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Exam 1z0-497 topic 1 question 61 discussion

Actual exam question from Oracle's 1z0-497
Question #: 61
Topic #: 1
[All 1z0-497 Questions]

View the current parameter settings shown in the output below.

NAMETYPEVALUE -
db_file_multiblock_read_count
integer
107
ddl_lock_timeout
integer

Distributed_lock_timeout -
integer
dml_locks
integer
748
lock_sga
boolean

FALSE -
enab1e_dd1_1ogging
boolean

FALSE -
resumable_timeout
integer
A user logs in to the hrschema and issues the following commands:

SQL> CREATE TABLE emp -
(empno NUMBER(3),
enamo VARCHAR2(20),
sal NUMBER (8, 2));
SQL> INSERT INTO emp (empno, ename) VALUES(1, 'JAMES');
At this moment, a second user also logs in to the hrschema and issues the following command:
SQL> ALTER TABLE emp MODIFY salNUMBER(10, 2);
What happens in this scenario?

  • A. The second user's session immediately produces a "resource busy" error.
  • B. The second user's command executes successfully.
  • C. The second user's session waits for a time before producing a "resource busy" error.
  • D. A deadlock is created.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️

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