What is oops? What is polymorphism? and types. What is Abstraction ? explain SDLC? What is DBMS? diff b/w truncate, delete and drop. What is Join? types And general HR questions

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OOPs stands for Object-Oriented Programming which is a programming paradigm based on the concept of objects
Polymorphism is the ability of an object to take on many forms. There are two types of polymorphism: compile-time and runtime
Abstraction is the process of hiding implementation details while showing only the necessary information to the user
SDLC stands for Software Development Life Cycle which is a process used to design, develop, and test software
DBMS stands for Database Management System which is a software system used to manage and organize data
Truncate is used to delete all the data from a table while keeping the structure intact, Delete is used to delete specific rows from a table, and Drop is used to delete an entire table
Join is used to combine rows from two or more tables based on a related column between them. There are four types of joins: Inner Join, Left Join, Right Join, and Full Outer Join

Accepted Answer

Polymorphism is a feature of object-oriented programming languages that allows a specific routine to use variables of different types at different times. Abstraction allows a programmer to design software better by thinking in general terms rather than specific terms while Polymorphism allows a programmer to defer choosing the code you want to execute at runtime. The software development lifecycle (SDLC) is the cost-effective and time-efficient process that development teams use to design and build high-quality software. The goal of SDLC is to minimize project risks through forward planning so that software meets customer expectations during production and beyond. This methodology outlines a series of steps that divide the software development process into tasks you can assign, complete, and measure.Database Management Systems (DBMS) are software systems used to store, retrieve, and run queries on data. The DELETE command deletes one or more existing records from the table in the database. The DROP Command drops the complete table from the database. The TRUNCATE Command deletes all the rows from the existing table, leaving the row with the column names.Don't be afraid to ask HR what this job looked like before you were interested in it. This can include what the responsibilities looked like, how many other people currently hold this position at the company, and even where HR thinks it's going in the future.

What is oops? What is polymorphism? and types. What is Abstraction ? explain SDLC? What is DBMS? diff b/w truncate, delete and drop. What is Join? types And general HR questions

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