Correct Answer: The primary keys of entity tables are the foreign keys of dimension tables The Primary keys of fact dimensional table are the foreign keys of fact tablels
Correct Answer: - A tool for designing Extraction, Transformation and Loading - An ideal tool for data integration projects system migrations - Importing, extracting and creating metadata are within these jobs - Data stage allows scheduling, monitoring and running the jobs - Allows to administer the development and execution in a single environment
Correct Answer: -Daily loading is known as incremental load -When data is selected from source, selected records are loaded between timestamp of last load and the current time -The parameter that are passed to perform are last loaded date and current date -The first parameter is the stored last run date is read through job parameters -The second parameter is the current date
7. What is the difference between operational data stage (ODS) and data warehouse?
Correct Answer: Data warehouse - It is a decision support database system for the purpose of organizational needs -It is non volatile, integrated and time variant collection of data Operational Data Stage - It is an integrated collection of information -It can contain 90 days of information at maximum -ODS supports dynamic data
8. Which of the following is not a function of a Warehouse?
Correct Answer: ActiveX DLL: It is an in process server It runs within the application time ActiveX Exe: It is an out of process server MS-Excel is an activex exe when u call the excel from the vb application u can in the task manager an excel exe will run, whereas for dll u can't see like that
10. With a heredoc syntax, do I get variable substitution inside the heredoc contents?