Sample Exam Questions
SELECT statement
INSERT statement
UPDATE statement
TRUNCATE statement
Operations A-D are not allowed
※This sample exam is different from those that appear in the actual OSS-DB Exam.
2024/05/10
LOCK TABLE acquires a lock at the table level. By default, ACCESS EXCLUSIVE is used as the lock mode.
This is the most restrictive lock and conflicts with all operations in PostgreSQL.
Therefore, the correct answer is E.
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