Oracle Certifications — OCI, AI/Data, Oracle DB, MySQL, SQL & Java Study Hubs

Oracle certifications span cloud infrastructure (OCI), AI/data platforms, database services, and developer skills (SQL and Java). The hubs below focus on what exams reward: blueprint-aligned objectives, decision-focused notes, and efficient practice loops.

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Each exam hub on this site follows a consistent flow:

• Overview: what’s tested and how to prepare
• Study Plan: 30/60/90‑day schedules
• Syllabus: learning objectives mapped to topics
• Cheatsheet: high-yield rules, configs, and decision tables
• Practice: drills and mixed sets (when available)
• FAQ & Resources: common questions and authoritative links

In this section

• 1Z0-071: Oracle Database SQL — Study Hub
  Blueprint-aligned 1Z0-071 prep: overview, objective-by-objective syllabus, a comprehensive Oracle SQL cheat sheet (joins, aggregation, subqueries, analytic functions), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1042-25: Oracle Cloud Infrastructure 2025 Application Integration Professional — Study Hub
  Blueprint-aligned 1Z0-1042-25 prep: overview, objective-by-objective syllabus, a high-yield application integration cheat sheet (API Gateway, events, functions, streaming), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1067-25: Oracle Cloud Infrastructure 2025 Cloud Ops Professional — Study Hub
  Blueprint-aligned 1Z0-1067-25 prep: overview, objective-by-objective syllabus, a high-yield cloud operations cheat sheet (monitoring, logging, automation), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1072-25: Oracle Cloud Infrastructure 2025 Architect Associate — Study Hub
  Blueprint-aligned 1Z0-1072-25 prep: overview, objective-by-objective syllabus, a comprehensive OCI architecture cheat sheet, 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1084-25: Oracle Cloud Infrastructure 2025 Developer Professional — Study Hub
  Blueprint-aligned 1Z0-1084-25 prep: overview, objective-by-objective syllabus, a comprehensive OCI developer cheat sheet (APIs/SDKs, Functions, events), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1085-25: Oracle Cloud Infrastructure 2025 Foundations Associate — Study Hub
  Blueprint-aligned 1Z0-1085-25 prep: overview, objective-by-objective syllabus, a high-yield OCI fundamentals cheat sheet, 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1093-25: Oracle AI Cloud Database Services 2025 Professional — Study Hub
  Blueprint-aligned 1Z0-1093-25 prep: overview, objective-by-objective syllabus, a comprehensive database services cheat sheet (Base DB, Exadata, MySQL, migration, ops), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1104-25: Oracle Cloud Infrastructure 2025 Security Professional — Study Hub
  Blueprint-aligned 1Z0-1104-25 prep: overview, objective-by-objective syllabus, a comprehensive OCI security cheat sheet (IAM, Vault/KMS, network security, Cloud Guard), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1109-25: Oracle Cloud Infrastructure 2025 DevOps Professional — Study Hub
  Blueprint-aligned 1Z0-1109-25 prep: overview, objective-by-objective syllabus, a comprehensive OCI DevOps cheat sheet (CI/CD, IaC, release strategies), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1110-25: Oracle Cloud Infrastructure 2025 Data Science Professional — Study Hub
  Blueprint-aligned 1Z0-1110-25 prep: overview, objective-by-objective syllabus, a high-yield OCI Data Science cheat sheet (projects, jobs, deployments, MLOps), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1111-25: Oracle Cloud Infrastructure 2025 Observability Professional — Study Hub
  Blueprint-aligned 1Z0-1111-25 prep: overview, objective-by-objective syllabus, a high-yield observability cheat sheet (metrics, logs, traces, APM), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1122-25: OCI 2025 AI Foundations Associate — Study Hub
  Blueprint-aligned 1Z0-1122-25 prep: overview, objective-by-objective syllabus, a high-yield AI fundamentals cheat sheet (ML + GenAI + responsible AI), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1123-25: Oracle Cloud Infrastructure 2025 Migration Architect Professional — Study Hub
  Blueprint-aligned 1Z0-1123-25 prep: overview, objective-by-objective syllabus, a high-yield migration cheat sheet (connectivity, data movement, cutovers), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1124-25: Oracle Cloud Infrastructure 2025 Networking Professional — Study Hub
  Blueprint-aligned 1Z0-1124-25 prep: overview, objective-by-objective syllabus, a high-yield OCI networking cheat sheet (VCN, DRG, routing, security), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1127-25: OCI 2025 Generative AI Professional — Study Hub
  Blueprint-aligned 1Z0-1127-25 prep: overview, objective-by-objective syllabus, a comprehensive GenAI cheat sheet (RAG, evaluation, safety, deployment), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1151-25: Oracle Cloud Infrastructure 2025 Multicloud Architect Professional — Study Hub
  Blueprint-aligned 1Z0-1151-25 prep: overview, objective-by-objective syllabus, a comprehensive multicloud cheat sheet (connectivity, federation, data placement), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-1195-25: Oracle Data Platform 2025 Foundations Associate — Study Hub
  Blueprint-aligned 1Z0-1195-25 prep: overview, objective-by-objective syllabus, a high-yield data platform cheat sheet (ingestion, lakes/warehouses, governance), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-829: Java SE 17 Developer — Study Hub
  Blueprint-aligned 1Z0-829 prep: overview, objective-by-objective syllabus, a high-yield Java SE 17 cheat sheet (language features, generics, streams, concurrency), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-830: Java SE 21 Developer Professional — Study Hub
  Blueprint-aligned 1Z0-830 prep: overview, objective-by-objective syllabus, a comprehensive Java SE 21 cheat sheet (OOP, generics, streams, concurrency), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-908: MySQL 8.0 Database Administrator — Study Hub
  Blueprint-aligned 1Z0-908 prep: overview, objective-by-objective syllabus, a high-yield MySQL 8.0 DBA cheat sheet (security, backups, replication, performance), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-909: MySQL 8.0 Database Developer — Study Hub
  Blueprint-aligned 1Z0-909 prep: overview, objective-by-objective syllabus, a high-yield MySQL 8.0 Developer cheat sheet (SQL, schema design, indexes, stored programs), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-931-25: Oracle AI Autonomous Database 2025 Professional — Study Hub
  Blueprint-aligned 1Z0-931-25 prep: overview, objective-by-objective syllabus, a comprehensive Autonomous Database cheat sheet (provisioning, security, performance, HA/DR), 30/60/90-day study plan, FAQs, resources, and practice.
• 1Z0-997-25: Oracle Cloud Infrastructure 2025 Architect Professional — Study Hub
  Blueprint-aligned 1Z0-997-25 prep: overview, objective-by-objective syllabus, an advanced OCI architecture cheat sheet (HA/DR, security, scale), 30/60/90-day study plan, FAQs, resources, and practice.