ORACLE CORE DBA ONLINE TRAINING

Introduction

As business operations become more complex, the demand for change in IT increases accordingly, as do the associated risks that must be mitigated. Todays IT professionals are asked to manage more information and deliver it to their users, with ever-increasing quality of service, in a timely manner. And in todays economic climate, IT must also reduce budgets and derive greater value out of existing investments.

Oracle Database 11g Release 2, the latest release of the award-winning Oracle Database 11g, enables IT professionals to deliver more information with higher quality of service, make more-efficient use of their budgets, and reduce the risk of change in datacenters. By deploying Oracle Database 11g Release 2 as their data management foundation, organizations can utilize the full power of the worlds leading database to

• -->Reduce server costs by a factor of 5
• -->Reduce storage requirements by a factor of 10
• -->Improve mission-critical system performance by a factor of 10
• -->Increase DBA and developer productivity by a factor of 2
• -->Maximize availability and eliminate idle redundancy
• -->Maximize security and enable compliance
• -->Simplify their overall IT software portfolio

Oracle Database Appliance

The Oracle Database Appliance is a new way to take advantage of the world’s most popular database Oracle Database 11g in a single, easy-to-deploy and manage system. It’s a complete package of software, server, storage, and networking that’s engineered for simplicity; saving time and money by simplifying deployment, maintenance, and support of database workloads.

A fully integrated and redundant system of software, servers, storage and networking in a single box that delivers high-availability database services for a wide range of homegrown and packaged online transaction processing (OLTP) and data warehousing applications Saves up to 2000 hours of labor over a three year period with simple deployment, maintenance, and support of database workloads, all supported by a single vendor Oracle Pay-As-You-Grow software licensing allows you to quickly scale from 2 processor cores to 24 processor cores without incurring the costs and downtime usually associated with hardware upgrades Allows businesses to consolidate OLTP and data warehousing databases up to 4 terabytes in size, making it ideal for midsize companies and departmental systems

An Oracle core database as nothing more than a large electronic filing cabinet, a place to store and retrieve information. At the computer level, Oracle is a computer program that manages an electronic filing cabinet.

Oracle Platform Concepts

One reason that Oracle has become the world dominant database is because it runs on just about every platform imaginable, from a mainframe to a Macintosh.

Today, most shops run Oracle in UNIX, Linux, and Windows.

Oracle runs on almost every computer ever made, with over 60 diverse platforms such as Intel (like your PC does), Sun Solaris, old IBM mainframes, and many, many others.

Conceptually, Oracle is considered the worlds most powerful, flexible and robust database. Along with this power comes complexity.

Oracle flexibility concepts database and it stores much more than text and numbers. An Oracle database support video, audio and complex spatial applications that are used to build jet fighters and submarines.

Unlike simpler databases, you can control every aspect of Oracles behavior. You can control how rows are placed on the data blocks and you can control how Oracle performs hundreds of resource management issues.

Oracle Database 11g helps customers lower IT costs and deliver a higher quality of service by enabling consolidation onto database clouds and engineered systems like Oracle Exadata and Oracle Database Appliance. It’s proven to be fast, reliable, secure and easy to manage for all types of database workloads including enterprise applications, data warehouses and big data analysis.

Feature

Simplifies deployment, maintenance, and support of high-availability database workloads

An engineered system of software, server, storage, and networking Simple one-button Installation, full-stack integrated patching and diagnostics Built using the worlds #1 database Unique Pay-As-You-Grow software licensing

Benefit

Saves significant time and effort throughout the database administration lifecycle High availability for a wide range of custom and packaged OLTP and data warehousing application databases Reduces planned and unplanned downtime by automatically monitoring and logging service requests with Oracle Support Protects databases from server and storage failures with Oracle Real Application Clusters and Automatic Storage Management Reduces cost with flexibility to adjust your software spend as your business grows without the need for any hardware upgrades

Oracle Core DBA Responsibilities

• (1) Creates and maintains all databases required for development, testing, education and production usage.
• (2) Performs the capacity planning required to create and maintain the databases. The DBA works closely with system administration staff because computers often have applications or tools on them in addition to the Oracle Databases.
• (3) Performs ongoing tuning of the database instances.
• (4) Install new versions of the Oracle RDBMS and its tools and any other tools that access the Oracle database.
• (5) Plans and implements backup and recovery of the Oracle database.
• (6) Controls migrations of programs, database changes, reference data changes and menu changes through the development life cycle.
• (7) Implements and enforces security for all of the Oracle Databases.
• (8) Performs database re-organisations as required to assist performance and ensure maximum uptime of the database.
• (9) Puts standards in place to ensure that all application design and code is produced with proper integrity, security and performance. The DBA will perform reviews on the design and code frequently to ensure the site standards are being adhered to.
• (10) Evaluates releases of Oracle and its tools, and third party products to ensure that the site is running the products that are most appropriate. Planning is also performed by the DBA, along with the application developers and System administrators, to ensure that any new product usage or release upgrade takes place with minimal impact.
• (11) Provides technical support to application development teams. This is usually in the form of a help desk. The DBA is usually the point of contact for Oracle Corporation.
• (12) Enforces and maintains database constraints to ensure integrity of the database.
• (13) Administers all database objects, including tables, clusters, indexes, views, sequences, packages and procedures.
• (14) Assists with impact analysis of any changes made to the database objects.
• (15) Troubleshoots with problems regarding the databases, applications and development tools.
• (16) Create new database users as required.
• (17) Manage sharing of resources amongst applications.
• (18) The DBA has ultimate responsibility for the physical database design.