System Defined Exception In Salesforce | Salesforce Premium Development Course 2023
In this informative video, we will understand about system-defined exceptions in Salesforce. System-defined exceptions are predefined exceptions that Salesforce throws whenever a logical issue arises during code execution. We will explore the different types of system-defined exceptions, learn how they occur, and discover best practices for handling them effectively. We begin by discussing the major types of system-defined exceptions in Salesforce: DML Exception: This exception occurs when a DML operation (insert, update, delete) fails due to various reasons. For example, inserting a record without a required field will trigger a DML exception. We'll demonstrate how to catch and handle DML exceptions using try-catch blocks. ListException: ListException catches runtime errors related to list manipulation. This exception is thrown when attempting to access elements that don't exist in a list. We'll provide a practical example and show you how to handle ListExceptions gracefully. NullPointerException: NullPointerException is raised when trying to reference a null variable. We'll explain scenarios where null pointer exceptions commonly occur and guide you on handling them in your code. QueryException: QueryException is thrown when there are issues with SOQL queries, such as returning no records or multiple records when assigned to a single sObject variable. We'll showcase how to handle query exceptions effectively in your Salesforce code. Generic Exception: The generic exception is a catch-all exception that can handle any type of exception. We'll explain when and how to use the generic exception to capture unexpected errors in your code. In Addition to this, we'll also explore common methods available in exception classes that provide valuable information about the exception, such as the type of exception, error message, cause, line number, and stack trace. Understanding these methods will assist in troubleshooting and debugging your Salesforce applications. Questions Covered in the video: What are system-defined exceptions in Salesforce? How can I handle DML exceptions in Apex? What is a NullPointerException, and how do I prevent it? Can you explain ListExceptions and how to handle them in Salesforce? What causes a QueryException, and how can I resolve it? When should I use the generic exception in my code? What are the common methods available in exception classes, and how can they help in debugging? This video is part of our comprehensive Salesforce Developer course, where you can learn everything about Apex and Salesforce programming. For more detailed information with proper notes and resources, you can check out our website https://shreysharma.com/free-salesforce-developer-tutorials/ Connect with Shrey on :- Instagram: https://www.instagram.com/imShreySharma/ Facebook:- https://m.facebook.com/SalesforceHulk Twitter:- https://twitter.com/iamshreysharma Linkedin:- https://www.linkedin.com/in/imshreysharma/ Follow S2 labs on : Instagram - https://instagram.com/s2_labs?igshid=MmJiY2I4NDBkZg== Facebook:- https://www.facebook.com/S2Labs.Shrey?mibextid=ZbWKwL Twitter:- https://twitter.com/s2_labs?t=AAeqNztvlSFkpRkGkjkJ8g&s=08 Linkedin:- https://www.linkedin.com/company/s2-labs-by-shrey-sharma/ Follow Cyntexa on : Instagram - https://instagram.com/cyntexa?igshid=MmJiY2I4NDBkZg== Facebook:- https://www.facebook.com/cyntexa/ Twitter:- https://twitter.com/cyntexa Linkedin:- https://www.linkedin.com/company/cyntexa/mycompany/ #salesforce #learnsalesforce #salesforcetraining #salesforcedeveloper #salesforcedevelopment #shreysharma #salesforcehulk #salesforceknowledge #sosl #soslinapex #apex #exceptionhandling #exception #soql
In this informative video, we will understand about system-defined exceptions in Salesforce. System-defined exceptions are predefined exceptions that Salesforce throws whenever a logical issue arises during code execution. We will explore the different types of system-defined exceptions, learn how they occur, and discover best practices for handling them effectively. We begin by discussing the major types of system-defined exceptions in Salesforce: DML Exception: This exception occurs when a DML operation (insert, update, delete) fails due to various reasons. For example, inserting a record without a required field will trigger a DML exception. We'll demonstrate how to catch and handle DML exceptions using try-catch blocks. ListException: ListException catches runtime errors related to list manipulation. This exception is thrown when attempting to access elements that don't exist in a list. We'll provide a practical example and show you how to handle ListExceptions gracefully. NullPointerException: NullPointerException is raised when trying to reference a null variable. We'll explain scenarios where null pointer exceptions commonly occur and guide you on handling them in your code. QueryException: QueryException is thrown when there are issues with SOQL queries, such as returning no records or multiple records when assigned to a single sObject variable. We'll showcase how to handle query exceptions effectively in your Salesforce code. Generic Exception: The generic exception is a catch-all exception that can handle any type of exception. We'll explain when and how to use the generic exception to capture unexpected errors in your code. In Addition to this, we'll also explore common methods available in exception classes that provide valuable information about the exception, such as the type of exception, error message, cause, line number, and stack trace. Understanding these methods will assist in troubleshooting and debugging your Salesforce applications. Questions Covered in the video: What are system-defined exceptions in Salesforce? How can I handle DML exceptions in Apex? What is a NullPointerException, and how do I prevent it? Can you explain ListExceptions and how to handle them in Salesforce? What causes a QueryException, and how can I resolve it? When should I use the generic exception in my code? What are the common methods available in exception classes, and how can they help in debugging? This video is part of our comprehensive Salesforce Developer course, where you can learn everything about Apex and Salesforce programming. For more detailed information with proper notes and resources, you can check out our website https://shreysharma.com/free-salesforce-developer-tutorials/ Connect with Shrey on :- Instagram: https://www.instagram.com/imShreySharma/ Facebook:- https://m.facebook.com/SalesforceHulk Twitter:- https://twitter.com/iamshreysharma Linkedin:- https://www.linkedin.com/in/imshreysharma/ Follow S2 labs on : Instagram - https://instagram.com/s2_labs?igshid=MmJiY2I4NDBkZg== Facebook:- https://www.facebook.com/S2Labs.Shrey?mibextid=ZbWKwL Twitter:- https://twitter.com/s2_labs?t=AAeqNztvlSFkpRkGkjkJ8g&s=08 Linkedin:- https://www.linkedin.com/company/s2-labs-by-shrey-sharma/ Follow Cyntexa on : Instagram - https://instagram.com/cyntexa?igshid=MmJiY2I4NDBkZg== Facebook:- https://www.facebook.com/cyntexa/ Twitter:- https://twitter.com/cyntexa Linkedin:- https://www.linkedin.com/company/cyntexa/mycompany/ #salesforce #learnsalesforce #salesforcetraining #salesforcedeveloper #salesforcedevelopment #shreysharma #salesforcehulk #salesforceknowledge #sosl #soslinapex #apex #exceptionhandling #exception #soql