Oracle Database Administration for Microsoft SQL Server DBAs part 1 pdf

Oracle Database
Administration for
Microsoft
®
SQL Server
®
DBAs
Michelle Malcher
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This book is dedicated to all of the hard-working DBAs
who learn of ways to work smarter and then share
that information so that others can learn as well.
About the Author
Michelle Malcher is a Senior Database Administrator at DRW Holdings with
more than 12 years of experience in database development, design, and
administration. She has expertise in performance tuning, security, data
modeling, and database architecture of very large database environments.
She has administered environments supporting multiple database platforms,
including Oracle, SQL Server, and Sybase. As a DBA, she has strived to design,
implement, and maintain stable, reliable, and secure database environments
in order to support the business and important business processes.

Michelle enjoys contributing to the database technology user community
by speaking at conferences and being on the Independent Oracle User
Group (IOUG) Board of Directors as the Director of Education. She feels
that being able to learn from others and teach what you know are key ways
to enjoy working with databases. There is always something to learn and
challenge us to come up with better solutions.
About the Technical Editor
Kimberly Floss is a Manager of Database Services for a large Fortune
500 company. She has managed teams responsible for both database
administration and database engineering for Oracle, DB2, Teradata,
and SQL Server. She has been largely responsible for database/system
administration, general architecture, system performance monitoring,
tuning, backup and recovery, and capacity planning of hundreds of
database environments.
Kimberly is a former President of the Independent Oracle User Group
(IOUG) and has been a board member for six years. She currently serves
as a member of the Conference Committee for IOUG. She also serves on
the board for the North Central Teradata User Group and has served as a
content reviewer for the Professional Association of SQL Server (PASS).
She is a frequent speaker at conferences such as Oracle OpenWorld and
Collaborate.
Kimberly has a BS in Computer Information Systems from Purdue and an
MBA with emphasis in MIS from Loyola University. She teaches a Database
Applications and SQL Programming class at a local community college.
Contents
ACKNOWLEDGMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
1 The Database Administrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General DBA Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Where Do DBAs Belong in an Organization? . . . . . . . . . . . . . . . 4

Database Installation Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Leveraging Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Database Migrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 Oracle Internals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Memory Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Oracle Memory Parameters . . . . . . . . . . . . . . . . . . . . . . . . 17
Sizing the SGA and PGA . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Where Are the master, msdb, and tempdb Databases? . . . . . . . . . 22
System-level Information . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Data Dictionary Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Jobs and Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Templates and Temporary Tables . . . . . . . . . . . . . . . . . . . 28
Services and Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
sp_configure Options and Parameters . . . . . . . . . . . . . . . . . . . . . 32
Viewing and Setting Parameters . . . . . . . . . . . . . . . . . . . . . 33
Getting Started with Some Parameters . . . . . . . . . . . . . . . . 34
Undo, Redo, and Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Transaction Logs Versus Redo Logs . . . . . . . . . . . . . . . . . . 38
Undo and Beyond . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
v