Question
Indexes are optional structures associated with tables or clusters, and exploiting indexes to reduce scanning of data is of crucial importance a) Describe the role
Indexes are optional structures associated with tables or clusters, and exploiting indexes to reduce scanning of data is of crucial importance
a) Describe the role of indexing in data warehousing,
b) Explain different types of indexing methods that are used in data warehousing
c) State the advantages and disadvantages of each method.
d) Provide an example for each indexing methods
e) Discuss an indexing method that you would recommend if you were a data warehouse designer.
2) What does the term Slowly Changing Dimension (SCD) mean in data warehousing. With an example, briefly describe different types of SCD and its importance in data warehousing and state their advantages and disadvantages of different types.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started