Oracle Database 19c Administration | Workshop Student Guide Pdf
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❌ Mistake 2: Ignoring the “Try It Yourself” lab scripts
Many learners skip the labs because they don’t have a 19c environment. Critical error – you can run a pre‑built VirtualBox appliance (free from Oracle) or use Oracle Live SQL (free, but limited). The PDF’s lab scripts are the difference between passing and failing the hands‑on section of the OCP. ❌ Mistake 2: Ignoring the “Try It Yourself”
1. Not a Standalone Reference
- It assumes you attend class or have an instructor. Many labs say “Ask your instructor for the /home/oracle/labs directory” – without those lab scripts, some exercises cannot be completed.
- No answer key for quiz questions (instructor edition contains answers).
10. Performing Backups with RMAN — Examples
- Start RMAN and connect:
- rman target / (or rman target sys/password@orcl)
- Configure retention and channels:
- RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 2;
- RMAN> CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/backup/%d_%U';
- Full backup example:
- RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
- Incremental example (Level 1 cumulative):
- RMAN> BACKUP INCREMENTAL LEVEL 1 DATABASE;
- Backup controlfile and spfile:
- RMAN> BACKUP CURRENT CONTROLFILE;
- RMAN> BACKUP SPFILE;
- Restore example flow (lost datafile):
- RMAN> RESTORE DATAFILE '/u01/oradata/orcl/users01.dbf';
- RMAN> RECOVER DATAFILE '/u01/oradata/orcl/users01.dbf';
- SQL> ALTER DATABASE DATAFILE '/u01/oradata/orcl/users01.dbf' ONLINE;
Oracle Database 19c: Administration I (Focus: Basics & Architecture)
- Exploring the Oracle Database Architecture: Memory structures (SGA, PGA), background processes (SMON, PMON, DBWn, LGWR), and logical/physical storage structures.
- Installing Oracle 19c Software: Silent installs, Oracle Home, Oracle Base, and Optimal Flexible Architecture (OFA).
- Creating a Database with DBCA: Using the Database Configuration Assistant (DBCA) for both file system and Oracle Automatic Storage Management (ASM).
- Managing Database Instances: Starting and shutting down instances, initialization parameters, and dynamic performance views (V$ views).
- Managing Storage: Tablespaces, data files, temp files, undo management.
- Managing Users & Security: Creating and maintaining user accounts, roles, privileges, and profiles.
- Implementing Auditing: Unified auditing in 19c (mandatory for multitenant).
- Concurrency & Locking: Understanding transactions, isolation levels, and deadlock detection.
- Backup & Recovery Concepts: Physical vs. logical backups, archivelog mode vs. noarchivelog mode.