Exception Class and Built-In Exceptions
| Exception | Description |
| TypeException | Any problem with type conversions, such ... |
| UnexpectedException | A non-recoverable internal error within ... |
| VisualforceException | Any problem with a Visualforce page. For ... |
| XmlException | Any problem with the XmlStream classes, ... |
What is apex in Salesforce?
Uses of Apex class :-
- In Salesforce, Apex classes are used to implement the actions associated with an object.
- Apex classes will have specific methods to execute the actions of the object.
- classes will have constructors to create the objects.
How to create Salesforce instance?
Using Windows Command Prompt or Mac OS’ terminal and run nslookup
- Press and hold ‘Windows’ key on keyboard and press ‘R’ letter key
- Windows Run Dialog will open. Type ‘cmd’ and hit ‘Enter’
- Type ‘nslookup’ followed by ‘yourdomain.my.salesforce.com’ and hit ‘Enter’
- You will see your instance name below in the line which starts with ‘Name:xy1’ where ‘xy1’ will be your instance.
Is Salesforce just a CRM tool?
Salesforce CRM is a cloud-based CRM software solution that provides typical CRM features as well as enterprise solutions that are focused on customer service and automation.
How to solve Salesforce flow errors?
- The status on the Result record may not have been updated as success or failed after the job execution, hence, the flow step is still in progress. ...
- Make sure the step prior to updating the Result record has not failed. ...
- Variable names are case sensitive. ...
How do I handle exceptions in Salesforce?
You must specify the most specific exception catch block first and the most generic exception catch block at last.Your try-catch block looks like below snippet of code: try{ ... Your try-catch block for apex callout look like below snippet of code: try{ ... Handling different types of exception:
What is DML exception in Salesforce?
DML statements return run-time exceptions if something went wrong in the database during the execution of the DML operations. You can handle the exceptions in your code by wrapping your DML statements within try-catch blocks. The following example includes the insert DML statement inside a try-catch block.
Which exceptions Cannot be caught in Salesforce?
What is query exception in Salesforce?
QueryException: QueryException occurs when there is a problem in SOQL queries such as assigning a query that returns no records or more than one record to a single sObject variable. Ex: try { // This statement doesn't cause an exception, // if we don't have a problem in SOQL Queries.
What is asynchronous apex in Salesforce?
Asynchronous Apex. In a nutshell, asynchronous Apex is used to run processes in a separate thread, at a later time. An asynchronous process is a process or function that executes a task "in the background" without the user having to wait for the task to finish.
What is try catch in Salesforce?
Try-Catch-Finally Statements The try statement identifies a block of code in which an exception can occur. The catch statement identifies a block of code that can handle a particular type of exception. A single try statement can have zero or more associated catch statements.
What is difference between error and exception in Salesforce?
An exception denotes an error that disrupts the normal flow of code execution. You can use Apex built-in exceptions or create custom exceptions. All exceptions have common methods.
What is an apex error?
This Apex error occurs when you reference a method incorrectly. It can be a little frustrating at first, but once you understand how to troubleshoot it, it is simple to solve.
What is limit exception in Salesforce?
Description. The following error appears when you exceed the Execution Governors Limit (you can run up to a total 100 SOQL queries in a single call or context).
What are custom exceptions in Apex?
Custom exceptions enable you to specify detailed error messages and have more custom error handling in your catch blocks. Exceptions can be top-level classes, that is, they can have member variables, methods and constructors, they can implement interfaces, and so on.
What is the order of execution in Salesforce?
What is Order of Execution in Salesforce? A set of rules that describe the path a record takes through all automation and the events that happen from SAVE to COMMIT. Before Salesforce executes these events on the server, the browser runs JavaScript validation if the record contains any dependent pick-list fields.
What are governing limits in Salesforce?
Simply put, Salesforce Governor Limits are usage caps enforced by Salesforce to ensure efficient processing. They allow for multiple users of the platform without impeding performance. There are many different types of governor limits, some of which are tied to your Salesforce edition.
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Throw Statements
A throw statement allows you to signal that an error has occurred. To throw an exception, use the throw statement and provide it with an exception object to provide information about the specific error. For example:
Try-Catch-Finally Statements
The try statement identifies a block of code in which an exception can occur.
Versioned Behavior Changes
In API version 41.0 and later, unreachable statements in your code will cause compilation errors. For example, the following code block generates a compile time error in API version 41.0 and later. The third statement can never be reached because the previous statement throws an unconditional exception.
