Null values in facts, yes or no? | jochem_van

NULL Values in Fact Table

In an Accumulating Snapshot that has multiple dates, where we are revisiting the fact rows as additional events occur, should the foreign keys to the date dimension for dates that have not yet occurred be set to NULL or should they point to a

null values best practice digest

Hi all, i read all the post and design tips about null values management. Can you tell m if the following statements are right or wrong for you : Dimension attributes null values management : For string dimension attributes, use : "Not

How to manage nulls in Fact talble

Hello, I am new with data warehousing. I need some help with following questions 1. should the nulls be left as nulls in fact table or should they be replaced with some number that might never be used like -7 or -1. If they should be replced with -1/-

SCD type 2 - Valid To Date Value? 12/31/9999 or Null?

Hello all, While populating Effective End Date (Valid to date) for current record, is it better to put a largest possible end date value of 12/31/9999, or is it better to insert a null value. One advantage of inserting 12/31/9999 as end date is that

Measures as Dimensions: Banding Approach Help

I have a standard fact table with a number measures; several of which are in the form of time (e.g., minutes) and others in the form of integers. The fact table and related dimensions are exposed to users via BusinessObjects XI v2 Web Intelligence. One of

Have You Scrutinized The Facts About Juicing, Healthy Diet, Juicing For Better Health

By David Wellsford We are all very aware today the benefits of good nutrition, and the vitamins, and minerals that are necessary for our health. What do we know about juicing, healthy diet, juicing for better health? What does juicing mean? Making

16 Amazing Science Facts

1. Fingernails grow four times faster than toenails 2. Right handed people live, on average, nine years longer than left-handed people 3. If you rub an onion on your foot within 30 60 minutes you will be able to taste it this is because it

read values from runScript method

hi, my javascript function call which is defined in browser is not working with geteval so i am using runScript, I am able to get the values in alert but don't how to read these values? selenium.runScript("alert(getBoundaries());"); PLeas

Android Sensor API

Hi, Android Sensor API Sensor support in Android is fairly simple yet versatile. It is handled via the SensorManager which is provided from your app context via getSystemService(). Once you have the sensor manager, you have to register to get its

Montly Snapshot views with transactional Fact table w/SCD2

I am a new at working with Dimensional Database design. I am struggling with something that probley is real easy to do, but just can't find documentation that will explain it. I want to create a monthly snapshot view of my transactional Fact table with

your interesting facts

so basically you put interesting facts about yourself such as something really good or really bad you have done,something really good or really bad that has happened to you, or just something you want to share about yourself.you can also put any

"Previous" attributes

I am working on a HR Enterprise datawarehouse. I have a requirement for a number of "previous" attributes. For example, an employee's previous business unit, supervisor, last name. Business Unit, Manager already have their own Type 2 SCD

Eating in the shower

Does anyone else like to eat food while you're in the shower? I do this every now and again. It's usualy something simple like pizza pockets and other microwave snacks. I think I tried it with a sandwich once. It's a bit silly and a tad tricky but with a