IQVIA Associate Interview Questions and Answers for Experienced

Alter command on table affects views created on the table.

• Views are virtual tables created from one or more tables.

• Alter command on a table can change the structure of the table, which can affect the views created on it.

• If the columns used in the view are altered or dropped, the view will become invalid.

• If the data in the table is changed, the data in the view will also change accordingly.

Data transformations in SSIS include Lookup which retrieves data from a source based on a matching condition.

• Lookup is used to retrieve data from a source based on a matching condition

• It can be used to perform joins between two data sources

• Lookup can be used to update or insert data into a destination based on a match

• Other data transformations in SSIS include sorting, aggregating, and merging data

Drop deletes the table structure and data, truncate deletes only data, and delete deletes specific rows.

• Drop: removes the table and all its data permanently

• Truncate: removes all data from the table but keeps the structure

• Delete: removes specific rows from the table based on a condition

• Drop and truncate cannot be rolled back, but delete can be

• Drop and truncate reset the identity of the table, but delete does not

Truncate resets identity value, delete does not.

• Truncate resets the identity value to the original seed value

• Delete does not change the identity value

• Example: Truncate table resets identity value to 1

• Example: Delete from table does not change identity value

Joins are used to combine data from two or more tables based on a related column. Types include inner, outer, left, right, and cross join.

• Inner join returns only the matching rows from both tables.

• Outer join returns all rows from both tables, with null values for non-matching rows.

• Left join returns all rows from the left table and matching rows from the right table.

• Right join returns all rows from the right table and m...read more

Query to join employees who are all managers using id in the table.

• Use self join to join the table on manager id and employee id

• Filter the result to only include employees who are also managers

• Example: SELECT e1.name, e2.name FROM employees e1 JOIN employees e2 ON e1.id = e2.manager_id WHERE e2.manager_id IS NOT NULL

• Ensure that the table has a manager_id column

ADR stands for Alternative Dispute Resolution. It is a process of resolving disputes outside of the court system.

• ADR includes methods such as mediation, arbitration, and negotiation.

• It is often used as a quicker and less expensive alternative to traditional litigation.

• ADR can be voluntary or mandatory, depending on the situation.

• Examples of ADR include settling a divorce through mediation, resolving a business dispute ...read more

Causality refers to the relationship between an event (the cause) and a second event (the effect), where the second event is a result of the first.

• Causality is the principle that everything has a cause and effect.

• It is the relationship between an action and its consequences.

• For example, smoking causes lung cancer.

• Causality is important in scientific research to establish cause-and-effect relationships.

• It is also import...read more

I'm drawn to this role for its blend of analytical challenges and opportunities to drive impactful decisions.

• The role offers a chance to work on diverse projects, enhancing my problem-solving skills.

• I am excited about collaborating with cross-functional teams, as teamwork fosters innovation.

• The opportunity to analyze data and derive insights aligns with my passion for data-driven decision-making.

• I appreciate the potent...read more

I have experience in customer service and project management, enhancing team collaboration and client satisfaction.

• Worked as a customer service representative, resolving client issues and improving satisfaction scores by 20%.

• Managed a team project that streamlined internal processes, resulting in a 15% increase in efficiency.

• Conducted training sessions for new hires, focusing on best practices in customer interaction a...read more

I am looking for a competitive salary that reflects my skills and experience, ideally in the range of $X to $Y.

• Research industry standards: For example, according to Glassdoor, the average salary for this role is $X.

• Consider my experience: With X years in the field, I believe a salary of $Y is appropriate.

• Be open to negotiation: I am flexible and willing to discuss a compensation package that includes benefits.