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Summary Oracle Database 11g DBA Handbook

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TEMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 UNDOTBS1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 USERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 EXAMPLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Segment Segregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4 Physical Database Layouts and Storage Management . . . . . . . . . . . . . . . . . . . . . . . . . 75 Traditional Disk Space Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Resizing Tablespaces and Datafiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Moving Datafiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Moving Online Redo Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Moving Control Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Automatic Storage Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 ASM Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Creating an ASM Instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 ASM Instance Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 ASM Dynamic Performance Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 ASM Filename Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 ASM File Types and Templates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Administering ASM Disk Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 PART II Database Management 5 Developing and Implementing Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Tuning by Design: Best Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Do As Little As Possible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Do It As Simply As Possible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Tell the Database What It Needs to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Maximize the Throughput in the Environment . . . . . . . . . . . . . . . . . . . . . . . . . 129 Divide and Conquer Your Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Test Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Standard Deliverables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Resource Management and Stored Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Implementing the Database Resource Manager . . . . . . . . . . . . . . . . . . . . . . . . 136 Implementing Stored Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Sizing Database Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Using Temporary Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Supporting Tables Based on Abstract Datatypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Using Object Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Security for Abstract Datatypes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Indexing Abstract Datatype Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Quiescing and Suspending the Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Supporting Iterative Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Iterative Column Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Forcing Cursor Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Managing Package Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Generating Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

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, ®




Oracle Database
11g DBA Handbook

,About the Authors
Bob Bryla is an Oracle 9i and 10g Certified Professional with more than 20 years of experience in
database design, database application development, training, and Oracle database administration.
He is the primary Internet database designer and an Oracle DBA at Lands’ End in Dodgeville,
Wisconsin.
In his spare time, he is a technical editor for a number of Oracle Press and Apress books, in
addition to authoring several certification study guides for Oracle 10g and Oracle 11g. He has
also been known to watch science fiction movies and read science fiction novels in his spare time.

Kevin Loney, Director of Data Management for a major financial institution, is an internationally
recognized expert in the design, development, administration, and tuning of Oracle databases.
An Oracle developer and DBA since 1987, he has implemented large-scale transaction processing
systems and data warehouses.
He is the author of numerous technical articles and the lead author or coauthor of such
best-selling books as Oracle: The Complete Reference. He regularly presents at Oracle user
conferences in North America and Europe, and in 2002 was named Consultant of the Year
by ORACLE Magazine.

About the Technical Editor
Scott Gossett is a Technical Director for Oracle Corporation’s Advanced Technology Solutions
organization specializing in RAC, performance tuning and high availability databases. Prior to
becoming a technical director, Scott was a Senior Principal Instructor for Oracle Education for
over twelve years, primarily teaching Oracle Internals, performance tuning, RAC and database
administration classes. In addition, Scott is one of the architects and primary authors of the Oracle
Certified Masters exam.

, ®




Oracle Database
11g DBA Handbook

Bob Bryla
Kevin Loney




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