Question

What is STARjoin, and how does it contribute to query performance in the STAR schema?

a.

STARjoin is an indexing method for dimension tables in the STAR schema.

b.

STARjoin is a technique to join more than two fact tables in a single operation.

c.

STARjoin is a method for creating specialized indexes in the STAR schema.

d.

STARjoin is a high-speed, single-pass, parallelizable, multitable join in the STAR schema.

Posted under Data Warehousing and OLAP

Answer: (d).STARjoin is a high-speed, single-pass, parallelizable, multitable join in the STAR schema. Explanation:STARjoin is a high-speed, single-pass, parallelizable, multitable join in the STAR schema, which significantly improves query performance.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What is STARjoin, and how does it contribute to query performance in the STAR schema?

Add Comment

Similar Questions

Discover Related MCQs

Q. How does the STAR schema facilitate drill-down and roll-up in data warehouse queries?

View solution

Q. In a three-dimensional query using the STAR schema, what is the typical sequence of operations to obtain the final result?

View solution

Q. Why is the STAR schema considered most suitable for query processing in a data warehouse?

View solution

Q. In the context of a STAR schema, what happens when you have a seemingly complex query to resolve a specific problem?

View solution

Q. How does the STAR schema optimize navigation in the database?

View solution

Q. Why is the STAR schema considered to be intuitively understood by users?

View solution

Q. How does the STAR schema differ from the relational schema of an OLTP system in terms of user-friendliness?

View solution

Q. In a data warehouse, what distinguishes users of decision support systems, such as data warehouses, from users of OLTP systems?

View solution

Q. In the context of a STAR schema, what does "denormalized" refer to?

View solution

Q. What is one of the key advantages of the STAR schema for data warehousing?

View solution

Q. When might a denormalized dimension table not be desirable in a STAR schema?

View solution

Q. What is the fundamental difference between the STAR schema and relational schemas for OLTP systems?

View solution

Q. Which option is commonly used for defining primary keys in a STAR schema fact table?

View solution

Q. In a STAR schema, why must the primary key of each dimension table also be a foreign key in the fact table?

View solution

Q. Why do dimension tables often use surrogate keys?

View solution

Q. How are operational system keys typically handled in dimension tables when surrogate keys are used?

View solution

Q. What are surrogate keys in dimension tables?

View solution

Q. What is the first principle to consider when choosing primary keys for dimension tables?

View solution

Q. What issues can arise when using operational system keys as primary keys for dimension tables?

View solution

Q. In a dimension table, what is the primary key used for?

View solution

View All MCQs on Data Warehousing and OLAP

Suggested Topics

Are you eager to expand your knowledge beyond Data Warehousing and OLAP? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Object Oriented Programming Using C++

Enhance your programming skills with our MCQs on Object Oriented Programming using...

Data Warehousing and OLAP

Strengthen your knowledge of Data Warehousing and OLAP with our specialized MCQs....

Computer Architecture

Unveil the science behind computer design with our Computer Architecture MCQs. Topics...

Internet of Things (IoT)

Discover how devices communicate with each other in the smart world with our IoT...

Neural Networks

Dive into the world of Artificial Intelligence with our Neural Networks MCQs. Uncover...

Software Architecture and Design

Get a strong hold on the blueprint of software systems with our Software Architecture...

IT Fundamentals

Navigate the basics of information technology with our IT Fundamentals MCQs. Get a...

Wireless and Mobile Communications

Get to grips with modern communication technologies with our Wireless and Mobile...

Systems Programming

Decode low-level programming with our Systems Programming MCQs. These questions delve...