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I applied via Approached by Company and was interviewed before Jan 2024. There were 2 interview rounds.
Union and Union All are SQL commands used to combine the result sets of two or more SELECT statements.
Union is used to combine the result sets of two or more SELECT statements, removing duplicates.
Union All is used to combine the result sets of two or more SELECT statements, including duplicates.
Union and Union All require that the number of columns in each SELECT statement is the same.
Example: SELECT column1 FROM tabl...
Rank is the position of an element in a sorted list, while dense rank is the position of an element in a sorted list with no gaps between ranks.
Rank assigns unique numbers to each element based on their order in a sorted list.
Dense rank also assigns unique numbers to each element, but without any gaps between ranks.
For example, if we have a list of numbers [10, 20, 20, 30], the rank of 20 would be 2 and the dense rank ...
ETL validations ensure data accuracy, completeness, and consistency during the extraction, transformation, and loading process.
Schema validation to ensure data types and formats are correct
Data completeness checks to verify all expected data is present
Duplicate data detection to prevent redundancy
Referential integrity checks to maintain relationships between tables
Data quality checks to identify anomalies or errors
To find duplicates in an array of strings
Iterate through the array and store each element in a HashSet
If the element is already in the HashSet, it is a duplicate
Alternatively, sort the array and compare adjacent elements for duplicates
I applied via Campus Placement and was interviewed before Jan 2020. There were 4 interview rounds.
I applied via Walk-in and was interviewed before May 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed before Feb 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2020. There was 1 interview round.
Java is platform independent due to its bytecode and JVM.
Java code is compiled into bytecode which is platform-independent.
JVM (Java Virtual Machine) interprets the bytecode and executes it on any platform.
JVM acts as an abstraction layer between the Java code and the underlying hardware.
This allows Java programs to run on any platform that has a JVM installed.
For example, a Java program written on a Windows machine ca...
I applied via Campus Placement and was interviewed before Feb 2020. There was 1 interview round.
I applied via Recruitment Consultant and was interviewed before Aug 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed in Jul 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.
based on 2 interviews
Interview experience
Sales Officer
4
salaries
| ₹3.8 L/yr - ₹7 L/yr |
Accountant
3
salaries
| ₹2.4 L/yr - ₹3 L/yr |
Data Entry Operator
3
salaries
| ₹1.1 L/yr - ₹3 L/yr |
Saregama India
T-Series
Zee Entertainment Enterprises
Sun Pharmaceutical Industries