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2. Oracle-12c
This course is ideal for Database Administrators of small to
medium sized businesses. This Oracle Database 12c: Fundamentals for
Developers and System Administrators course helps you perform basic
Oracle Database 12c administration tasks needed to keep the database
operational.
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3. Oracle 12C DBA Topics
• Relational Database Model and Installing Oracle database software
(12c R1)
• Oracle Database Architecture
• Database storage
• Oracle Networking
• User Administration and Security
• Used Managed (Manual) Backup and Recovery
• RMAN Backup and Recovery
• Oracle database upgrades
• Oracle 12c New Features: Multitenant Architecture
• Oracle Data Movement Utilities
• Oracle Database Performance Tuning
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5. New features of oracle-12c
Pluggable Databases Through Database Consolidation:
Oracle is doing every thing to jump into the cloud bandwagon. With
12C, Oracle is trying to address the problem of Multitenancy through this
feature. There is a radical change and a major change in the core database
architecture through the introduction of Container Databases also called CBD
and Pluggable Databases (PDB).
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6. Redaction Policy:
This is one of the top features in Oracle 12C. Data Redaction in
simple terms means, masking of data. You can setup a Data Redaction policy,
for example SSN field in a Employee table can be masked. This is called
redaction.
Top N Query and Fetch and offset Replacement to Rownum:
With the release of Oracle Database 12c, Oracle has introduced this
new SQL syntax to simplify fetching the first few rows. The new sql syntax
"Fetch First X Rows only" can be used
Adaptive Query Optimization and Online Stats Gathering:
With this feature, it helps the optimizer to make runtime
adjustments to execution plan which leads to better stats. For statements like
CTAS (Create Table As Select) and IAS (Insert As Select), the stats is gathered
online so that it is available immediately.
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7. Restore a Table easily through RMAN:
Earlier if you had to restore a particular table, you had to do all sorts of
things like restoring a table space and or do Export and Import. The new restore
command in RMAN simplifies this task.
Size Limit on Varchar2, NVarchar2, Raw Data Types increased:
The previous limit on these data types was 4K. In 12C, it has been
increased to 32,767 bytes. Upto 4K, the data is stored inline. I am sure everyone
will be happy with this small and cute enhancement.
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8. Data base storage
Overview
• Oracle Automatic Storage Management simplifies the relationship between
database and storage to ensure the best I/O performance for database
workloads while significantly reducing storage costs and complexity
• Oracle Partitioning enhances database manageability, performance, and
availability for a wide variety of applications by allowing tables, indexes, and
index-organized tables to be subdivided into smaller pieces and managed
cost-effectively on different tiers of storage to improve access performance
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9. • Oracle Advanced Compression helps businesses manage data growth more cost-
effectively by automating data-management processes that maximize resource
utilization with compression rates of 2-4x across all types of data and applications to
save disk space and improve query performance
• Oracle Hybrid Columnar Compression differentiates Oracle Exadata Database
Machine and Oracle SAN and NAS storage systems by reducing the size of data
warehousing tables by 10x, and archive tables by 15x, improving performance and
reducing storage costs for primary, standby, and backup databases
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10. Benefits
• Manage storage more efficiently
• Reduce overall storage costs
• Optimize storage performance
• Protect against data loss
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11. Oracle Virtual Networking
Oracle Virtual Networking products virtualize your SAN and
LAN infrastructure by defining connectivity in software, giving
you the flexibility and agility you need for the cloud. By
consolidating your SPARC and x86 systems into a single data
center fabric, you can reduce infrastructure complexity by up to
70% and cut OPEX by up to 50%.
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12. Ethernet Networking
• Oracle's Sun Ethernet line of networking solutions deliver
Ethernet fabric and connectivity between Oracle's Sun servers,
storage, and applications for the convergence and high performance
required in the virtualized data center.
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13. InfiniBand Networking
• Oracle's InfiniBand network solutions deliver the application
isolation and elasticity you need to consolidate and virtualize
enterprise business applications and cloud computing
infrastructures.
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14. Storage Networking
• For enterprise customers looking for superior I/O
connectivity, Oracle's storage networking solutions offer some of the
fastest, most cost-efficient host bus adapters, switches, directors,
and routers on the market today.
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15. Backup and Recovery with RMAN
As noted earlier, using RMAN gives you access to several data backup and
recovery techniques and features not available at all with user-managed backup
and recovery. The most noteworthy are:
• Incremental backups, which provide more compact backups (storing only
changed blocks) and faster data file media recovery (reducing the need to
apply redo during data file media recovery)
• Block media recovery, in which a data file with only a small number of corrupt
data blocks can be repaired without being taken offline or restored from
backup
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16. • Unused block compression, where RMAN can in some cases skip unused
datafile blocks during backups
• Binary compression, which uses a compression mechanism integrated
into the Oracle database server to reduce the size of backups
• Encrypted backups, which uses encryption capabilities integrated into the
Oracle database to store backups in an encrypted format
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17. Files That RMAN Can Back Up
RMAN can back up all database files needed for efficient recovery
in the event of a failure. RMAN supports backing up the following
types of files:
• Data files, and image copies of data files
• Control files, and image copies of control files
• Archived redo logs
• The current server parameter file
• Backup pieces, containing other backups created by RMAN
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18. For More Info Visit:
www.quontrasolutions.com
Thank u
Reader’s
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