Oracle Database 11g R2: SQL Tuning, Architecture & Internals
Course Description
“Architecture & Internals” will reveal the underlying architecture of the Oracle database environment. This course is also intended to be of help to information technology (IT) managers and executives who require an understanding of the technology upon which they and their staff rely.
This architectural discussion will be much more than just a presentation of theoretical concepts. After explaining in logical terms the architectural component under consideration, this course module will frequently show the component as it is actually rendered by the Enterprise Manager graphical interface for database administrators. At other times this course will use the SQL command-line interface to explain the characteristics of the architectural component being discussed.
“SQL Tuning” will equip database administrators and application developers to build efficient SQL statements and to tune database applications. When this effort is complemented by database server and PL/SQL application tuning, then a highly efficient application execution environment is created. One will learn about the internals of SQL statement execution, how to monitor the performance of such execution, and how one can influence the behavior of the database to achieve performance gains. This course is a mandatory reference for any database administrator or SQL database application developer.
This architectural discussion will be much more than just a presentation of theoretical concepts. After explaining in logical terms the architectural component under consideration, this course module will frequently show the component as it is actually rendered by the Enterprise Manager graphical interface for database administrators. At other times this course will use the SQL command-line interface to explain the characteristics of the architectural component being discussed.
“SQL Tuning” will equip database administrators and application developers to build efficient SQL statements and to tune database applications. When this effort is complemented by database server and PL/SQL application tuning, then a highly efficient application execution environment is created. One will learn about the internals of SQL statement execution, how to monitor the performance of such execution, and how one can influence the behavior of the database to achieve performance gains. This course is a mandatory reference for any database administrator or SQL database application developer.
5 Days
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Prerequisites
• RELATIONAL DATABASE DESIGN & DATA MODELING• ORACLE DATABASE 11G R2: SQL FUNDAMENTALS – COMPLETE LIBRARY
• ORACLE DATABASE 11G R2: THE COMPLETE INSTALLATION GUIDE FOR LINUX & WINDOWS
“SQL Tuning” covers the following specific topics
• Consider the unique and differing tuning issues found in online database applications, enterprise resource and data warehouse environments and the important metrics of SQL statement performance.• Learn about the internal mechanisms use for SQL statement execution within a database instance and how these can affect performance for good or bad, including the Optimizer facilities known as the Transformation Engine, Estimator and Plan Generator.
• Use a variety of techniques to examine the details of SQL statement execution, spotting trouble areas and bottlenecks which require tuning.
• Learn about the Auto-Task framework and how to manage the automatic collection of Optimizer statistics and automatic SQL tuning using both the programmatic and Enterprise Manager interfaces.
• Learn how statistic deficiencies can dramatically degrade performance, and how these problems are resolved through customized Optimizer statistics collection procedures using the DBMS_STATS() package, system statistics, histograms, expression statistics and MultiColumn statistics.
• Influence the behavior of the Optimizer by setting database parameters and other SQL tuning techniques.
• Utilize the database advisory framework and the SQL Tuning and SQL Access advisors.
• Use plan management to achieve plan stability which is adaptive and even dynamic.
• Understand the self-tuning infrastructure and the automatic SQL tuning capabilities found within the database.
• Employ SQL hints embedded into the statement text to resolve unique tuning challenges.
• Learn to identify poorly performing SQL statements using real-time SQL monitoring and application tracing techniques such as DBMS_MONITOR(), trcsess and tkprof.
EXECUTION PLAN METHODS & OPERATIONS
• TABLE ACCESS METHODS• JOIN METHODS
• INDEX OPERATIONS
• DATA OPERATIONS
MANAGING OPTIMIZER STATISTICS
• MORE ABOUT OPTIMIZER STATISTICS• AUTOMATIC MAINTENANCE TASKS
• MANUALLY GATHERING STATISTICS
• GATHER_TABLE_STATS()
• GATHER_INDEX_STATS()
• GATHER_SCHEMA_STATS()
• GATHER_DATABASE_STATS()
• GATHER_SYS Parameter
• GATHER_DICTIONARY_STATS()
• GATHER_FIXED_OBJECTS_STATS()
• USING HISTORICAL STATISTICS
• DYNAMIC SAMPLING
• LOCKING STATISTICS
ENHANCED OPTIMIZER STATISTICS
• ABOUT OPTIMIZER SYSTEM STATISTICS• MANAGE SYSTEM STATISTICS
• CREATE_STAT_TABLE(), DROP_STAT_TABLE()
• CREATE_STAT_TABLE()
• DROP_STAT_TABLE()
• GATHER_SYSTEM_STATS()
• GET_SYSTEM_STATS()
• SET_SYSTEM_STATS()
• IMPORT_SYSTEM_STATS(), EXPORT_SYSTEM_STATS()
• IMPORT_SYSTEM_STATS()
• EXPORT_SYSTEM_STATS()
• DELETE_SYSTEM_STATS()
• PENDING & PUBLISHED STATISTICS
HISTOGRAMS & EXTENDED STATISTICS
• WHY ARE HISTOGRAMS NEEDED?• HISTOGRAMS INTERNAL STRUCTURE
• MANUALLY MANAGING HISTOGRAMS
• EXPRESSION STATISTICS
• MULTICOLUMN STATISTICS
APPLICATION TRACING
• APPLICATION TRACING PACKAGES• SET_SQL_TRACE()
• TRACE_ENABLE()
• SET_IDENTIFIER()
• EM APPLICATION MONITORING & TUNING
• REAL-TIME MONITORING
• USING TRCSESS & TKPROF
ADDM & THE SQL TUNING ADVISOR
• ADDM PERFORMANCE ANALYSIS• USING THE SQL TUNING ADVISOR
• AUTOMATIC SQL TUNING
• CONFIGURING AUTOMATIC SQL TUNING
THE SQL ACCESS ADVISOR
• USING THE SQL ACCESS ADVISOR• SQL ACCESS ADVISOR TEMPLATES
• PERFORMING A QUICK TUNE TASK
• INDEX DATABASE PARAMETERS
• OPTIMIZER_INDEX_COST_ADJ
• OPTIMIZER_INDEX_CACHING
OracleOracle 11gOracle Database 11gSQL Tuning