Swabhav Techlabs Interview Questions and Answers

Q1. Was an good interview which happened around one and half an hour
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Q1. Sql, python, tableau are important topics
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Q2. Prepare windows function in sql
Ans. 
Windows function in SQL is used to perform calculations across a set of rows that are related to the current row.
• Windows functions are used to calculate values based on a group of rows

• They are used with the OVER clause

• Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), SUM(), AVG(), MIN(), MAX()
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Q1. Difference between functions and stored procedure in SQL.
Ans. 
Functions return a single value while stored procedures can perform multiple operations and return multiple values.
• Functions return a single value while stored procedures can return multiple values.

• Functions are used for computations and return values, while stored procedures are used for executing a series of statements.

• Functions can be called from within SQL statements, while stored procedures are called using the EX...read more
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Q2. Difference between abstract class and Interface in C#
Ans. 
Abstract class can have implementation details, while interface only contains method signatures.
• Abstract class can have constructors, fields, and methods with implementation details, while interface can only have method signatures.

• A class can inherit from only one abstract class, but can implement multiple interfaces.

• Abstract classes are used when some common functionality needs to be shared among multiple classes, whi...read more
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