| Data Guard, redo/undo logs, users | db/admin/ |
| Safe DML, destructive operation guards, idempotency, schema discovery, ORA- error handling | db/agent/ |
| JDBC, pooling, JSON, XML, spatial, Oracle Text, transactions, MLE, language drivers | db/appdev/ |
| RAC, Multitenant, Exadata, In-Memory, OCI database services, Data Guard architecture | db/architecture/ |
| Backup, recovery, RMAN, Autonomous Recovery Service, Cloud Protect | db/backup-recovery/ |
| OCR database-category container images and pull guidance | db/containers/ |
| ERD, data modeling, partitioning, tablespaces | db/design/ |
| Schema migrations, online operations, edition-based redefinition, testing, version control | db/devops/ |
| AQ, DBMS_SCHEDULER, materialized views, DBLinks, APEX, vector search, SELECT AI | db/features/ |
| SQLAlchemy, Django, Pandas, Spring JPA, MyBatis, TypeORM, Sequelize, Dapper, GORM | db/frameworks/ |
| Migrations from PostgreSQL, MySQL, SQL Server, MongoDB, Snowflake, and more | db/migrations/ |
| Alert log, ADR, health monitor, space management, top SQL | db/monitoring/ |
| ORDS architecture, installation, REST design, authentication, monitoring, ORDS Concert Sample App | db/ords/ |
| AWR, ASH, explain plan, indexes, optimizer stats, wait events, memory | db/performance/ |
| Package design, error handling, performance, collections, cursors, debugging | db/plsql/ |
| Privileges, VPD, masking, auditing, encryption, network security | db/security/ |
| SQL tuning, SQL patterns, dynamic SQL, injection avoidance | db/sql-dev/ |
| SQLcl basics, scripting, Liquibase, formatting, DDL generation, data loading, MCP server, scheduler daemon, AWR, background jobs, schema comparison with DIFF | db/sqlcl/ |
