Why null values are mapped as 0 in fact tables?
No Answer is Posted For this Question
Be the First to Post Answer
When should you use a STAR and when a SNOW-FLAKE schema?
What is critical column?
what is hybrid schema
How can we transform row to column?
Explain can a dimension table contains numeric values?
Theare is a Database In analysis services,How we will specify the fact table.(i.e whether we will create the measure objects for the fact tbl.) or it will reside insde the database.
Explain differences between star and snowflake schemas?
How can Oracle Materialized Views be used to speed up data warehouse queries?
What is a junk dimension? What is the difference between junk dimension and degenerated dimension?
What is data analytics in simple terms?
What is the difference between olap and oltp?
Are facts same as metrics and dimensions same as measures? If not , please tell the difference?