KPMG India fresher Interview Questions and Answers

Q1. Sql constrainsts, star schema, dml dcl commands
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Q2. About cureent project and responsibilities
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Q1. Current projects and resposibilities
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Q2. Where vs having, reason for job change
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Q1. Sql order of execution
Ans. 
SQL order of execution determines the sequence in which different clauses are processed in a query.
• SQL query is parsed and validated first

• Next, the query optimizer creates an execution plan

• Execution plan includes steps like table scans, index scans, joins, etc.

• Finally, the query is executed and results are returned
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Q2. Sql question on finding highest salary for each employee where employees and department table are given in each department.
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Q1. Project related discussions
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Q2. Meduim level SQl and DSA
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Q1. This was data modelling round
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Q2. Design a uber data model
Ans. 
Uber data model design for efficient storage and retrieval of ride-related information.
• Create tables for users, drivers, rides, payments, and ratings

• Include attributes like user_id, driver_id, ride_id, payment_id, rating_id, timestamp, location, fare, etc.

• Establish relationships between tables using foreign keys

• Implement indexing for faster query performance
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Q1. Project explaining
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Q2. Write code to generate csv file with note pad data
Ans. 
Code to generate a CSV file with notepad data
• Open a text file and read the data

• Parse the data and write it to a CSV file

• Use libraries like pandas in Python for easier CSV handling
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Maxium sub string and reverse a string

Q1. Data warehouse concepts
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