NielsenIQ Research Analyst Interview Questions, Process, and Tips for Experienced

Q1. What is stored procdedure?
Ans. 
Stored procedure is a precompiled collection of SQL statements that can be executed by calling the procedure name.
• Stored procedures are used to encapsulate and group SQL code for reuse and performance optimization.

• They can accept input parameters and return output parameters.

• Stored procedures can be called from applications or other stored procedures.

• They are stored in the database and can be executed multiple times wi
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Q2. What are the joins
Ans. 
Joins are used in databases to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from th...read more
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Multiple choice with quantitative and verbal section

Two groups were created with 1 topic thrown at each group and 1 minute to prepare

Q1. What are the types of methodologies
Ans. 
Types of methodologies include qualitative, quantitative, mixed methods, and action research.
• Qualitative methodology focuses on understanding human behavior and experiences through methods like interviews and observations.

• Quantitative methodology involves collecting numerical data and analyzing it statistically.

• Mixed methods combine qualitative and quantitative approaches to provide a comprehensive understanding of a r...read more
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Q2. What is primary research
Ans. 
Primary research involves collecting data directly from original sources.
• Involves collecting data directly from original sources

• Can include surveys, interviews, observations, and experiments

• Helps in obtaining specific and targeted information

• Often more time-consuming and expensive compared to secondary research
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Not very hard. Speed test

Q1. Case study for data interpretation
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