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The Oracle 1z1-909 exam consists of 70 multiple-choice questions that need to be completed in 105 minutes. The questions are designed to test the candidate's knowledge in various areas, including data modeling, database design, SQL programming, database administration, and optimization. 1z1-909 exam is available in English and Japanese languages and can be taken at any authorized testing center or online.
Oracle 1Z0-909 exam is a valuable certification for professionals who seek to demonstrate their knowledge, skills, and problem-solving abilities in the MySQL database system. Certified individuals are likely to enjoy a wide range of job opportunities, including but not limited to database administrators, MySQL developers, and database analysts. Besides, the certification can provide opportunities for career advancement and salary growth.
Reference: https://education.oracle.com/mysql-80-database-developer/pexam_1Z0-909
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Oracle 1Z0-909 certification exam focuses on MySQL 8.0, which is the latest version of MySQL. 1z1-909 exam covers topics such as MySQL architecture, data types, SQL programming, security, performance tuning, and backup and recovery. MySQL 8.0 Database Developer certification exam consists of 70 multiple-choice questions, and the candidate has to score at least 65% to pass the exam.
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Oracle 1z1-909 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data-driven Applications | 15% | - Aggregate and summarize data - Handle errors, warnings and result sets - Set and use SQL Modes - Use prepared statements |
| Topic 2: Connectors and APIs | 15% | - Configure and manage connectors - Retrieve data using connectors - Handle special values and secure connections - Choose appropriate connectors for applications |
| Topic 3: MySQL Schema Objects and Data Types | 20% | - Work with numeric, string, temporal and spatial data types - Design, create and alter tables and views - Define constraints and indexes |
| Topic 4: Transactions and Concurrency | 15% | - Resolve consistency and concurrency issues - Control transactions in SQL and applications - Understand isolation levels and locking mechanisms |
| Topic 5: MySQL Stored Programs | 15% | - Create stored procedures and functions - Use programming constructs in routines - Implement triggers and events |
| Topic 6: JSON and Document Store | 15% | - Use XDevAPI and MySQL Shell for document store - Create and store JSON documents - Query and process JSON data |
| Topic 7: Query Optimization | 15% | - Rewrite queries for better performance - Analyze queries using EXPLAIN - Design and use indexes effectively |
