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Oracle 1Z0-071 Exam Practice Questions, practice question pack
ORACLE · 1Z0-071

Oracle 1Z0-071 Exam Practice Questions

99% pass rateUpdated 1 Nov 2026272 questions2 PDFs, instant download
5.03 reviews
(3 customer reviews)

US$39

Every question with the correct answer and why the other options are wrong.

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99% pass rate. Pass or your money back.Fail the exam after using this pack and we refund it, or swap it for any other pack. How the guarantee works
1Z0-071 passed. Happy with my purchase
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TRY BEFORE YOU BUY

Three of the 272 questions in this pack

Question 1

What is true about non-equijoin statement performance? (Choose two.)

  1. The BETWEEN condition always performs less well than using the >= and <= conditions.
  2. The BETWEEN condition always performs better than using the >= and <= conditions.
  3. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax.
  4. Table aliases can improve performance.
  5. The join syntax used makes no difference to performance.
Show answer and explanation

Correct answer: D, E. Table aliases can improve performance; The join syntax used makes no difference to performance.

Table aliases can improve performance by reducing parsing overhead and making queries more efficient. The join syntax used (Oracle vs ANSI) makes no difference to performance; the Oracle optimizer produces equivalent execution plans regardless of syntax style. BETWEEN and >= <= conditions perform equivalently when properly optimized.

Why the other options are wrong

  • A. BETWEEN and >= <= conditions perform identically when optimized by the Oracle engine.
  • B. BETWEEN does not inherently perform better than separate >= and <= conditions.
  • C. Oracle syntax and ANSI SQL:1999 syntax produce identical performance after optimization.

Question 2

Which two are true? (Choose two.)

  1. ADD_MONTHS adds a number of calendar months to a date.
  2. CEIL requires an argument which is a numeric data type.
  3. CEIL returns the largest integer less than or equal to a specified number.
  4. LAST_DAY returns the date of the last day of the current month only.
  5. LAST_DAY returns the date of the last day of the month for the date argument passed to the function.
  6. LAST_DAY returns the date of the last day of the previous month only.
Show answer and explanation

Correct answer: A, E. ADD_MONTHS adds a number of calendar months to a date; LAST_DAY returns the date of the last day of the month for the date argument passed to the function.

ADD_MONTHS correctly adds a number of calendar months to a date value. LAST_DAY returns the date of the last day of the month for whichever date argument is passed to the function, making it flexible for any date input. CEIL returns the smallest integer greater than or equal to a number (not the largest less than or equal to), and CEIL can accept numeric expressions beyond just numeric data types.

Why the other options are wrong

  • B. CEIL does not strictly require a numeric data type argument; it can work with numeric expressions.
  • C. CEIL returns the smallest integer greater than or equal to a number, not the largest less than or equal.
  • D. LAST_DAY returns the last day of the month for any date passed, not only the current month.
  • F. LAST_DAY returns the last day of the current month for the date argument, not the previous month.

Question 3

Which three statements are true about Oracle synonyms? (Choose three.)

  1. A synonym cannot be created for a PL/SQL package.
  2. A synonym can be available to all users.
  3. A SEQUENCE can have a synonym.
  4. Any user can drop a PUBLIC synonym.
  5. A synonym created by one user can refer to an object belonging to another user.
Show answer and explanation

Correct answer: B, C, E. A synonym can be available to all users; A SEQUENCE can have a synonym; A synonym created by one user can refer to an object belonging to another user.

Synonyms can be created as PUBLIC, making them available to all users in the database. A SEQUENCE can have a synonym created for it, allowing easier reference. A synonym created by one user can refer to an object owned by another user, enabling cross-schema access. Only the creator or DBA can drop a synonym; regular users cannot drop PUBLIC synonyms. Synonyms can be created for PL/SQL packages.

Why the other options are wrong

  • A. Synonyms can be created for PL/SQL packages; there is no such restriction.
  • D. Only the owner or DBA can drop a PUBLIC synonym; regular users cannot drop them.

See all 68 free questions Get the full pack, US$39

REVIEWS

3 reviews for Oracle 1Z0-071 Exam Practice Questions

  1. Ingrid Aguilar –

    Good buy

    1Z0-071 passed. Happy with my purchase

  2. Simon Levy –

    No regrets

    Got through my 1Z0-071 using this

  3. Rosie Clarke –

    The 1Z0-071 practice questions was surprisingly affordable for the quality it offered. Everything felt precise, with clear layout and simple flow. It’s good value for anyone wanting steady preparation without paying too much, yet still getting structured, organized content.

Only logged in customers who have purchased this product may leave a review.

How much of the Oracle 1Z0-071 bank is free?

272 questions in the bank

Each step includes the one before, so buying only adds new questions.

  • You are here10questionsFree sampleThree on this page, all ten as a PDF.Download the sample
  • 6825% of the bankPractice pageFree on the site, every answer explained.Go to the practice page
  • 136the first half of the packHalf PackFree by email, as one PDF, every answer explained.Get the Half Pack
  • 272100%, the whole bankFull pack, US$39Plus the questions-only PDF, monthly updates, refund if you fail.Get the full pack
ABOUT THIS PACK

What’s in the Oracle 1Z0-071 pack

  • 272 questions mapped to the 1Z0-071 exam objectives
  • Answers and explanations for every question, including the wrong options
  • A questions-only PDF for timed practice runs
  • Instant delivery by email the moment you check out
  • Free monthly updates for as long as the exam is live
  • Pass or your money back

A failed 1Z0-071 attempt costs another exam fee, plus the weeks it takes to get ready again. This pack is US$39, paid once, and refunded if you fail.

What makes the 1Z0-071 hard

The 1Z0-071 is the evergreen SQL exam: two decades of demand and still one of the highest-volume database certifications, because it is the standard proof of SQL for DBAs, developers and analysts alike.

It punishes approximate SQL. Candidates need to know exactly what a join returns with NULLs in play, single-row versus aggregate function behaviour, which subquery types are legal where, set operators, and the DDL and constraint questions: what happens to indexes and privileges when you drop and recreate them. People who write SQL daily still fail it, because production habits and Oracle's precise semantics diverge in exactly the places the exam looks.

About the exam

1Z0-071 certifies Oracle SQL proficiency: queries, joins, subqueries, set operators, DML and DDL, and data dictionary basics, and awards the Oracle Database SQL Certified Associate credential. No prerequisites, and the certification does not expire.

Questions before you buy

How quickly do I receive it?

Straight away. The full PDF and a questions-only copy are emailed to you the moment your payment goes through, and the same links are on your order page.

Are updates included?

Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.

What if I fail the exam?

We refund the pack, or swap it for any other pack if you would rather keep studying. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.

What is your pass rate?

99% of customers who prepare with a CertStash pack pass. If you do not, we refund the pack, or swap it for another pack.

Can I share it with colleagues?

Each purchase is licensed to one person. For a team, school or training organisation, email support@certstash.com for a licence that fits.

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