MySQL 8.0 Database Developer

1Z0-909

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Question Types
Multiple choiceFill in the blankDiagramsCase studies

What's Included

200
Practice Questions
1
Exam Versions
1
Languages
Translation Beta
Nov 10, 2025
Updated

Complete Exam Package

200 1Z0-909 practice questions with detailed explanations

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Study Mode, Timed Practice, and Flashcard Review

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Exam Details

Duration90 min
Passing Score62%
Languages English
LevelProfessional
TestingPearson VUE
Valid ForLifetime (does not expire)

What topics are on the 1Z0-909 exam?

1

Connectors and APIs

1.1
Choose between connectors for a given application
1 subtopics
1.1.1Connector Selection
Learning Objectives
  • Evaluate application requirements to select appropriate MySQL connector
  • Understand capabilities of different MySQL connectors
1.2
Demonstrate connector use, management and configuration
1 subtopics
1.2.1Connector Configuration
Learning Objectives
  • Configure MySQL connectors for optimal performance
  • Manage connector resources effectively
1.3
Retrieve data from the database by using a connector
1 subtopics
1.3.1Data Retrieval
Learning Objectives
  • Implement efficient data retrieval using MySQL connectors
  • Handle various data types returned from queries
1.4
Handle special values
1 subtopics
1.4.1Special Value Handling
Learning Objectives
  • Properly handle NULL and special data values
  • Work with binary and JSON data through connectors
1.5
Secure credentials and connections
1 subtopics
1.5.1Connection Security
Learning Objectives
  • Implement secure database connections
  • Manage credentials securely in applications
Domain Hands-on Skills
Configure and use MySQL connectorsImplement secure database connectionsHandle various data types through connectors
Common Mistakes to Avoid
  • Not closing database connections properly
  • Hardcoding credentials in application code
  • Inefficient result set handling
2

Data-driven Applications

3

MySQL Schema Objects and Data

4

Transactions

5

Query Optimization

6

MySQL Stored Programs

7

JSON and Document Store

How do I earn the MySQL 8.0 Database Developer certification?

Official Pathway Guidance

Track: MySQL Developer

Prerequisites

  • Optional
    Recommended to have practical experience with MySQL and database development

Next Steps

  • No higher-level MySQL developer certification availableMySQL 8.0 Database Developer is a professional-level certification

Related Certifications

  • MySQL 8.0 Database Administrator Oracle Certified Professional1Z0-908

    Complementary - focuses on administration vs development

Career Paths & Salaries

Certification Maintenance

  • Recertification Options:
    No recertification required - Oracle Certified Professional credentials do not expire

How do I study for the 1Z0-909 Exam?

Practice the MySQL 8.0 Database Developer with our Exam Simulator

Free practice questions, exam guides, and real exam‑style explanations in our Planet Cert simulator.

Official Training

Become a MySQL 8.0 Database Developer ProfessionalOracle UniversityOracle Technology Learning SubscriptionOracle University

Official Documentation

MySQL 8.0 Reference ManualOracleMySQL Connector DocumentationOracleMySQL TutorialOracleMySQL Developer ZoneOracle

Community Resources

MySQL ForumsOracleMySQL Bugs DatabaseOracleStack Overflow - MySQL TagStack Overflow

Hands-on Labs

MySQL 8.0 LabsOracle Learning LibraryMySQL SandboxSelf-hosted

Study Tips

  • Focus on hands-on practice with MySQL 8.0.18 or later
  • Understand the differences between MySQL 5.x and 8.0 features
  • Practice with all major MySQL connectors (especially Connector/J and Connector/Python)
  • Master JSON data type operations and document store concepts
  • Practice transaction management and isolation levels thoroughly
  • Understand query optimization using EXPLAIN and Performance Schema
  • Be comfortable writing stored procedures, functions, triggers, and events
  • Know the differences between InnoDB and other storage engines
  • Practice spatial data operations if not familiar with GIS
  • Review all official MySQL 8.0 documentation, especially new features

What's changed on this exam?

Status: ACTIVE

Technology Coverage

MySQL 8.0 JSON Features8.0.x

JSON operations are a major exam topic - stay current with new JSON functions

Released: Ongoing updates
MySQL Document Store8.0.x

Entire domain dedicated to document store and XDevAPI

Released: Available in MySQL 8.0
MySQL Performance Schema8.0.x

Important for query optimization topics

Released: Enhanced in 8.0
MySQL InnoDB Enhancements8.0.x

Critical for understanding transactions and locking

Released: 8.0 series

Industry Trends

Who should take this exam?

Recommended Experience

  • Familiarity with MySQL database fundamentals
  • Experience with SQL programming
  • Understanding of database application development
  • Knowledge of at least one programming language (Java, Python, C++, etc.)
  • Hands-on experience with MySQL 8.0

Experience Level: Intermediate

How do I register & what's the exam fee?

Exam Cost$[object Object] USD
Testing CentersPearson VUE
Online ProctoringAvailable

How long is the certification valid?

Valid ForLifetime (does not expire)
Recertification
  • Not required - Oracle Certified Professional certifications do not expire

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