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A table with 3-4 columns is created to store and organize data in a structured manner.
Columns represent different attributes or properties of the data.
Each row in the table represents a unique record or entry.
Columns can have different data types such as text, numbers, dates, etc.
Primary key column can be used to uniquely identify each record.
Foreign key columns can establish relationships between tables.
Example: A tab...
To add a column without using create, you can use the ALTER TABLE statement.
Use the ALTER TABLE statement to add a new column to an existing table
Specify the table name and the new column name, data type, and any other constraints
Example: ALTER TABLE table_name ADD column_name data_type;
Tomcat server is a Java-based web server that is used to serve Java Servlets and JSP pages.
Tomcat is an open-source web server and servlet container
It is used to deploy Java web applications
It supports Java Servlet, JavaServer Pages (JSP), Java Expression Language (EL), and WebSocket technologies
It can be used as a standalone server or integrated with other web servers like Apache
It provides a web management interface
Views are virtual tables that are based on the result of a query. They provide a way to simplify complex queries and restrict access to data.
Views are created by selecting columns from one or more tables and can include joins, filters, and calculations.
Unlike tables, views do not store data physically, but rather retrieve it dynamically from the underlying tables.
Views can be used to present a subset of data to users, ...
Indices are values that point to specific data within a data structure. They are used to access and manipulate data efficiently.
Indices are commonly used in arrays to access specific elements.
They can also be used in databases to improve search performance.
Indices can be created on columns in a table to speed up queries.
In programming, indices are often used in loops to iterate over data structures.
Indices can also be ...
Left outer join is used to combine all rows from the left table with matching rows from the right table.
Use the LEFT JOIN keyword to perform a left outer join
The syntax is: SELECT column_name(s) FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name
If there is no match in the right table, NULL values are returned
Example: SELECT customers.name, orders.order_id FROM customers LEFT JOIN orders ON customer
OOP stands for Object-Oriented Programming, a programming paradigm that focuses on objects and their interactions.
OOP is based on the concept of classes and objects
It emphasizes encapsulation, inheritance, and polymorphism
Examples of OOP languages include Java, C++, and Python
I applied via Naukri.com and was interviewed in Jun 2022. There were 3 interview rounds.
I applied via Naukri.com
Answers to common interview questions for Software Engineer position
Option Strict and Option Explicit are compiler directives in VB.NET
Dispose() is used to release unmanaged resources while Finalize() is used for garbage collection
System.String is immutable while System.StringBuilder is mutable
Delegate is a type that represents a reference to a method
Value types store data directly while reference types store a referen...
posted on 21 Aug 2021
I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.
posted on 19 Sep 2021
I applied via Naukri.com and was interviewed before Sep 2020. There were 6 interview rounds.
posted on 14 Mar 2022
3 coding questions of moderate difficult
posted on 11 Aug 2022
I applied via Campus Placement and was interviewed in Jul 2022. There were 3 interview rounds.
Its was fully coding test using METTL platform in that there is only 1 session we need to attend having 6 questions all are Coding only. We don't need to complete all we can complete any of the question the time given was 1hr 30min in this i try to complete atleast 3 questions
posted on 17 Feb 2023
I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.
It had 2 programming questions and 30 aptitude questions
it
I am familiar with several programming languages including Java, Python, and C++.
Proficient in Java and Python
Familiar with C++ and JavaScript
Experience with SQL and HTML/CSS
Comfortable with object-oriented programming and data structures
Continuously learning and exploring new languages and technologies
posted on 20 May 2023
I applied via Recruitment Consulltant and was interviewed in Nov 2022. There were 4 interview rounds.
Six coding questions to be solved within an hour. The coding questions were standard aptitude based and did not include any complex topics like Dynamic Programming or trees in my case.
posted on 29 Apr 2024
I applied via Referral and was interviewed before Apr 2023. There were 2 interview rounds.
Online coding test having basic problems and some aptitude problem.
OOPs stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
OOPs focuses on creating objects that contain both data and methods to manipulate that data.
Encapsulation, inheritance, polymorphism, and abstraction are key principles of OOPs.
Examples of OOPs languages include Java, C++, and Python.
A singleton class is a class that can only have one instance created and provides a global point of access to that instance.
Singleton classes are often used for logging, caching, database connections, and thread pools.
They typically have a private constructor to prevent instantiation from other classes.
They provide a static method to access the single instance, which is created if it doesn't exist yet.
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