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I applied via Referral and was interviewed before Jul 2023. There were 2 interview rounds.
Union combines the results of two or more SELECT statements, while Union All includes all rows, including duplicates.
Union removes duplicate rows, Union All includes all rows
Union is slower as it has to remove duplicates, Union All is faster
Union requires the same number of columns in each SELECT statement, Union All does not
Different kinds of joins in SQL are inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is a match in both tables.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the left table.
Full outer join: Returns rows when there is a match in either table.
Case statement in SQL is used to perform conditional logic and return different values based on specified conditions.
Case statement can be used to replace multiple if-else statements in SQL queries.
It can be used in SELECT, WHERE, and ORDER BY clauses.
Syntax: CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE default_result END
Example: SELECT name, CASE WHEN age < 18 THEN 'Minor' ELSE 'Adult' END AS ag
Windows functions in SQL are used to perform calculations across a set of rows related to the current row.
Windows functions are used to calculate cumulative sums, averages, rankings, and more.
Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), SUM() OVER(), AVG() OVER().
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SQL+CODING QUESTIONS
Highly interactive and technical
1 hr test with focus on math and analytical thinking
Aptitude, English and basic programming mcq question were there. Around 70 questions
I applied via Naukri.com and was interviewed before Dec 2023. There were 2 interview rounds.
As a Data Analyst, my roles and responsibilities include analyzing data, creating reports, identifying trends, and providing insights to support decision-making.
Analyzing large datasets to extract meaningful insights
Creating reports and visualizations to communicate findings
Identifying trends and patterns in data
Collaborating with stakeholders to understand business needs
Providing recommendations based on data analysis
...
In the next 4 years, I see myself advancing my skills in data analysis, taking on more responsibilities, and potentially moving into a leadership role.
Continuing to improve my data analysis skills through training and hands-on experience
Taking on more complex projects and responsibilities within the data analysis field
Possibly transitioning into a leadership role where I can mentor and guide junior analysts
Exploring op...
I am a data analyst with a background in statistics and programming, passionate about uncovering insights from data.
Background in statistics and programming
Experience in data analysis and visualization tools like Python, R, and Tableau
Strong problem-solving skills
Ability to communicate complex data findings to non-technical stakeholders
I have 5 years of experience working as a Data Analyst in various industries.
5 years of experience as a Data Analyst
Worked in multiple industries such as finance, healthcare, and technology
Proficient in data analysis tools and techniques
Experience in handling large datasets and generating insights
Strong problem-solving and communication skills
I applied via Campus Placement
Quants guesstimates
Pandas numpy python Java development rshiny
Leetcode easy very very easy 3 sum
I applied via Referral and was interviewed before Mar 2023. There were 3 interview rounds.
Excel test with basic aptitude questions
I applied via Approached by Company and was interviewed in Sep 2021. There were 4 interview rounds.
I worked as a Data Analyst at XYZ Company.
Analyzed large datasets to identify trends and patterns
Created reports and visualizations to present findings to stakeholders
Collaborated with cross-functional teams to gather data requirements
Used SQL and Python for data extraction, transformation, and analysis
Implemented data quality checks and resolved data discrepancies
Developed predictive models to forecast future trends
Co...
Seeking new challenges and growth opportunities in a different organization.
Looking for a more challenging role
Seeking professional growth and development
Interested in exploring new industries or sectors
Want to work in a different organizational culture
Desire to expand skill set and learn new technologies
Seeking better work-life balance or location
Company restructuring or downsizing
I am a data analyst with experience in analyzing and interpreting complex data sets to drive business insights.
Experienced in using statistical analysis tools such as Python, R, and SQL
Proficient in data visualization techniques using tools like Tableau and Power BI
Skilled in data cleaning, data mining, and data manipulation
Strong problem-solving and critical thinking skills
Effective communication and presentation skil...
SQL coding Questions, Excel functions
I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.
Medium level apti and verbal.
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