Levtech Consulting Services Technical Consultant Interview Questions and Answers

Oops concepts in Java refer to Object-Oriented Programming principles such as Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementatio...read more

To select 100 lines in a table in SQL, we can use the LIMIT clause.

• Use the LIMIT clause in SQL to specify the number of rows to return.

• The syntax is: SELECT * FROM table_name LIMIT 100;

• You can also use OFFSET to skip a certain number of rows before starting to return rows, for example: SELECT * FROM table_name LIMIT 100 OFFSET 50;