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Exam 1z0-908 topic 1 question 71 discussion

Actual exam question from Oracle's 1z0-908
Question #: 71
Topic #: 1
[All 1z0-908 Questions]

Examine these statements, which execute successfully:
TRUNCATE test;
BEGIN;
INSERT INTO test(id, name) VALUES(1, “Hello”);
ROLLBACK;
SELECT id FROM test;
Which three storage engines would return a nonempty recordset for the test table when executing the statements? (Choose three.)

  • A. NDB
  • B. ARCHIVE
  • C. InnoDB
  • D. BLACKHOLE
  • E. MEMORY
  • F. MyISAM
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Suggested Answer: ADF 🗳️
by Dhanushka at July 31, 2023, 3:15 p.m.

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marklv
1 year, 5 months ago
bkackhole does not. tested. MEMORY doesn't rollback, so its MyISAM, ARCHIVE, and MEMORY
upvoted 1 times
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Dhanushka
1 year, 5 months ago
Selected Answer: BEF
B. ARCHIVE - This engine is for storing large amounts of data without indexes in a very small footprint. It does not support transactions, so the INSERT would not be rolled back.
upvoted 2 times
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Dhanushka
1 year, 6 months ago
Selected Answer: AEF
Blackhole will show data
upvoted 1 times
marklv
6 months, 3 weeks ago
blackhole is only meant to record data in the binlog. It wlll always succeed but never record data in the database,
upvoted 1 times
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