Latest version released? It's already in your email. ValidVCE sends Oracle MySQL 8.0 Database Developer updates promptly — 66 practice questions for the 1Z0-909 exam, free for 365 days.
Oracle 1Z0-909 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | MySQL 8.0 Database Developer |
| Exam Number: | 1Z0-909 |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple Choice Questions (MCQ) |
| Related Certifications: | Oracle Certified Professional, MySQL 8.0 Database Developer |
| Available Languages: | English |
| Passing Score: | 62% |
| Exam Price: | USD 245 (may vary by country) |
| Real Exam Qty: | 65 |
| Sample Questions: |  |
| 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 |
|---|---|
| Topic 1: Connectors and APIs | - Demonstrate connector use, management and configuration - Retrieve data from the database by using a connector - Choose between connectors for a given application - Handle special values - Secure credentials and connections |
| Topic 2: Query Optimization | - Analyze queries for optimization - Rewrite queries for optimization - Use indexes for optimization |
| Topic 3: Transactions | - Control transactions in SQL - Understand locking mechanisms within MySQL - Resolve consistency problems with isolation levels - Control transactions in applications |
| Topic 4: JSON and Document Store | - Create and store JSON documents - Use MySQL Shell to access document stores - Process data in JSON documents - Create and access a document store - Explain application development with NoSQL and XDevAPI |
| Topic 5: MySQL Schema Objects and Data | - Store and process spatial data - Store and process temporal data - Store and process numeric data - Design, create, and alter views - Store and process string data |
| Topic 6: Data-driven Applications | - Aggregate and summarize data - Set SQL Modes to change MySQL behavior - Handle and interpret errors and warnings - Display query results - Use prepared statements - Advanced Report Generation |
| Topic 7: MySQL Stored Programs | - Explain the programming constructs used in stored routines - Schedule database operations - Create and execute triggers - Create and execute stored routines |
Oracle 1Z0-909 Exam: FAQ for Busy Professionals
Yes — download the free Oracle MySQL 8.0 Database Developer demo and inspect the material before buying. Purchases include the right of free updating for 365 days, with latest versions emailed promptly upon release; renew afterward at 50% off.
USD 245 (may vary by country) per attempt, 62% to pass. For busy professionals, one prepared attempt beats two rushed ones — work through the 66 practice questions for the 1Z0-909 exam at ValidVCE first.
The Oracle MySQL 8.0 Database Developer blueprint covers 7 domains — including Data-driven Applications, MySQL Schema Objects and Data, MySQL Stored Programs. Budget your limited hours by weighting; the complete outline above lists every subtopic.
The Oracle MySQL 8.0 Database Developer is Oracle's certification exam for MySQL Developer, at the Professional level. It's among the most authoritative credentials in the field — for those aiming at Oracle careers, it's the first step. Related credentials include Oracle Certified Professional, MySQL 8.0 Database Developer.
Files arrive by automatic email within a minute of payment — unlimited devices, and 24/7 customer assisting if nothing shows up within 2 hours (check spam). Need an invoice? Email us your company name for a custom invoice made to your demand. If you fail the corresponding 1Z0-909 exam within 60 days of purchase, we process a full refund within 7 days — send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Alternatively, exchange for two equal-value products free.
90 minutes for 65 questions. Time-pressed candidates should rehearse the clock: short timed sets on busy days, full simulations on free ones.
Oracle MySQL 8.0 Database Developer Sample Questions:
Examine this statement and output:
Which is true?
- A. myview was defined with the temptable processing algorithm.
- B. myview cannot be automatically indexed.
- C. The underlying table's index on the Name column is not chosen because of low selectivity.
- D. Column Name in myview can be indexed if the is_updatable attribute is true.
Correct Answer: A 🗳️
Which two statements are true about aggregate functions?
- A. MIN () cannot use distinct when it executes as a Windows function.
- B. AVG () does not allow use of the distinct option.
- C. SUM () returns o if there are no rows to aggregate.
- D. COUNT (distinct) returns a count of the number of rows with different values including Null.
- E. MAX () returns null if there are no rows to aggregate.
Correct Answer: B 🗳️
You must reclaim memory used by a prepared statement named prep. Which two achieve this?
- A. PREPARE prep FROM '';
- B. DROP PREPARE prep;
- C. DEALLOCATE PREPARE prep?
- D. DROP PROCEDURE prep;
- E. SET @prep = NULL;
- F. SET @a = ''; EXECUTE prep USING @a;
Correct Answer: D,E 🗳️
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 these commands which execute successfully:
mYsql> CREATE TABLE income (acct_num INT, amount DECIMAL(10,2));
mysql> CREATE TRIGGER subtotal BEFORE INSERT ON income
FOR EACH ROW SET @subtotal = subtotal + NEW.amount;
Which is true for the income table?
- A. The trigger activates after any row in the table has been updated.
- B. The trigger activates after any row has been inserted into the table.
- C. Execution of an insert statement causes the trigger to activate.
- D. The trigger body set causes trigger activation.
Correct Answer: C 🗳️
Jane 
Harvey 
Newman 
Algernon 
Ahern 
Nathaniel 
Joy 
Arlene 
Geoff 
Wythe 
Burgess 
Zoe 
Warner 
Harold 
Bertram 
Daisy 
Jay 
Antonia 
Claude 
Virgil 
Alexia 
Kent 
Neil 
