Database
Relation
Tuple
Column
Parameter
※This sample exam is different from those that appear in the actual OSS-DB Exam.
2025/05/30
The correct answers are B and C.
The locktype column indicates the type of object being locked, as follows:
relation, extend, page, tuple, transactionid, virtualxid, object, userlock, advisory
This information is useful in identifying the cause of lock conflicts.