Question

In the context of data loading, what is the primary difference between an "append" and a "load" operation?

a.

Append adds incoming data while preserving existing data, while load replaces existing data with incoming data.

b.

Append and load are essentially the same operation with no difference.

c.

Append wipes out existing data and applies incoming data, while load handles duplicates during the process.

d.

Append applies incoming data to an empty table, while load applies incoming data to a table with existing data.

Posted under Data Warehousing and OLAP

Answer: (a).Append adds incoming data while preserving existing data, while load replaces existing data with incoming data. Explanation:The primary difference between an "append" and a "load" operation is that append adds incoming data while preserving existing data, whereas load replaces existing data with incoming data.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. In the context of data loading, what is the primary difference between an "append" and a "load" operation?

Add Comment

Similar Questions

Discover Related MCQs

Q. What happens during a "destructive merge" when the primary key of an incoming record matches the key of an existing record?

View solution

Q. How is "constructive merge" different from "destructive merge" in data loading?

View solution

Q. Which mode of applying data is used when the target table is already empty before loading?

View solution

Q. In which scenario during the initial load of a data warehouse table is the "load" mode typically used?

View solution

Q. What mode is appropriate for preserving the periodic nature of changes in incremental loads of a data warehouse?

View solution

Q. In which scenario is the "destructive merge" mode applicable when applying data to a data warehouse table?

View solution

Q. How are full refreshes different from initial loads in terms of data application modes?

View solution

Q. What are the two methods for maintaining a data warehouse and keeping it up to date after the initial load?

View solution

Q. When might a full refresh be a better option than an update for keeping a data warehouse up to date?

View solution

Q. What is the primary reason for converting production system keys to system-generated keys in the data warehouse?

View solution

Q. What is the key of the fact table in a data warehouse based on?

View solution

Q. What is the primary function of ETL (Extraction, Transformation, and Loading) in a data warehouse?

View solution

Q. Why is data extraction for a data warehouse an ongoing function carried out at very frequent intervals?

View solution

Q. What is the key difference between data loading in a data warehouse and data loading for a new operational system?

View solution

Q. What role do vendor tools play in the ETL process for data warehousing?

View solution

Q. What are the three main components of the ETL process?

View solution

Q. Why is data transformation in a data warehouse more complex than conversion functions for operational systems?

View solution

Q. When might a full refresh be used for data loading in a data warehouse?

View solution

Q. Why is ongoing data extraction required in a data warehouse?

View solution

Q. What is the primary role of data transformation in a data warehouse?

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!

Compiler Design

Unravel the process of translating source code into executable programs with our...

C Programming

Master one of the most widely used programming languages with our C Programming MCQs....

SQL Server

Master Microsoft's database server with our SQL Server MCQs. Topics cover database...

Software Engineering

Learn about the systematic approach to developing software with our Software...

IT Fundamentals

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

Internet of Things (IoT)

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

MATLAB

Hone your computational mathematics skills with our MATLAB MCQs. Understand...

Object Oriented Programming Using C++

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

MySQL Database

Enhance your knowledge of relational databases with our MySQL MCQs. Understand...