Learn Salesforce Basics - Blog - 5.2

                                                   

In the previous post (3.1), I have discussed Salesforce basics topics like Standard object, Custom object, Profiles, Permission Sets, Roles, Workflows, Process Builder, Approval Process, Flows etc.

1. What are the types of Relationships in salesforce ?

• Lookup Relationship
• Master-Detail Relationship
• Self Lookup
• Many-to-Many Relationship
• External Lookup 

2. What is  Lookup Relationship ?

• It links two objects together.
• It is allowed upto 25 for an object.
• No impact on security and access and deletion.
• Lookup field is not required.

3. What is Master-Detail Relationship ?

• It is a parent-child relationship.
• If a parent is deleted, child also gets deleted.
• Rollup Summary field can only be created on Master records which will calculate the SUM, MIN, SUM of child records etc.
• Allowed upto 2 on an object.
• Access to parents determine access to children.
• A child of one M-D relationship cannot be parent of another.
• Lookup field on page layout is required.

4. What do you mean by Many-to-Many Relationship ?

• You can use Master-Detail relationship to model many-to-many relationship between any two objects. 
• For this, a junction object is created.

5. What is Self Lookup Relationship ?

• A self-Relationship is a lookup relationship to the same object.

6. What is External Lookup Relationship ?

• An external lookup relationship is another new field type introduced with Salesforce Connect. 
• This type links an object to an external object. 

7. What is Junction Object ?

• It is an object that contains many-to-many relationships between to related objects.

8.  What are Validation Rules ?

• It verifies that the data a user enters in the record meet the standards you specify before the user can save the record.
• A validation rule can contain a formula or expression that evaluates the data in one or more fields and returns a value of "True" or "False".

9. What is Page Layout/ Editor ?

• It helps you manage the content of pages in both our Classic UI and Lightning Experience.
• It lets you control which fields, lists of related records user can see, which field is visible, read only, required etc.

10. What are Record Types ?

• It customizes the UI by assigning multiple page layouts and separate UI for the same object.
• It lets you offer different business processes, picklist values, page layouts to different users.