Oracle Core DBA

Oracle Core DBA


    Oracle Core DBA Course Content:


    • Types of Databases.
    • Duties of a DBA, Classifications of DBA.
    • Oracle Versioning and versions history
    • Grid ? Advantages of Grid Computing.
    • What is Instance? What is Database? What is Database Server?
    • Users the DBA interacts with.
    • Supported OS.
    • Introduction to Linux OS.
    • Linux File Layout structure.

    2.Installation of Linux OS

    • OS Users.
    • Installation process.
    • Disk layout.
    • Different mount points used by oracle.
    • Swap Area.
    • Creation of User groups.
    • Oracle needed file layout.

    3.Installation of Oracle Software

    • Fulfilling prerequisites for installation.
    • Setting up environment.
    • Installation.
    • Post Installation scripts.
    • Changes done to the OS files after installation is complete./etc directory, /home/oracle directory, global inventory, oracle home.

    4.Database Creation

    • Database files introduction.
    • Table spaces and Schemas.
    • Control files introduction.
    • PFile Introduction, Creation and default parameters(10g/11g).
    • Instance States.
    • Database Creation Manually and Using DBCA.

    5.Background processes and Different stages of Database

    • Instance Start, Mount and Open states.
    • Dynamic views related to database.
    • Oracle memory layout.
    • Background processes.
    • Instance states more detailed.
    • How to look for background processes.

    6.Database objects and Tablespaces

    • Introducing putty and VNC server(How it works in realtime environment).
    • Sys owned objects.
    • Data Dictionary.
    • User Created objects.
    • Sys Tablespaces.
    • User Tablespaces.
    • Dictionary Managed Tablespace, Locally managed tablespace.
    • Bigfile tablespace.
    • Managing tablespaces.
    • Managing datafiles.
    • Datafiles layout, Internal organization.
    • Tables and Fragmentation.

    7.Threads and Redo log groups

    • Archive log, No Archive log.
    • Threads and Groups concepts.
    • Multiplexing Redo logs.
    • Log switching.
    • Different stages of Log files.
    • Processes related to online Redo logs.
    • Adding Threads, Groups.
    • Dropping Threads, Groups.

    8.Oracle Memory architectureDifferent components of memory(10g/11g)

    • Dedicated Server and Shared Server.
    • SGA and PGA, Differences between them.
    • Different Stages of a query.
    • Parsing: Hard parsing and Soft parsing.
    • Different stages during an update statement.
    • Checkpointing
    • Indexes
    • Different types of Indexes.
    • B-Trees.
    • Creation.
    • Views related to indexes.
    • Index reorganization.
    • Statistics collection on indexes.

    9.Networking and Remote ConnectionsTNS

    • Listeners.
    • Listener.ora file.
    • Tnsnames.ora file.

    10.Views and Materialized views

    • Types of views.
    • Creation.
    • Database links.
    • Materialized views.
    • Refreshing materialized views.
    • Processes related to materialized views.
    • Problems with materialized views refresh.

    11.Users, Privileges, Roles and Responsibilities

    • Security and Passwords(10g/11g).
    • User Creation.
    • Creating Roles.
    • Assigning Privileges, Roles and Responsibilities.
    • Dropping users.
    • Revoking privileges.
    • Password file. Remote sys connect.

    12.Pfile and spfile

    • Types of parameters(static and dynamic).
    • Managing spfile.
    • Creating pfile from spfile and vice versa.
    • Changing parameters dynamically.

    13.Control files

    • Multiplexing.
    • Details stored in control files.
    • Creating, Backing up and Recreating control files.
    • Scenarios when a control file needs to be created.
    • Changing the Instance name and Database name


    • Types of Failures.
    • Types of backups.
    • Logical Backups using ImpDP, ExpDP(Data Pump).
    • Transportable tablespaces.
    • Physical backups.
    • Cold Backups and Hot Backups.
    • Generation of redo during hot backups. Fuzzy blocks.


    • Complete recovery using cold backups.
    • Complete recovery using hot backups.
    • Partial recovery using cold backups.
    • Partial recovery using hot backups.
    • Different scenarios in performing recoveries.
    • UNNAMED datafiles during recovery.

    16.Cloning Databases

    • Cold cloning.
    • Hot cloning.


    • RMAN tool introduction.
    • Catalog mode No-Catalog mode.
    • Configurations of RMAN.
    • Hot backups using RMAN.
    • Backing up Databases, Archivelogs and Controlfiles.
    • Channels and Multiple copies.
    • Tuning RMAN backups process.
    • Retention policies.
    • Incremental backups, Cumulative backups.


    • Restoration using RMAN.
    • Recovery using RMAN.
    • Cloning databases using RMAN.
    • Migrating databases using RMAN.
    • Restoration from Incremental Backups and Cumulative Backups.

    19.Automatic Storage Management(ASM)

    • Striping and Mirroring.
    • RAID concepts.
    • ASM concepts and file systems.
    • Background processes used by ASM.
    • CSS daemon.
    • Creating Disk groups and Redundancy.
    • RMAN backups in ASM.
    • Migrating a NON-ASM database to ASM.
    • Rebalancing.
    • ASMCMD command-line tool.
    • md_backup and md_restore.

    20.Patching and Upgrades

    • Patches and Patch sets.
    • Upgrading within releases.

    21.Database Migrations between releases

    • Migration from 10g to 11g.

    22.Data Guard

    • Standby databases.
    • Physical Standby databases and Logical Standby databases.
    • Different modes of Protection and Availability.
    • Creating Standby databases.
    • Managing Databases in a Data Guard Environment.
    • Switchover and Failover.
    • Data Guard Broker.

    23.Performance Tuning

    • Categories of tuning.
    • Areas of tuning.
    • SQL Tuning.
    • Memory Tuning.
    • Disk I/O tuning.
    • Tools used for tuning.
    • Waits and Contention.
    • Latches and Spins.
    • Locks and Lock Resolution.
    • AWR reports, ADDM reports.
    • Oracle Database Replay.

    24.Oracle Enterprise Manager and Grid Control

    • Maintaining everything for OEM.
    • RMAN from OEM.
    • Data Guard from OEM.
    • AWR Reports and ADDM.
    • Tuning from OEM.

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