Salesforce is an yank cloud-based software system company headquartered in urban center, California. although the majority of its revenue comes from its customer-relationship management (CRM) service, Salesforce additionally sells a complementary suite of enterprise applications targeted on client service, promoting automation, analytics and application development.
Salesforce in Action
To be a Salesforce developer, you would like to 1st skills Salesforce applications work. Below is a image which provides you the whole picture of Salesforce in action. The shopper or user either requests or provides info to the Salesforce application. this can be usually done victimisation Visualforce. This info is then passed on to the applying logic layer, written in Apex. relying upon the data, knowledge is either inserted or aloof from the info. Salesforce conjointly provides you with the choice of victimisation internet services to directly access the applying logic.
A Salesforce developer will approach development either victimisation the declarative or programmatic choices. Below is a picture that provides you with details on each the declarative and programmatic approaches accessible at every of the computer program, business logic and knowledge model layer. to make your user-interface, you’ll either use the declarative approach that is victimisation page layouts and records varieties or use programmatic approach like visualforce pages and parts.
Generally, you ought to use programmatic approach only you’ll not succeed the required user-interface victimisation the declarative approach. To develop your application’s business logic layer you’ll either use the Salesforce declarative choices of advancement, validation rules and approval processes or use programmatic approach like triggers, controllers and categories. To access the information model, you’ll use the declarative approach victimisation objects, fields and relationships. you’ll conjointly access the information model programmatically victimisation data API, REST API and bulk API.
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different types of object relations in salesforce
Master-Detail Relationship (1:n):- it’s a parent-child relationship during which the master object controls the behavior of the dependent kid object. it’s a 1:n relationship, during which there may be only 1 parent, however several kids.The main idea you would like to be understand is that, being the dominant object, the master field can not be empty. If a record/ field in master object is deleted, the corresponding fields within the dependent object are deleted. this can be referred to as a cascade delete.You can outline master-detail relationships between 2 custom objects, or between a custom object and customary object as long because the customary object is that the master within the relationship.
Lookup Relationship (1:n):-
Lookup relationships ar used after you wish to make a link between 2 objects, however while not the dependency on the parent object. the same as Master-Detail relationship, you’ll consider this as a sort of parent-child relationship wherever there’s only 1 parent, however several kids i.e. 1:n relationship.The distinction here is that despite being dominant field, deleting a record won’t lead to automatic deletion of the operation field within the kid object. so the records within the kid object won’t be affected and there’s no cascade delete here. Neither can the kid fields inherit the owner, sharing or security settings of its parent.
Junction Relationship (Many-To-Many):-
This kind of a relationship will exist once there’s a requirement to make 2 master-detail relationships. 2 master-detail relationships may be created by linking three custom objects. Here, 2 objects are going to be master objects and also the third object are going to be obsessed on each the objects. In easier words, it’ll be a toddler object for each the master objects.