Business Intelligence Consultant

Business Intelligence Consultant Interview Questions and Answers

Updated 29 May 2021
search-icon

Q1. Write a query to display the duplicate records without using group by.

Ans.

Query to display duplicate records without using group by

  • Use self-join to compare records

  • Select records where the values match but the primary key is different

  • Example: SELECT a.* FROM table a, table b WHERE a.value = b.value AND a.id <> b.id

Q2. What is the difference between stuff() and substring()

Ans.

stuff() replaces a specified number of characters with another string, while substring() extracts a portion of a string.

  • stuff() is used to replace a specified number of characters in a string with another string.

  • substring() is used to extract a portion of a string based on the starting and ending index.

  • stuff() can be used to mask sensitive data in a string, such as credit card numbers.

  • substring() can be used to extract a specific part of a string, such as the first name in a ...read more

Q3. How will you pass db connection string on runtime

Ans.

The connection string can be passed on runtime using various methods.

  • One way is to use a configuration file and read the connection string from it.

  • Another way is to pass the connection string as a parameter to the application.

  • The connection string can also be stored in a database and retrieved at runtime.

  • Using environment variables is also a common method to pass connection strings.

  • Connection strings can be encrypted and stored in a secure location, and then retrieved at runt...read more

Q4. What is the use of ‘for XML’ command

Ans.

The 'FOR XML' command is used in SQL Server to generate XML output from a query result.

  • It allows transforming the result set of a query into XML format.

  • It can be used to generate XML documents for data exchange or integration purposes.

  • The 'FOR XML' command supports different modes like RAW, AUTO, EXPLICIT, and PATH.

  • It can be combined with other SQL Server features like joins, aggregations, and subqueries.

  • Example: SELECT * FROM Customers FOR XML AUTO, ELEMENTS

Are these interview questions helpful?

Q5. End to end architecture explanation and people management.

Ans.

End to end architecture involves designing and implementing a complete solution, while people management involves leading and coordinating a team.

  • End to end architecture involves understanding the entire system and designing a solution that meets all requirements

  • People management involves leading and coordinating a team to ensure successful project delivery

  • Effective communication and collaboration are key to both end to end architecture and people management

  • Examples of end to...read more

Q6. How will you get the data into the BI

Ans.

Data can be extracted from various sources like databases, APIs, flat files, etc. and transformed using ETL tools before loading into BI.

  • Identify data sources and their accessibility

  • Choose appropriate ETL tool for data extraction and transformation

  • Design data model and schema for BI

  • Load data into BI using ETL tool

  • Validate and verify data accuracy and completeness

Share interview questions and help millions of jobseekers 🌟

man-with-laptop

Q7. How can you do query optimization?

Ans.

Query optimization can be done by analyzing query execution plans, indexing, partitioning, and rewriting queries.

  • Analyze query execution plans to identify bottlenecks and optimize them

  • Create indexes on frequently queried columns to improve performance

  • Partition large tables to distribute data and improve query performance

  • Rewrite queries to use efficient join and filter conditions

  • Use query hints to force specific execution plans

  • Avoid using SELECT * and instead specify only requ...read more

Q8. Explain the transaction property in SSIS

Ans.

Transaction property in SSIS ensures all tasks in a package are completed or rolled back as a single unit.

  • Transaction property is used to ensure data consistency in a package

  • If a task fails, all previous tasks are rolled back

  • If all tasks complete successfully, they are committed as a single unit

  • Transaction property can be set at package or container level

  • Supported isolation levels are Serializable, Repeatable Read, Read Committed, and Read Uncommitted

Business Intelligence Consultant Jobs

Consultant - Business Intelligence 4-8 years
Verizon Data Services India Pvt.Ltd
4.1
Hyderabad / Secunderabad
Business Intelligence Consultant - Power BI (3-5 yrs) 3-5 years
Icon Resources &Technologies
4.4
Intech Systems - Technical Consultant - Business Intelligence (4-6 yrs) 4-6 years
Intech Systems
3.8
Interview Tips & Stories
Ace your next interview with expert advice and inspiring stories

Interview experiences of popular companies

3.8
 • 8.1k Interviews
3.7
 • 4.7k Interviews
3.5
 • 3.8k Interviews
3.8
 • 3.1k Interviews
4.1
 • 28 Interviews
4.3
 • 17 Interviews
View all

Calculate your in-hand salary

Confused about how your in-hand salary is calculated? Enter your annual salary (CTC) and get your in-hand salary

Business Intelligence Consultant Interview Questions
Share an Interview
Stay ahead in your career. Get AmbitionBox app
qr-code
Helping over 1 Crore job seekers every month in choosing their right fit company
65 L+

Reviews

4 L+

Interviews

4 Cr+

Salaries

1 Cr+

Users/Month

Contribute to help millions

Made with ❤️ in India. Trademarks belong to their respective owners. All rights reserved © 2024 Info Edge (India) Ltd.

Follow us
  • Youtube
  • Instagram
  • LinkedIn
  • Facebook
  • Twitter