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AST Corporation
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I applied via Campus Placement and was interviewed before Apr 2023. There were 4 interview rounds.
GD checking the communication
I applied via Campus Placement and was interviewed before Feb 2023. There was 1 interview round.
posted on 17 Sep 2022
I applied via Naukri.com and was interviewed before Sep 2021. There was 1 interview round.
I applied via Referral and was interviewed before May 2023. There were 3 interview rounds.
There were 3 rounds for data science consultant position at Equifax. 1st round consists of Python and SQL questions and also in this round they have tested analytical thinking as well.
In 2nd round they have asked me questions from my resume and asked me to explain the projects which I have worked on in previous company. In this round they have asked me pandas related questions and asked me write code.
On python and sql coding.they ask simple to complex questions
I applied via Naukri.com and was interviewed before Mar 2023. There was 1 interview round.
I applied via Campus Placement and was interviewed in Feb 2023. There were 2 interview rounds.
Tuples are immutable sequences of elements. A string can be converted to a tuple using the tuple() function.
Tuples are similar to lists but are immutable
Elements of a tuple are enclosed in parentheses ()
A string can be converted to a tuple using the tuple() function
Each character in the string becomes an element in the tuple
Left join is a type of join operation in SQL that returns all the rows from the left table and matching rows from the right table.
Left join is performed using the 'left join' keyword in SQL
In Python, left join can be performed using the 'merge' function from the pandas library
Syntax: pd.merge(left_dataframe, right_dataframe, how='left', on='key_column')
Example: pd.merge(df1, df2, how='left', on='id')
I applied via Referral and was interviewed before Sep 2021. There were 2 interview rounds.
Moderate difficult with business reasoning
I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed before Jul 2021. There were 3 interview rounds.
Data validation in Hive involves using built-in functions and custom scripts to ensure data accuracy and consistency.
Use built-in functions like IS NULL, IS NOT NULL, and COALESCE to check for missing or null values
Use regular expressions and pattern matching to validate data formats
Write custom scripts to perform more complex data validation tasks
Perform data profiling to identify potential data quality issues
Use data...
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Saama Technologies
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Data-Core Systems
Arvato