Salesforce Interview Questions

Apex - Variables

In Salesforce, objects are database tables that are used to store the data of an organization. There are two types of objects in Salesforce. They are:

Standard object: These are the objects provided by the Salesforce platform, which includes contacts, accounts, cases, campaigns, opportunities, leads, products, contracts, reports, dashboards, etc.
Custom object: They are objects created by developers based on the business process. It stores the important and unique information of an organization. It gives a structure for data sharing. The custom object includes page layouts, custom fields, relationship to other objects, custom user interface tab, etc.

Apex is a strongly typed and object-oriented programming language that permits developers to execute flow and transaction control statements on Salesforce platform servers in conjunction with calls to the API. It uses syntax that looks similar to Java and pretends like database stored procedures.
Apex allows developers to add business logic to many system events, including Visualforce pages, button clicks, and related record updates. This code can be initiated by requests from web services and from triggers on objects.
All Apex code runs completely on-demand on the Lightning platform. Apex code is written and saved to the platform by developers. Through the user interface, end-users trigger the execution of Apex code.

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