Dibber Interview Questions and Answers

Project flow involves understanding the sequence of tasks in a project. Exceptions are handled using try-catch blocks.

• Project flow involves defining the sequence of tasks from start to finish.

• Exceptions are handled using try-catch blocks to catch and handle errors gracefully.

• Logging and alerting mechanisms are implemented to track and notify about exceptions.

• Unit tests are written to cover different scenarios and ensure proper exception handling.

• Regular code reviews and debug...read more

Factory pattern is used to create objects without exposing the instantiation logic to the client, while Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern is used to create objects based on a common interface, without specifying the exact class of the object being created.

• Singleton pattern restricts the instantiation of a class to one object, ensuring that all requests for the object return the same instance.

• Fac...read more

Program to reverse a string without using predefined methods

• Create an empty string to store the reversed string

• Iterate through the input string from end to start and append each character to the new string

• Return the reversed string as the output

Different types of joins in SQL include inner join, outer join, left join, right join, and full join.

• Inner join: Returns rows when there is at least one match in both tables

• Outer join: Returns all rows when there is a match in one of the tables

• Left join: Returns all rows from the left table and the matched rows from the right table

• Right join: Returns all rows from the right table and the matched rows from the left table

• Full join: Returns rows when there is a match in one of t...read more

Functions are used to perform specific tasks and return a value, while stored procedures are used to perform a series of actions.

• Functions return a single value, while stored procedures can return multiple values or none at all.

• Functions are called in SQL statements, while stored procedures are called using their name.

• Functions cannot modify the database state, while stored procedures can.

• Functions are easier to test and debug, while stored procedures are more flexible and ca...read more

Synonyms in SQL Server are alternate names for database objects like tables, views, stored procedures, etc.

• Synonyms provide a way to simplify queries by providing a single name for an object that may have a long or complex name.

• They can be used to reference objects in a different schema or database without changing the code.

• Synonyms can be created using the CREATE SYNONYM statement and dropped using the DROP SYNONYM statement.