فقره مهمه من كتاب اوراكل Dba

GRATIANO

. . . As who should say “I am Sir Oracle,
And when I ope my lips, let no dog bark!”
—The Merchant of Venice, act 1, scene 1

BASSANIO
Gratiano speaks an infinite deal of nothing, more
than any man in all Venice.His reasons are as two
grains of wheat hid in two bushels of chaff: you
shall seek all day ere you find them . . .
—The Merchant of Venice, act 1, scene 1

How to Become an Oracle DBA
As you start out on your journey to become a proficient Oracle DBA, you have many sources of
information on the Oracle database:
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Introduction
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• Oracle Database 10g database administration classes, which have now been boiled down to
a pair of five-day long classes
• Oracle manuals—there’s an entire library of manuals available on the Oracle web sites
• Books from other publishers that impart various pieces of the knowledge required to
become an accomplished Oracle DBA
You’ll also need to acquire the necessary operating system knowledge. Most of the large Oracle
databases are based on the UNIX (or Linux) operating system, so you’ll need to have a reasonably
good understanding of UNIX. Again, you have many sources of information available. You can
attend a class or two from the leading UNIX system vendors, such as Hewlett-Packard and Sun
Microsystems, you can read the manuals, or you can buy some books. Microsoft Windows is
another popular operating system for Oracle databases, so you need to have a basic understanding
of the Windows Server operating system as well.
As many of the new entrants to the Oracle Database 10g field find out, the Oracle DBA world is
exhilarating, but alas, it’s also exhaustive in its reach and scope. It isn’t uncommon for DBAs to have
an entire shelf full of books, all explaining various facets of the DBA profession—modeling books,
UNIX texts, DBA handbooks, backup and recovery guides, performance-tuning manuals, and networking
and troubleshooting books. The amazing thing is, even after you run through the whole
gauntlet of courses and books, you aren’t really assured of being fully prepared to handle complex,
day-to-day database administration chores. There are many, many people who have taken all the
requisite classes to become an Oracle DBA who won’t or can’t be competent Oracle DBAs based
solely on their training. The reason? Refer back to that quotation from Shakespeare at the beginning
of this introduction: You need to separate the grain from the chaff, and all the coursework and manuals,
while excellent in their content, can serve to muddy the waters further.
The experienced Oracle DBA can find his or her way through this baffling amount of material,
but how’s the neophyte DBA to cope with the overwhelming amount of information? That’s where
this book comes in. This text will not only educate you in the theory and principles involved in
managing relational databases, it will also help you translate that theory into the useful, practical
knowledge that will enable you to manage real-life Oracle Database 10g databases with real-life
data and real-life issues.

from the book

Expert Oracle Database
10g Administration

by Sam R. Alapati