Câu 1: ACD301: Appian Certified Lead Developer

You are designing a related action that edits record data. As the application is used by thousands of users, it is very likely that two users will attempt to edit the same record at the same time. It is extremely important to the business that one user's data is not overwritten by another. Which locking strategy should be used?

1. A. Implement stored procedures to check for. obtain, and release locks, along with a form to display when a record is locked.
2. B. Use the @Version annotation within the custom data type (CDT) so that the database will check for and avoid persisting stale data. — đáp án hiện tại
3. C. Add an integer column to your record type that gets incremented with every edit. Check that the value of this column is unchanged before writing to the database.