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I applied via Approached by Company and was interviewed in Dec 2023. There was 1 interview round.
Intermediate SQL Topics - Window Function, Subquery, Joins
Tables:
registration (userid string, regdate date);
txn(txndate date, userid string, amt int, game string);
1. Write a query to get proportion of users who have played a game within 2 days of registration
2. Find the most money spent on a game for each user
3. Get the list of users who played poker but not ludo
Top trending discussions
I applied via LinkedIn and was interviewed in Dec 2024. There were 2 interview rounds.
Based on my CV, they assigned me a task related to data migration.
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
SQL query to retrieve employee names and their salaries from a table
Use SELECT statement to retrieve data
Specify the columns you want to retrieve (employee names and salaries)
Specify the table name where the data is stored
VLOOKUP is a function in Excel used to search for a value in a table and return a corresponding value.
VLOOKUP searches for a value in the first column of a table and returns a value in the same row from a specified column.
The formula syntax is =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]).
Example: =VLOOKUP(A2, B2:D10, 3, FALSE) will search for the value in cell A2 in the range B2:D10 and return the...
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 2 interview rounds.
MYSQL window functions allow for calculations across rows in a result set.
Window functions are used to perform calculations across rows in a result set
They are used with the OVER() clause
Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), and NTILE()
They can be used to calculate running totals, moving averages, and more
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
Estimate the number of users on the application based on market research, user demographics, and industry trends.
Consider the total addressable market (TAM) for the application
Analyze user demographics and behavior to estimate adoption rate
Look at industry benchmarks and competitor data for reference
Use surveys, focus groups, and user feedback to gather insights
Consider factors like market saturation, growth potential,
I applied via Recruitment Consulltant and was interviewed before Jan 2022. There were 4 interview rounds.
Coding skills in Python, Spark/Scala are a must.
Python, Spark, Scala, Terraform
I applied via Job Fair and was interviewed in May 2024. There were 2 interview rounds.
I applied via Approached by Company and was interviewed in Jul 2023. There were 3 interview rounds.
Cultural discussion and briefing on job description
SQL logic test and pipeline design
I applied via Naukri.com and was interviewed in Aug 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.
Spark is a distributed computing framework that provides an interface for programming entire clusters with implicit data parallelism and fault tolerance.
Spark is designed for speed and ease of use in data processing.
It can run programs up to 100x faster than Hadoop MapReduce in memory, or 10x faster on disk.
Spark provides high-level APIs in Java, Scala, Python, and R.
It supports a wide range of data processing tasks, i...
Intermediate level Python and SQL question
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