal hierarchies into a business model, allowing Oracle BI Server to calculate useful measures and allowing users to drill down to more detail. In a business model, a dimension hierarchy represents a hierarchical organization of logical columns belonging to a single logical dimension table. Common dimension hierarchies used in a business model are time periods, products, customers, suppliers, and so forth.

Dimension hierarchies are created in the Business Model and Mapping layer and end users do not see them in end user tools such as Oracle BI Answers or Interactive Dashboards. In each dimension hierarchy, you organize dimension attributes into hierarchical levels. These levels represent the organizational rules and reporting needs required by your business. They provide the structure that Oracle BI Server uses to drill into and across dimensions to get more detailed views of the data. Dimension hierarchy levels are used to perform aggregate navigation, configure level-based measure calculations, and determine what attributes appear when Oracle BI users drill down in their data requests.

Logical tables

There are two main categories of logical tables: fact and dimension.

Fact tables

Logical fact tables contain the measures by which an organization gauges its business operations and performance.

Dimension tables

Logical dimension tables contain the data used to qualify the facts.

 

Source: Creating a Repository Using the Oracle Business Intelligence Administration Tool

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How to remove Clip Natur without buying panel trim removal tools

August 27, 2009

I had to put SILL STRIP FRONT (part Nr.3) in my car, but for that I needed to buy special tools to remove clips (part Nr.7). Hmmm, than I got brilliant idea. You can see it in photos below this text.

20090412

Took a screwdriver and cotton. Wrapped it around a clip and pulled up.

20090412(001)

Job done!

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ORA-12516: TNS:listener could not find available handler with matching protocol stack

August 27, 2009

Usually this error is got when Oracle express edition is used. It means, that .NET connection pool has many open connections hanging, too many for oracle.

To see how many sessions there are, log in as SYSDBA and execute this statement:

select count(*) from gv$session

Then check these two parameters in oracle:

select name, value from v$parameter where name in (‘processes’,’sessions’);

Then alter these parameters. Oracle professional has value of processes = 300. So you can increase it till this value. Commands to do that:

alter system set processes=300 scope=spfile;
alter system set sessions=300 scope=spfile;

 

This is kind of temporary solution. Usually this means that .NET program has some problems like forgotten to close connections. Or as we had using Subsonic 2.x with custom oracle provider and Subsonic.DatabaseTransaction object.

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On-line screensaver

August 25, 2009

Because I use flickr a lot, I found this screensaver Flickr .Net screensaver on codeplex. It just takes pictures from flickr and displays them as screensaver on your PC.

I liked two features: you can specify tags, by which it searches for the pictures. And it wraps picture with a nice frame. Than picture looks like it was taken with old kodak instant picture camera.

Frame around picture

Picture in a frame

Properties page to specify tags

Properties window

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Better Flickr uploader

August 25, 2009

Original flickr uploader is very slow, especially preparing big sets of pictures for a batch. Big, I mean ~500 pictures of 6Mpixels. BBy the way, for me, looks like this tool written on firefox-like platform.

image Flickr uploadr

Than I found Juploadr. Could not download because server gave 500 error :) . And it’s written in java=slow.

Today I’ve tried Vista Flickr Uploader. I was surprised, that same set of pictures it prepared less than in a minute. That’s awesome! It has some UI bugs, but it does the job: uploads pictures to your sets.

Vista flickr uploadrVista flickr uploadr

In general, I find more more interesting projects on codeplex. Sourceforge isn’t any more the only one open source projects’ hoster.

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ASP.NET Runtime Cheat Sheet

July 19, 2009

Today I’ve found a great asp.net cheat sheet. You can find it here http://duartes.org/gustavo/articles/Asp.net-Runtime-Cheat-Sheet-HttpRequest-HttpRuntime.aspx

Next I saw a recommendation to read a book about asp.net security in windows. The book is called “The .NET Developer’s Guide to Windows Security.”

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How to buy USB hub

July 12, 2009

When buying USB hub, there is one very important fact: USB hub must have external power source.It means, that if you buy USB hub, check if it has power supply. The problem is, that without external power supply, HUB often cannot give enough electrical power to USB devices connected to IT. Computer’s USB port has limited amount of electrical power to share with USB hub.