SQL Table with the columns: UserID, TransactionID, DepartmentID, TransactionDate, UserName, DepartmentName 1. Do not remember the question. 2. For each department , show the users who make at least 3 transactions 3. For each department, select the user with the most Transaction (the result should contain the following fields: DepartmentName, UserName, number of interactions) 4. Difference between RowNumber and Rank Business question: Conversion ratio: x / (y + z) x = sales y = searches z = Searches in Alexa Given: The conversion rate increased, and the number of searches in Alexa (z) decreased. Question: Should I remove the Alexa search function? Answer: Not necessarily - need to check if y dropped more than z
Business Intelligence Analyst Interviews
Business Intelligence Analyst Interview Questions
"Business intelligence analysts use their analysis of market trends and internal data to recommend where a business can improve profits and reduce expenses. Prepare for your interview by brushing up on your financial math and SQL skills, as well as your knowledge of the company's competitive space. A few years of experience and a degree in business, finance, or computer science is required for this position."
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Q: Difference between UNION and UNION ALL
Why you want to join Amazon?
Technical SQL questions like joins (How would you use them and a specific query structure for a simple use case) how many rows might this query return if we are using a particular join
1. what are views? 2. SQL query using Group by and aggregations 3. cartesian product conceptual questions
SQL and behavioral questions
Questions regarding ranking and metrics.
What is t-test
Why Amazon?
Tell me about a time you had to overcome pushback from your Manager
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