Why joiner transformation does not allow the aggregator transformation and expression transformation to join
2 9048Hi Friends, Can anyone tell me. is there any certification in Database testing or BI testing or ETL testing international certification? Thanks ArunKumar
1538why we use dmr model in cognos report studio ? give me difference between dmr model and relational model.
IBM,
1519a perceptron has two inputs x1,x2 wih weights w1,w2and bias weight of w0. the activation function of perceptron is h(x).the output of perceptron
1877what are the different views that are considered when building an object-oriented software system?
595Post New Data Warehouse General Questions
How can we load the time dimension?
Whether dimension table can have numeric value?
Explain what are fact, dimension, and measure?
What is the difference between star and snowflake schemas?
What is data stream and data adaopter?
How to add a number to a macro variable?
What are the different problems that ?Data mining? can solve?
Difference between e-r modeling and dimentional modeling?
what is parallel query?
What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?
Define Data Warehousing?
Do you always need to copy the data before reporting on it?(Example, real-time & on-demand reporting is a requirement)?
How would you write a simple stored procedure in tsql which takes a movie_id and returns all the directors associated with it?
What are Non-additive facts?
Explain multivalued dependency?