In Apex, the interaction with the underlying database to execute queries and DML operations yields a structured response containing valuable information about the operation’s outcome. This response includes details such as the success or failure status, any error messages encountered, and, crucially, the affected rows for DML operations or retrieved records for SOQL queries. For example, after inserting records, the response provides access to the IDs of the newly created records and any database-generated errors.
Accessing this structured response is essential for robust and informative Apex development. It allows developers to programmatically handle different outcomes, implement appropriate error handling mechanisms, and leverage the returned data for subsequent operations within the same transaction. This capability contributes to writing efficient, reliable, and maintainable Apex code. Historically, effectively managing these responses has been fundamental to ensuring data integrity and application stability in the Salesforce ecosystem.
