ORACLE DBA ONLINE TRAINING
ORACLE DBA INTRODUCTION: Undo Introduction offline status Pending Rollback segments Features of Flashback Flashback Table Flashback query Flashback Version query
ORACLE DBA Database storage: Table spaces and allocation types. Create table spaces. Create data files with fixed size and auto extend option. Control files and producing a trace output to view its contents. How to rename data files in a control file. Redo log File architecture and best practices.
ORACLE DBA ď‚— This illustrates that like most industry buzzwords, Big
is a cynical spin on what should more often be called awkward. A billion rows of normalized data in a welldesigned schema might be large, but it's hard to see a big pay packet coming from running an aggregate function like Average on it. To be a lucrative skill there has to be some pain that you can overcome for your patient employer.
ORACLE DBA YOU know how the Fat Controller (yes, it’s called that at one bank) sucks in data and no one else does, not well enough that they’d ever dare lose you. That’s good until the day that some jerk whispers Hadoop into the ear of your CIO. Then what you have are non-portable skills that can only be used in one firm which is phasing them out. This is so bad that you must be that jerk. It's better to be leading the charge than be ridden over and even if the project goes tits up, Hadoop is a pretty good word to have on your CV.
ORACLE DBA
ORACLE DBA ď‚— Database Administrators (DBAs) are responsible for the design,
implementation, support and maintenance of computerized databases in today's organizations. The role also includes architecting, building and scaling databases for future data growth and capacity. They are also responsible for security, performance and availability of data to users and customers. .
ď‚— All the above tasks are performed with the help of a Database Management
System (DBMS) and the leading and most widely used DBMS across the world today are the Oracle Database, Microsoft SQL Server, My SQL database etc. Out of the three DBMS technologies, Oracle Database is the most popular and widely used database in the world today.
ORACLE DBA
ORACLE DBA Each database requires at least one database administrator (DBA) to administer it. Because an Oracle database system can be large and can have many users, often this is not a one person job. In such cases, there is a group of DBAs who share responsibility.
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