Quick skill test · 20 questions · 20 minutes · Free

Oracle Database SQL Practice Test

Tests readiness for the Oracle Database SQL Certified Associate exams (1Z0-071, and the 23ai version 1Z0-171) — retrieving and restricting data with single-row functions, joins, grouping and subqueries, DML, transactions and set operators, and DDL, constraints, schema objects and privileges — written to the Oracle exam topics and the Oracle Database SQL Language Reference for 2026. Pass to earn Oracle Database SQL Readiness SOA-ODSQ.

What is the Oracle Database SQL Practice Test?

  • Career Booster
  • Recruiter Friendly
  • Quality Assured

Updated for 2026 and 2027 exams. Covers retrieving data and single-row functions, joins, grouping and subqueries, DML, transactions and set operators and DDL, constraints, objects and security.

The Oracle Database SQL Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests readiness for the Oracle Database SQL Certified Associate exams (1Z0-071, and the 23ai version 1Z0-171) — retrieving and restricting data with single-row functions, joins, grouping and subqueries, DML, transactions and set operators, and DDL, constraints, schema objects and privileges — written to the Oracle exam topics and the Oracle Database SQL Language Reference for 2026. Score 70% or more on its 20 questions to earn a verifiable Oracle Database SQL Readiness certificate (SOA-ODSQ). Every question is based on published standards and research — including Oracle Database 23ai SQL Language Reference (Oracle), Oracle Database Security Guide (Oracle) — and each answer is explained with its source.

Built for your job title

SQL or PL/SQL developer, Oracle database administrator, Data or BI analyst, Application developer using Oracle and Database student — and anyone who wants quick, verifiable proof of Oracle Database SQL knowledge for a CV or LinkedIn in 2026 and 2027.

  • SQL or PL/SQL developer
  • Oracle database administrator
  • Data or BI analyst
  • Application developer using Oracle
  • Database student

What the test covers

Four skill areas with 5 questions each, drawn from a bank of 10 per area, so a retake brings questions you haven't seen.

  1. Retrieving Data and Single-Row Functions

    25%
    • SELECT and WHERE
    • Character and number functions
    • Dates and conversion
  2. Joins, Grouping and Subqueries

    25%
    • Joins
    • Group functions
    • Subqueries
  3. DML, Transactions and Set Operators

    25%
    • INSERT, UPDATE, DELETE, MERGE
    • COMMIT and ROLLBACK
    • Set operators
  4. DDL, Constraints, Objects and Security

    25%
    • Tables and constraints
    • Views, sequences, indexes and synonyms
    • Privileges

Independent practice test. Science of Apps is not affiliated with, endorsed by or sponsored by Oracle. Exam, product and organisation names are trademarks of their owners. Passing earns a Science of Apps certificate, not the official credential.

Based on published standards

The questions are original scenarios, and each one names the public standard, official guide or research it draws on — shown under the question while you answer, and linked in your review. These are the sources behind this test:

Try a sample question

The function that replaces a NULL commission with 0 in Oracle SQL is

  1. NULLIF(commission_pct, 0)
  2. NVL(commission_pct, 0)
  3. TO_NUMBER(commission_pct)
  4. ROUND(commission_pct, 0)
Show the answer

B. NVL(commission_pct, 0) — NVL. The real test has 20 questions like this.

How the test works

  1. 20 minutes, 20 questions

    One question per screen, with a progress bar and a countdown. Your progress is saved on this device if you need to pause.

  2. Graded on our server

    Answers reach the page only after you submit, so the certificate can only be earned by passing.

  3. Every answer explained

    Pass or not, you see every question with the right answer, why, and the source behind it. Pass mark 70%, distinction 90%.

  4. Your certificate

    Founder-signed, with a QR code and credential ID. Download PDF or PNG, add to LinkedIn, and it's emailed to you.

What you earn

Oracle Database SQL Readiness certificate preview: an ivory certificate with a gold medal marked SOA-ODSQ
LinkedIn-ready certificate

Pass, then add it to LinkedIn in one click

No typing. The Add to LinkedIn button opens your profile’s Licenses & certifications form already filled in: the certificate name, Science of Apps as the issuer, the issue date, your credential ID and a link recruiters can use to verify it.

  1. 1Take the 20-minute test
  2. 2Score 70% or more
  3. 3Click Add to LinkedIn
Free · no sign-up · also emailed to you as a PDF
How it shows on your LinkedIn profile

See every Data & BI certification and test →

Frequently asked questions

What is the Oracle Database SQL Practice Test?

The Oracle Database SQL Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests readiness for the Oracle Database SQL Certified Associate exams (1Z0-071, and the 23ai version 1Z0-171) — retrieving and restricting data with single-row functions, joins, grouping and subqueries, DML, transactions and set operators, and DDL, constraints, schema objects and privileges — written to the Oracle exam topics and the Oracle Database SQL Language Reference for 2026. Score 70% or more on its 20 questions to earn a verifiable Oracle Database SQL Readiness certificate (SOA-ODSQ). Every question is based on published standards and research — including Oracle Database 23ai SQL Language Reference (Oracle), Oracle Database Security Guide (Oracle) — and each answer is explained with its source.

Is there a free Oracle Database SQL practice test for 2026?

Yes. Science of Apps has a free Oracle Database SQL Practice Test built on the current Oracle exam outline for 2026 and 2027. It covers retrieving data and single-row functions, joins, grouping and subqueries, DML, transactions and set operators and DDL, constraints, objects and security, scores you instantly and issues a verifiable certificate.

How do I take the Oracle Database SQL Practice Test for free?

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Oracle Database SQL Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Are the Oracle Database SQL Practice Test questions based on real standards?

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Oracle Database 23ai SQL Language Reference (Oracle); Oracle Database Security Guide (Oracle). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

What does the Oracle Database SQL Practice Test cover?

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Retrieving Data and Single-Row Functions (SELECT and WHERE, Character and number functions and Dates and conversion); Joins, Grouping and Subqueries (Joins, Group functions and Subqueries); DML, Transactions and Set Operators (INSERT, UPDATE, DELETE, MERGE, COMMIT and ROLLBACK and Set operators); DDL, Constraints, Objects and Security (Tables and constraints, Views, sequences, indexes and synonyms and Privileges). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Who should take the Oracle Database SQL Practice Test?

SQL or PL/SQL developer, Oracle database administrator, Data or BI analyst, Application developer using Oracle and Database student. It suits anyone who wants a quick, verifiable way to show Oracle Database SQL knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

What is on the Oracle 1Z0-071 exam?

Oracle Database SQL (1Z0-071) is a 120-minute multiple-choice exam of about 63 questions on relational concepts, SELECT statements, single-row and group functions, joins, subqueries, set operators, DML, transactions, DDL, constraints, views, sequences, indexes, synonyms and user access. Oracle also offers the 23ai-based 1Z0-171 exam covering much the same ground.

Which Oracle SQL exam should I take, 1Z0-071 or 1Z0-171?

Both lead to the Oracle Database SQL Certified Associate. 1Z0-071 is the long-standing exam; 1Z0-171 is based on Oracle Database 23ai and covers the same core SQL with some newer features. Choose based on the version your employer uses.

Is this the official Oracle Database SQL exam?

No. It is an independent practice test written to the publicly available Oracle Database SQL content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Can I take the Oracle Database SQL Practice Test from any country?

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

How long is the Oracle Database SQL Practice Test?

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

How hard is the Oracle Database SQL Practice Test?

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

How much do Science of Apps certifications cost?

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

How are the tests graded?

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

What happens if I don't pass?

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

Do the certificates expire?

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Can I add the certificate to LinkedIn?

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

How can an employer verify my certificate?

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

Are these accredited qualifications?

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.

All free · no sign-up

2402 more certifications to collect

Keep exploring

Read before you test

Pass it on

Challenge a friend or your team

Send them this test. It's free, takes minutes, and you can compare scores — every certificate can be verified.

Join free

Get the ideas, not the noise.

Sign up with Google and we’ll send you short UX psychology tips by email — why people tap, stall and leave, and what to do about it. Unsubscribe anytime. Prefer something to keep? Get the free Laws of UX guide as a PDF.

Get the free Laws of UX PDFFree · no spam · unsubscribe anytime
Free PDF · 74 pages · 2 editions

The Laws of UX, in one field guide

60 research-backed principles in 6 categories — what each one means, why it works on the human brain and how to use it on your own screens. Written by Sushant Singh, founder of Science of Apps, who has scaled consumer apps to lacs of users and spent 10+ years leading product across startups and digital businesses in the US, EU & India.

Pick your edition
Free PDF · 74 pages

Get Laws of UX by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy

Free PDF · 90 pages · 2 editions

100+ Subscription Paywalls, decoded

110 real paywalls from top apps, taken apart, rated out of 5 and decoded with the Laws of UX — plus the frameworks, copy and checklists to ship your own. By Sushant Singh, founder of Science of Apps.

  • 110 paywalls rated
  • 34 Laws of UX
  • 12 frameworks

Which paywall scored 4.8 out of 5, and which scored 2.6? It’s all inside.

Pick your edition
Free PDF · 90 pages

Get 100+ Paywalls, Decoded by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy