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I applied via Walk-in and was interviewed in May 2022. There was 1 interview round.
Join is used to combine rows from two or more tables based on a related column between them.
Join is used to retrieve data from multiple tables.
Syntax: SELECT column_name(s) FROM table1 JOIN table2 ON table1.column_name = table2.column_name;
Types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, CROSS JOIN.
Example: SELECT customers.name, orders.order_date FROM customers JOIN orders ON customers.customer_id =
Constrain is a rule that restricts the values in a database column. DDL is a set of SQL commands used to create, modify, and delete database objects.
Constrains ensure data integrity and prevent invalid data from being inserted into a database.
DDL includes commands like CREATE, ALTER, and DROP to manage database objects like tables, indexes, and views.
Constrains are defined using DDL commands like CHECK, UNIQUE, and FOR...
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I applied via Walk-in and was interviewed in May 2022. There was 1 interview round.
OOPs concepts are the principles of Object-Oriented Programming. Class is a blueprint for creating objects. Interface is a contract.
OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.
Class is a template for creating objects that defines its properties and methods.
Interface is a contract that defines a set of methods that a class must implement.
Inheritance allows a class to inherit propertie...
posted on 1 Dec 2024
Coding questions codility hacker ranl
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2020. There was 1 interview round.
Java is platform independent due to its bytecode and JVM.
Java code is compiled into bytecode which is platform-independent.
JVM (Java Virtual Machine) interprets the bytecode and executes it on any platform.
JVM acts as an abstraction layer between the Java code and the underlying hardware.
This allows Java programs to run on any platform that has a JVM installed.
For example, a Java program written on a Windows machine ca...
I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed before Oct 2020. There was 1 interview round.
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