Salesforce makes use of polymorphic relationship fields for native lookup fields that can reference multiple objects. The most common fields that use polymorphic relationships are Owner fields and Activity WhatId/WhoId fields.
What is a polymorphic field in Salesforce?
A polymorphic field is one where the related object might be one of several different types of objects. For example, the Who relationship field of a Task can be a Contact or a Lead. To determine what kind a field is, call describeSObjects () on the object and examine the properties for the field.
What is the object type of a polymorphic field in soql?
In the Enterprise and Tooling API WSDLs, the object type of a polymorphic field depends on the version of the API. In API version 46.0 and later (and in versions where the Developer Preview part of the SOQL Polymorphism feature is enabled), the object type is sObject.
What is a lookup field in Salesforce?
In Salesforce, you can use a lookup field to associate two records in a relationship. For example, a user can associate a contact record to an account record using the Account Name lookup field. When editing a lookup field, the user must find the right record to associate. Additionally, what is lookup dialogs in Salesforce?
What is a polymorphic field?
Some fields are relationship fields, which means they can be used to get information about a related object. And some of those relationship fields are polymorphic fields. A polymorphic field is one where the related object might be one of several different types of objects.
What is an example of a polymorphic lookup in Salesforce?
Example of a Polymorphic Field relationshipName = Owner. namePointing = true. referenceTo = Calendar, User.
Which one is a polymorphic lookup field in Salesforce?
Salesforce makes use of polymorphic relationship fields for native lookup fields that can reference multiple objects. The most common fields that use polymorphic relationships are Owner fields and Activity WhatId/WhoId fields.
What is polymorphic lookup?
Multi-table lookups (also sometimes known as polymorphic lookups) allow the creation of a lookup in one table that looks up records in multiple other tables at once. This provides much greater flexibility in retrieving data within your environments.
What is polymorphic relationships in Salesforce?
A polymorphic relationship is a relationship where the referenced objects can be one of several different object types. For example, the What relationship field in an Event can reference an Account, or a Campaign, or an Opportunity.
How do I create a polymorphic lookup in Salesforce?
You cannot create your own polymorphic lookups in Salesforce. You would need to create two separate lookup fields, one to Account and one to Opportunity. You can then, if you wish, use formula fields to pull in data from whichever lookup is populated.
What is WhatId in Salesforce?
WhatId is a single relationship to a ACCOUNT or OPPORTUNITY. This activity can only be associated with ONE Account OR Opportunity Record. WhoId is a one to many relationship between this activity to one or more CONTACTS or LEADS.
Is rollup summary possible for LookUp relationship without using code?
Unfortunately, roll-up summary fields are only available for objects in a Master-Detail relationship and are not available for those that have a Lookup relationship.
What is a record in power apps?
A record contains one or more categories of information about a person, a place, or a thing. For example, a record might contain the name, the email address, and the phone number of a single customer. Other tools refer to a record as a "row" or an "item."
How do I display a LookUp field in PowerApps?
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Which exception Cannot be caught?
Exceptions that Can't be Caught One such exception is the limit exception ( System. LimitException ) that the runtime throws if a governor limit has been exceeded, such as when the maximum number of SOQL queries issued has been exceeded.
Is event a standard object in Salesforce?
Event records have standard fields for tracking and recording event details. These standard fields for tracking and recording event details are available in Lightning Experience. These standard fields for tracking and recording event details are available in Salesforce Classic.
Is event a standard object in Salesforce?
Event records have standard fields for tracking and recording event details. These standard fields for tracking and recording event details are available in Lightning Experience. These standard fields for tracking and recording event details are available in Salesforce Classic.
Is rollup summary possible for lookup relationship without using code?
Unfortunately, roll-up summary fields are only available for objects in a Master-Detail relationship and are not available for those that have a Lookup relationship.
What is polymorphic field?
A polymorphic field is one where the related object might be one of several different types of objects. For example, the Who relationship field of a Task can be a Contact or a Lead. To determine what kind a field is, call describeSObjects () on the object and examine the properties for the field.
What is SOQL typeof?
SOQL supports polymorphic relationships using the TYPEOF expression in a SELECT statement. TYPEOF is available in API version 46.0 and later. (It is also available in API version 26.0 and later as part of a Developer Preview.)
Can typeof be used with a relationship field?
TYPEOF can’t be used with a relationship field whose namePointing attribute is false. TYPEOF can’t be used with a relationship field whose relationshipName attribute is false. TYPEOF is only allowed in the SELECT clause of a query.
Can you use a polymorphic field in a query?
You can use the polymorphic field for the relationship. You can use the Type qualifier on a polymorphic field. You can use a TYPEOF clause in a query. You can also combine these techniques for complex queries.
Can you use typeof in SOQL?
TYPEOF can’t be used in SOQL queries that are the basis of Streaming API PushTopics. TYPEOF can’t be used in SOQL used in Bulk API. TYPEOF expressions can’t be nested. For example, you can’t use TYPEOF inside the WHEN clause of another TYPEOF expression.
What are the most common polymorphic relationships in Salesforce?
The most common fields that use polymorphic relationships are Owner fields and Activity WhatId/WhoId fields. There may come a time when you need to work with these fields and be able to make certain decisions based on the type ...
Can you use describe in SOQL?
You can use a describe call to access the information about parents for an object, or you can use the who, what, or owner fields (depending on the object) in SOQL queries. This object cannot be directly accessed. Here is the code I used to discover this issue.