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  Roll-Up Summary Fields   A roll-up summary field calculates values from related records, such as those in a related list. You can create a roll-up summary field to display a value in a master record based on the values of fields in a detail record. The detail record must be related to the master through a master-detail relationship. For example, you want to display the sum of invoice amounts for all related invoice custom object records in an account’s Invoices related list. You can display this total in a custom account field called Total Invoice Amount. Steps to Create a Roll-Up Summary Field: Create a custom field on the object where you want the field displayed. Summary fields summarize the values from records on a related object, so the object on which you create the field should be on the master side of a master-detail relationship. For instructions on creating a custom field, see Create Custom Fields. Choose the Roll-Up Summary field type, and click Next. Enter a fiel...

What is Salesforce Object Query Language (SOQL) in APEX ? SOQL means Salesforce Object Query Language which is to query the records from the database.com based on the requirement.  Apex has direct access to Salesforce records that are stored in the database, you can embed SOQL queries in your Apex code and get results in a straightforward fashion. When SOQL is embedded in Apex, it is referred to as inline SOQL. To include SOQL queries within your Apex code, wrap the SOQL statement within square brackets and assign the return value to an array of sObjects. For example, the following retrieves all account records with two fields, Name and Phone, and returns an array of Account sObjects. Use SOQL when you know which objects the data resides in, and you want to: Retrieve data from a single object or from multiple objects that are related to one another. Count the number of records that meet specified criteria. Sort results as part of the query. Retrieve data from number, date, or che...

Workflow Rule in Salesforce :     Workflow rules is an automation tool in Salesforce that offers time-saving solutions for making different internal processes of a company switch from manual work and for optimizing various procedures. Workflow in Salesforce is basically a container or business logic engine which automates certain actions based on particular criteria. If the criteria are met, the actions get executed. When they are not met, records will get saved but no action will get executed. Components of Workflow in Salesforce: Workflow rules in Salesforce can be broken down into two main components: Criteria : Criteria are conditions you are supposed to put in order to test a record. For example, if you’re from a technical background, what the if statement does in an if/then the condition is what criteria mean in a workflow. Actions : Actions occur after a record meets the criteria. Again, what the then statement does in the if/then the condition is what an action means i...

Visualforce Pages in Salesforce   Introduction to Creating Visualforce Pages: Visualforce pages are basic building blocks for application developers. A Visualforce page is similar to a standard Web page, but includes powerful features to access, display, and update your organization’s data. Pages can be referenced and invoked via a unique URL, just as they would be on a traditional web server. Visualforce uses a tag-based markup language that’s similar to HTML. Each Visualforce tag corresponds to a coarse or fine-grained user interface component, such as a section of a page, a list view, or an individual field. Visualforce boasts nearly 150 built-in components, and provides a way for developers to create their own components. Visualforce markup can be freely mixed with HTML markup, CSS styles, and JavaScript libraries, giving you considerable flexibility in how you implement your app’s user interface. What is a Controller in Salesforce? Controller in Salesforce is an Apex clas...