If you want to cast query results to string this might help String x = JSON.serializePretty ([SELECT Id FROM Account LIMIT 5]); // you can do JSON.serialize () too System.debug (x); If the bot closes there's high chance some exception is thrown.
Full Answer
What are exceptions 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. All exceptions support built-in methods for returning the error message and exception type.
Is it possible to convert list to string[] in Salesforce?
I believe there are many question related to this one. Anyways, List<String> and String [] are treated as same in Salesforce. You don't need conversion. Check this question related to the same topic under discussion and has good detail.
Is it possible to parse dates from external systems in Salesforce?
Yes, parsing dates entered from external systems is a pain in Salesforce as the SFDC date parsing is limited. I use this Utility class method to parse dates in locale or yyyy-mm-dd format and it could be extended for other allowed formats
What is the purpose of the exception handling function?
Returns the stack trace of a thrown exception as a string. Returns the type of exception, such as DmlException, ListException, MathException, and so on. Sets the cause for this exception, if one hasn’t already been set.
What are the different types of exceptions in Salesforce?
shariqAsyncException. Any problem with an asynchronous operation, such as failing to enqueue an asynchronous call.CalloutException. ... DmlException. ... EmailException. ... ExternalObjectException. ... InvalidParameterValueException. ... LimitException. ... JSONException.More items...
How do I handle exceptions in Salesforce?
Exception handling is done in apex by using the try and catch mechanism, basically any code which can throw an exception is enclosed in a try block and each try block is followed by a catch block which is entered if the try block throws an exception. Exception occurs during the run time / execution of a program.
What is sObject exception in Salesforce?
SObjectExceptionAny problem with sObject records, such as attempting to change a field in an update statement that can only be changed during insert. This example results in an SObjectException in the try block, which is caught in the catch block.
How do I log exceptions in Salesforce?
Use that exception class in your code.Create Custom Object : Let us create new custom object in our salesforce application. Custom object name and fields details are as below image. ... Create Apex class for Exception. We have to create apex class which will extend Exception class. ... Use that exception class in your code.
How does Salesforce handle exceptions in trigger?
RelatedCustom Roll up Trigger Exception Handling.Problem with try catch block inside trigger.Validation rule on Account Object.Trigger causing an unexpected Exception while inserting a record in to the Object.Throw error instead of Exception in trigger.old.More items...•
How do I write an exception in Apex?
To create your custom exception class, extend the built-in Exception class and make sure your class name ends with the word Exception , such as “MyException” or “PurchaseException”. All exception classes extend the system-defined base class Exception , and therefore, inherits all common Exception methods.
How do I resolve a mixed DML exception in Salesforce?
How do you resolve a mixed DML exception?Following future method execute asynchronously (whenever server is free it will execute in future context).We should not declare @future method in Apex Trigger.@future method should be always static. @ ... @future method should not contain return type.More items...
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 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.
What is Callout exception in Salesforce?
CalloutException: You have uncommitted work pending. Please commit or rollback before calling out” occurs when you first perfrom callout and then DML in same transaction. To resolve this issue you need to perform DML in future method so your callout and DML will be in different transaction.
What is Field_custom_validation_exception?
The FIELD_CUSTOM_VALIDATION_EXCEPTION error can occur during a data deployment if you have added a new custom validation rule or an Apex trigger in your target org.
How do you know the exact line of code where an exception has been caused?
Compile your software in debug mode and run it with valgrind. It is mainly for finding memory leaks but it can also show you the exact line of where exceptions occur valgrind --leak-check=full /path/to/your/software .
Top Tip - Logging Exceptions
Most people will be using this code for logging. Consider using Serilog with my Serilog.Exceptions NuGet package which also logs all properties of an exception but does it faster and without reflection in the majority of cases. Serilog is a very advanced logging framework which is all the rage at the time of writing.
Top Tip - Human Readable Stack Traces
You can use the Ben.Demystifier NuGet package to get human readable stack traces for your exceptions or the serilog-enrichers-demystify NuGet package if you are using Serilog. If you are using .NET Core 2.1, then this feature comes built in.