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I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
Triggers are special stored procedures in databases that are automatically executed or fired when certain events occur.
Triggers are used to maintain data integrity by enforcing business rules or automating actions.
They can be set to execute before or after an INSERT, UPDATE, or DELETE operation on a table.
Examples of triggers include auditing changes to a table, updating a related table when a record is inserted, or en
No, primary keys should not be deleted as they uniquely identify each record in a database.
Primary keys are essential for maintaining data integrity and ensuring uniqueness of records.
Deleting a primary key can lead to data inconsistencies and errors in the database.
If a primary key needs to be changed, it is better to update it rather than delete it.
Drop means to remove a database object, while delete means to remove data from a table.
Drop is used to remove an entire database object like a table, view, or database itself.
Delete is used to remove specific rows of data from a table.
Drop operation is irreversible and can lead to loss of data, while delete operation can be rolled back if within a transaction.
Example: DROP TABLE employees; DELETE FROM employees WHERE a
I applied via -----/ and was interviewed before Sep 2021. There were 4 interview rounds.
Quantitative Aptitude, Logical Reasoning,English grammar
Pseudo code & Coding questions from Array
I want to join your company because of its reputation for innovation and the opportunity to work on cutting-edge software projects.
Your company has a strong reputation for innovation in the software industry.
I am impressed by the projects your company has worked on, such as [example project].
I believe joining your company will provide me with the opportunity to work on cutting-edge software development.
I am excited abo...
I came to know about your company through a job search website.
I found your company listed on a job search website.
I saw a job posting for your company on LinkedIn.
A friend recommended your company to me.
Top trending discussions
I applied via Referral and was interviewed before Apr 2020. There were 3 interview rounds.
I applied via Walk-in and was interviewed before Sep 2020. There were 4 interview rounds.
I appeared for an interview before Jul 2020.
Yes, Infosys is listed on the Indian stock exchanges as well as on the NYSE.
Infosys is listed on the Bombay Stock Exchange (BSE) and National Stock Exchange of India (NSE)
It is also listed on the New York Stock Exchange (NYSE)
Infosys has a market capitalization of over $80 billion as of 2021
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Sep 2019. There were 5 interview rounds.
OOPs concepts in Java are the fundamental principles of object-oriented programming.
Encapsulation: wrapping data and code into a single unit
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent multiple types
Abstraction: hiding implementation details from the user
Examples: class, object, inheritance, polymorphism, encapsulation
Stack is a LIFO data structure while Queue is a FIFO data structure.
Stack follows Last In First Out (LIFO) principle while Queue follows First In First Out (FIFO) principle.
Stack has two main operations: push and pop while Queue has two main operations: enqueue and dequeue.
Stack is used in recursive function calls, undo/redo operations, and backtracking while Queue is used in breadth-first search, printing tasks in ord...
SQL query to find second highest salary in database
Use ORDER BY and LIMIT to get the second highest salary
Assume ties are allowed and use DISTINCT
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading is done within the same class while method overriding is done in different classes (subclass and superclass).
Method overloading is achieved by changing the number of parameters or the data type of ...
The parent class of all classes in Java is the Object class.
All classes in Java implicitly extend the Object class.
The Object class provides basic methods such as toString(), equals(), and hashCode().
Any class can override these methods to provide custom implementations.
Example: public class MyClass extends Object { ... }
Example: Object obj = new MyClass();
SQL databases are relational and use structured query language, while NoSQL databases are non-relational and use various data models.
SQL databases are based on a fixed schema, while NoSQL databases are schema-less.
SQL databases use tables to store data, while NoSQL databases use various data models like key-value, document, columnar, or graph.
SQL databases are better suited for complex queries and structured data, whil...
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
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