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I applied via Campus Placement and was interviewed before Dec 2023. There were 3 interview rounds.
General Aptitude Questions
I applied via Naukri.com and was interviewed in Jul 2021. There were 6 interview rounds.
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SQL is a language used for managing relational databases, while ADF (Azure Data Factory) is a cloud-based data integration service.
SQL is used to query, insert, update, and delete data in databases.
ADF is used to create data pipelines for moving and transforming data in the cloud.
SQL examples: SELECT * FROM table_name; INSERT INTO table_name (column1, column2) VALUES (value1, value2);
ADF example: Create a pipeline to c...
I applied via Naukri.com and was interviewed in Mar 2020. There were 3 interview rounds.
Java program to reverse a string using StringBuilder class.
Create a StringBuilder object with the given string as parameter.
Use the reverse() method of StringBuilder class to reverse the string.
Convert the StringBuilder object back to string using toString() method.
I applied via Referral and was interviewed before Dec 2020. There were 5 interview rounds.
I applied via Referral and was interviewed in Apr 2020. There were 3 interview rounds.
ETL stands for Extract, Transform, Load. It is used to extract data from various sources, transform it into a consistent format, and load it into a data warehouse for analysis.
Extract: Data is extracted from different sources such as databases, files, or APIs.
Transform: The extracted data is cleaned, filtered, and transformed into a consistent format.
Load: The transformed data is loaded into a data warehouse for analys...
SCD types refer to slowly changing dimensions in data warehousing, used to track historical changes in data over time.
SCD Type 1: Overwrites old data with new data, losing historical information.
SCD Type 2: Keeps multiple versions of the same record, creating new records for each change.
SCD Type 3: Keeps some historical data in the same record, adding new columns for changes.
SCD Type 4: Uses separate tables to store hi...
I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.
A program in Java to reverse a string
Create a char array from the input string
Use two pointers to swap characters from start and end of the array
Repeat until the pointers meet in the middle
I applied via Company Website and was interviewed in Nov 2021. There were 3 interview rounds.
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