The fields are considered columns of tables. There are four types of fields in Salesforce
- Identity – It is a 15 character, case sensitive field auto-generated by Salesforce for each object’s record.
- System – There are read-only and used to keep information of record in fields like created date, lastmodifiedbyID, and lastmodifieddate
- Name – Each record is mandatory to have a name and stored in this field.
- Custom – The user-defined field created on a standard or a custom object.