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What are the exceptions in Apex?
Exceptions note errors and other events that disrupt the normal flow of code execution. throw statements are used to generate exceptions, while try , catch , and finally statements are used to gracefully recover from exceptions.
What is used as the type to catch any type of exception?
The last catch block is handy because it catches any exception type, and so catches any exception that was not caught in the previous catch blocks. Suppose we modified the code above to cause a NullPointerException to be thrown, this exception gets caught in the last catch block.
Which is the best way to use DML in apex?
Apex offers two ways to perform DML operations: using DML statements or Database class methods. This provides flexibility in how you perform data operations. DML statements are more straightforward to use and result in exceptions that you can handle in your code.
How to catch DML exception in apex trigger?
I am trying to catch any error and log to a custom table. The below will cause Duplicate error in UI but nothing is inserted into custome object USD_Error_Log__c.. Its like trigger does not fall into either DMLException or Exception catch blocks. Any and all help is appreciated. Please try dataBase.insert or update like below code.
How to handle exceptions in a DML statement?
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.
How to throw DML exception manually in unit test?
For Example consider testAccount is a Account object in your test data. Now Below code will raise DML exception: A DML Exception will be thrown and catch block would be covered. So you need to modify your test data accordingly. The easiest way to intentionally throw DML exception is insert record without setting required field.