Write accesses include inserting, modifying, and deleting content in database tables. All write accesses
can be made as individual accesses or as mass access. If multiple rows of a database table are to be changed, mass access using internal tables generally gives better performance than individual accesses.
When making write accesses to a database table for which a database cursor is open in a SELECT loop or opened by using
OPEN CURSOR, the results set is database-specific and undefined. Avoid this kind of parallel access if possible.