Basic SQL Interview Questions for Freshers 1. What is the difference between a primary key and a unique key? Primary Key: The primary key is used to uniquely identify every record in a table. It ensures that NULL values are not present in the table. Unique Key: Unique key also identifie...
SQL or Structured Query Language is the main query language of PostgreSQL. 13. What do you think is the latest PostgreSQL version in the market? As of 2022, the latest version of PostgreSQL in the market is PostgreSQL 15. It was launched on 13 October, 2022. 14. What is the full form...
SQL stands for the Structured Query Language. It is the standard language used to maintain the relational database and perform many different data manipulation operations on the data. SQL was initially invented in 1970. It is a database language used for database creation, deletion, fetching and...
System Design Interview Questions for Freshers 1. What is CAP theorem? 2. How is Horizontal scaling different from Vertical scaling? 3. What do you understand by load balancing? Why is it important in system design? 4. What do you understand by Latency, throughput, and availability of a ...
When you face your first job interview, you are more concerned about your first year of the job and planning for such a long time seems formidable to many freshers. The interviewer asks this question mainly to see your willingness to stay longer with the company. The second reason may be ...
Oracle interview questions for freshers are the typical questions that are asked in all companies. Here are some of them: 1) What do you know about our company? This question is generally asked by the interviewer or hiring manager at the beginning of the conversation to know how much you ar...
Java Interview Questions for Freshers 1. Why is Java a platform independent language? Java language was developed so that it does not depend on any hardware or software because the compiler compiles the code and then converts it to platform-independent byte code which can be run on multiple ...
TCS NQT Technical Interview Questions for Freshers 1. Name the four pillars of OOP. The four pillars of object-oriented programming (OOP) are listed below Inheritance Encapsulation Polymorphism Abstraction 2. What are the three different sorts of variables in Java?
Some of the most popular RDBMS software are SQL Server, Oracle, PostgreSQL, SQLite, ThinkSQL, Cubrid.Reviewed and verified by Best Interview Question Best Interview Question With our 10+ experience in PHP, MySQL, React, Python & more our technical consulting firm has received the privilege of...
While preparing for the Python interview questions and answers for freshers, ensure to add this question to your list.A model in Django is a definite source of data information, as defined in “app/models.py.“Models operate as an abstraction layer, structuring and manipulating data. Django ...