Infosys Interview Questions, Process, and Tips for Experienced

A trigger is a special kind of stored procedure that is automatically executed when certain events occur in a database.

• Triggers can be used to enforce business rules, maintain referential integrity, and automate repetitive tasks.

• Examples of trigger events include INSERT, UPDATE, and DELETE operations on a table.

• Triggers can be defined to execute before or after the triggering event.

• They are commonly used in database ma...read more

Flows are sequences of steps that represent a process or workflow. There are different types of flows based on their purpose and structure.

• Flows are used to represent the sequence of steps in a process or workflow.

• Types of flows include linear flows, branching flows, and looping flows.

• Linear flows follow a single path from start to finish.

• Branching flows have multiple paths based on conditions or decisions.

• Looping flow...read more

Batch class is a Salesforce feature used to process large amounts of data in chunks.

• Batch class implements the Database.Batchable interface in Salesforce

• It allows you to break down a large data set into smaller batches for processing

• Batch class is useful for handling large data volumes without hitting governor limits

• Example: A batch class can be used to update all account records with a specific field value

A trigger on account to perform actions on record insert, update, or delete

• Triggers are used to perform actions before or after records are inserted, updated, or deleted

• Triggers can be written in Apex language

• Example: Trigger to update a related object when an account is inserted

Future and queable are terms related to asynchronous programming and task scheduling.

• Future refers to a result that is not immediately available but will be at some point in the future.

• Queable refers to tasks that can be added to a queue and executed in a specific order or based on certain conditions.

• Examples: Future in Java's CompletableFuture, Queable tasks in Python's Celery.

A singleton class is a class that allows only one instance of itself to be created and provides a global point of access to that instance.

• Singleton classes are often used in Spring Boot for managing resources such as database connections or thread pools.

• In Spring Boot, singleton beans are created by default, meaning that only one instance of a bean is created and shared across the application.

• To create a singleton bean...read more