Salesforce 面试题与答案
问题 26. Explain the concept of sharing rules in Salesforce.
Sharing rules in Salesforce are used to extend access to records that meet certain criteria. They can be used to grant read or read/write access to specific users or groups of users.
问题 27. What is the difference between a trigger and a validation rule in Salesforce?
A trigger is an Apex code that performs complex calculations and manipulations on data, while a validation rule is a declarative way to enforce data quality by restricting certain values or combinations of values.
问题 28. Explain the use of the @future(callout=true) annotation in Apex.
The @future(callout=true) annotation in Apex is used to make asynchronous callouts to external web services. It allows the Apex method to make a callout and return without waiting for the response.
问题 29. How can you prevent governor limit issues in Salesforce?
To prevent governor limit issues in Salesforce, developers should write efficient code, use bulk processing techniques, and implement proper error handling. Additionally, consider using asynchronous processing for long-running operations.
问题 30. Explain the difference between a standard object and a custom object in Salesforce.
A standard object is provided by Salesforce, such as Account or Contact, while a custom object is created by users to store information specific to their organization's needs.
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