Built for IT workers' reality: the Oracle MySQL 8.0 Database Developer online version at ValidVCE fits around shifts and commutes — 66 practice questions for the 1z1-909 exam, perfectly suited to busy schedules.
Oracle 1z1-909 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | MySQL 8.0 Database Developer |
| Exam Number: | 1Z0-909 |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 65 |
| Passing Score: | 62% |
| Related Certifications: | MySQL 8.0 Database Administrator Oracle Certified Professional MySQL 8.0 |
| Exam Price: | USD 245 (varies by region) |
| Exam Format: | Multiple Choice |
| Recommended Training: | Become a MySQL 8.0 Database Developer Professional Learning Path (Oracle) |
| Exam Registration: | Oracle Certification Exam Page |
| Sample Questions: |  |
| Exam Way: | Online proctored exam (Oracle testing center / remote proctoring) |
| Pre Condition: | Recommended experience with MySQL 8.0 database development and SQL application programming; no strict mandatory prerequisite exam officially enforced. |
| Official Syllabus URL: | https://education.oracle.com/mysql-80-database-developer/pexam_1Z0-909 |
Oracle 1z1-909 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data-driven Applications | - Application-level SQL usage
|
| Topic 2: Connectors and APIs | - Connector selection and usage
|
| Topic 3: Query Optimization | - Performance tuning
|
| Topic 4: JSON and Document Store | - JSON processing and NoSQL features
|
| Topic 5: Transactions | - Transaction management
|
| Topic 6: MySQL Stored Programs | - Stored program development
|
| Topic 7: MySQL Schema Objects and Data | - Database object design
|
1z1-909 Exam FAQ — No Limits
The Oracle MySQL 8.0 Database Developer blueprint spans 7 domains — including MySQL Schema Objects and Data, MySQL Stored Programs, Connectors and APIs. Weightings show where the exam concentrates; the full outline above covers every subtopic.
Through the vendor's official registration channels:
The Oracle MySQL 8.0 Database Developer is delivered Online proctored exam (Oracle testing center / remote proctoring) — choose the arrangement that suits you when booking.
USD 245 (varies by region) per attempt, 62% to pass. Every retake bills the full fee, so make practice thorough first — the 66 practice questions for the 1z1-909 exam at ValidVCE are the affordable rehearsal.
Delivery is instant — an automatic email within a minute of payment, unlimited installations, and 24/7 customer assisting for downloading or purchasing problems if nothing arrives within 2 hours. If you fail the corresponding 1z1-909 exam within 60 days of purchase, pick your remedy: a full refund (email a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam; after confirmation, processed within 7 days), waiting for the next updated version free, or a free change to two other equal-value dumps. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products.
Yes:
Training covers theory; interactive practice covers readiness. After any course, rehearse with the 66 practice questions for the Oracle MySQL 8.0 Database Developer — every answer expert-verified.
The Oracle MySQL 8.0 Database Developer is Oracle's certification exam for Oracle Certified Professional (OCP) MySQL 8.0 Database Developer, at the Professional level. It demonstrates verified, job-relevant capability to employers. Related credentials include MySQL 8.0 Database Administrator, Oracle Certified Professional MySQL 8.0.
90 minutes for 65 questions. Rehearse the format interactively: the ValidVCE online engine recreates the test atmosphere, so pacing is trained before it counts.
Yes — a free Oracle MySQL 8.0 Database Developer demo is available to download on our exam page. Evaluate the material yourself; purchases include 365 days of free updates, emailed immediately upon release, renewable at 50% off afterward.
Recommended experience with MySQL 8.0 database development and SQL application programming; no strict mandatory prerequisite exam officially enforced. Eligibility rules change from time to time, so confirm the current requirements on the official page (official 1z1-909 exam page) before booking.
Oracle MySQL 8.0 Database Developer Sample Questions:
Which two statements are true about AUTO_INCREMENT?
- A. A server restart always resets the AUTO_INCREMENT value to largest value in the AUTO_INCREMENT column plus 1.
- B. A table can have multiple AUTO_INCREMENT columns.
- C. AUTO_INCREMENT values allocated to a transaction that is rolled back are not reused.
- D. An AUTO_INCREMENT column must be indexed.
- E. The decimal data type supports AUTO_INCREMENT.
Correct Answer: C,D 🗳️
Which two differences exist between the timestamp and date time data types?
- A. timestamp converts the value based on the session time zone.
- B. timestamp has larger range of values.
- C. timestamp uses less storage space.
- D. timestamp stores the interval between two dates.
- E. timestamp stores more decimal points in seconds
Correct Answer: A,C 🗳️
How does InnoDB choose deadlock victims in MySQL?
- A. It chooses the transaction with the most accumulated CPU time.
- B. It chooses the transaction with the fewest modified rows.
- C. It chooses the transaction with the least accumulated CPU time.
- D. It chooses the transaction with the lowest transaction ID.
- E. It chooses the transaction randomly.
- F. It chooses the transaction with the most modified rows.
Correct Answer: E 🗳️
Which change will prevent negative ages to be inserted into the people table?
- A. ALTER TABLE people ADD COLUMN valid_age=ABS(check_age) GENERATED ALWAYS;
- B. ALTER TABLE people ADD CONSTRAINT check_age CHECK (ABS(age)>=0);
- C. DELIMITER //
CREATE TRIGGER age check AFTER INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER; - D. DELIMITER //
CREATE TRIGGER agecheck BEFORE INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER ;
Correct Answer: B 🗳️
The collection col contains all episodes for all seasons for a TV show.
Examine this document which has an example of the details for each episode:
Which query returns all expisode names from the first season?
- A. SELECT doc->,,$.name,, FROM col WHERE doc->"$ . season" = "1";
- B. SELECT "S.name" FROM col WHERE "S.season" = "1";
- C. SELECT name FROM col WHERE season = 1;
- D. SELECT doc->"$.name" FROM col WHERE doc->"$.season" = "1";
Correct Answer: B 🗳️
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