Exam Name: MySQL 8.0 Database Developer
Certification Provider: Oracle
Corresponding Certification: MySQL Developer
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Updated: Nov 06, 2026
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Oracle 1Z0-909 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | MySQL 8.0 Database Developer |
| Exam Number: | 1Z0-909 |
| Exam Format: | Multiple Choice Questions (MCQ) |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Real Exam Qty: | 65 |
| Passing Score: | 62% |
| Exam Price: | USD 245 (may vary by country) |
| Related Certifications: | Oracle Certified Professional, MySQL 8.0 Database Developer |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Onsite or through test provider (Pearson VUE / Oracle testing platform) |
| Official Syllabus URL: | https://education.oracle.com/mysql-80-database-developer/pexam_1Z0-909 |
Oracle 1Z0-909 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Connectors and APIs | - Retrieve data from the database by using a connector - Demonstrate connector use, management and configuration - Choose between connectors for a given application - Secure credentials and connections - Handle special values |
| Query Optimization | - Rewrite queries for optimization - Analyze queries for optimization - Use indexes for optimization |
| Transactions | - Understand locking mechanisms within MySQL - Control transactions in applications - Resolve consistency problems with isolation levels - Control transactions in SQL |
| Data-driven Applications | - Aggregate and summarize data - Set SQL Modes to change MySQL behavior - Display query results - Use prepared statements - Handle and interpret errors and warnings - Advanced Report Generation |
| MySQL Schema Objects and Data | - Store and process temporal data - Store and process string data - Store and process numeric data - Design, create, and alter views - Store and process spatial data |
| JSON and Document Store | - Explain application development with NoSQL and XDevAPI - Process data in JSON documents - Create and store JSON documents - Create and access a document store - Use MySQL Shell to access document stores |
| MySQL Stored Programs | - Schedule database operations - Create and execute stored routines - Create and execute triggers - Explain the programming constructs used in stored routines |
Oracle 1Z0-909 Exam: What Candidates Ask
The Oracle MySQL 8.0 Database Developer is Oracle's certification exam for MySQL Developer, at the Professional level. It validates skills employers hire for, which is why it can affect your career and future. Related credentials include Oracle Certified Professional, MySQL 8.0 Database Developer.
Files arrive by automatic email within a minute of payment — unlimited installations, and 24/7 customer assisting for any login or downloading issues if nothing shows up within 2 hours. If you fail the corresponding 1Z0-909 exam within 60 days of purchase, you have options: a full refund (send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam; processed within 7 days), waiting for the next updated version free, or changing to two other equal-value dumps free. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products.
The Oracle MySQL 8.0 Database Developer blueprint covers 7 domains — including JSON and Document Store, MySQL Schema Objects and Data, Query Optimization. The weightings tell you where to spend your hours; the complete outline above lists every subtopic.
USD 245 (may vary by country) per attempt, 62% to pass. A retake bills the full fee again, so prepare smartly: work through the 66 practice questions for the 1Z0-909 exam at Actual4dump before you book.
90 minutes for 65 questions. Efficient preparation includes pacing: rehearse timed sets until the clock feels manageable, not menacing.
Yes — download the free Oracle MySQL 8.0 Database Developer demo and judge the quality before paying. Purchases include 365 days of free updates, with each latest version emailed to you immediately; renew afterward at 50% off.
Oracle MySQL 8.0 Database Developer Sample Questions:
Examine this statement and output:
Which will provide the same level of detail when the error is encountered within a stored routine?
- A.
- B.
- C.
- D.
Correct Answer: B 🗳️
Examine this bar graph based on columns from the players table:
Which two statements would generate this bar graph?
- A. SELECT Name, Gender, Sport, CHAR_LENGTH ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- B. SELECT Name, Gender, Sport, REPEAT('# 'Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- C. SELECT Name, Gender, Sport, CONCAT ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- D. SELECT Name, Gender, Sport, RPAD ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- E. SELECT Name, Gender, Sport, LENGTH (GPA*10, '# ') AS GPA_Graph FROM players ORDER BY GPA DESC;
Correct Answer: B,D 🗳️
Which change will prevent negative ages to be inserted into the people table?
- A. DELIMITER //
CREATE TRIGGER agecheck BEFORE INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER ; - B. ALTER TABLE people ADD CONSTRAINT check_age CHECK (ABS(age)>=0);
- C. ALTER TABLE people ADD COLUMN valid_age=ABS(check_age) GENERATED ALWAYS;
- D. DELIMITER //
CREATE TRIGGER age check AFTER INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER;
Correct Answer: B 🗳️
Examine the layout of the my_values table.
Examine the data in the my_value3 table.
Examine this statement:
A)
B)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Correct Answer: A 🗳️
Examine the statement which executes successfully:
SET sql_mode=' NO_ENGINE_SUBSTITTJTION' ;
You try to create a table with a storage engine that is not available. What will happen?
- A. An error occurs and the create table statement fails.
- B. The server will create the table using the default storage engine.
- C. The server will create the table but report an error when the first attempt to insert a row is performed.
- D. The server will create the table but it will be unusable until the specified storage engine is available.
Correct Answer: A 🗳️
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