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Oracle database 11g performance tuning tips & techniques pdf

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Oracle Database Performance Tuning Guide, 11g Release 2 (). E . Oracle Database 11g Release 2 () New Features in Oracle Database . Oracle Database 11g R2 Performance Tuning Cookbook · Read more Oracle Database 10g Performance Tuning Tips & Techniques · Read more. Oracle Database 11g R2 Performance Tuning Cookbook. Read more Oracle Database 10g Performance Tuning Tips & Techniques · Read more.

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Caching a table into memory. □ Using the new 11g Result Cache. Oracle Database 11g Release 2 Performance Tuning Tips & Techniques chps. Filled with real-world case studies and best practices, Oracle Database 11g Oracle Database 11g Release 2 Performance Tuning Tips & Techniques. Oracle performance tuning: a systematic approach. A mission critical Pioneers of systematic Oracle performance tuning such as Cary Millsap promoted this technique vigorously. . (meteolille.info). . http://www. meteolille.info

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Share on Twitter. SQL Monitoring: SQL Monitoring Report: Global Information Status: Interpreting an Execution Plan Transform it into a tree. Execution Plan Interpretation: Session altered. Collapse using indentation and focus on operations consuming most resources.

Practice 5: SUM s. Star Query: Queries referring to remote fact tables are not transformed. Queries containing antijoined tables are not transformed. Star Transformation: Queries referring to unmerged nonpartitioned views are not transformed.

Star Transformation Plan: Use best plan containing a star transformation. The hinted table should not be considered as the fact table in the context of a star transformation. The hinted table should be considered as the fact table in the context of a star transformation. Bitmap Join Indexes: Practice 6: Overview This practice covers using the star transformation technique to optimize your query. Number of distinct values. Favor alternative paths Small clustering factor: Favor the index range scan path C C C Block 3.

Column value Distinct values: Frequency Histograms 10 buckets. Height-Balanced Histograms 5 buckets. Bucket number Distinct values: Multicolumn Statistics: MODEL 7. Expression Statistics: Gathering System Statistics: Statistic Preferences: Gather statistics right after object creation. Gather statistics as part of the batch operation. Objects that are volatile Objects modified in batch operations External tables.

Determine the cascading effects on indexes. Determine the degree of parallelism. Determine the correct sample sizes. Manual Statistics Collection: Determine if histograms should be used. Managing Statistics Collection: Optimizer Dynamic Sampling: Practice 7: Regardless of the literal value.

D.O.W.N.L.O.A.D [P.D.F] Oracle Database 11g Release 2 Performance Tuning Tips Techniques (Oracle

Forcing Cursor Sharing: Adaptive Cursor Sharing: Overview Adaptive cursor sharing: Architecture System observes statement for a while. Views The following views provide information about adaptive cursor sharing usage: Practice 8: Optimizer Hints: Overview Optimizer hints: Specifying Hints Hints apply to the optimization of only one statement block: Optimizer Hint Syntax: Hint Categories There are hints for: Practice 9: Overview This practice covers using various hints to influence execution plans.

What Is a Service?

Database tips performance oracle pdf techniques 11g tuning &

Use Enterprise Manager to Trace Services Service Tracing: Session Level Tracing: The trcsess Utility: Overview Use the tkprof utility to format your SQL trace files: FETCH Output of the tkprof Command There are seven categories of trace statistics: Count CPU Elapsed Disk Query Current Rows Number of times the procedure was executed Number of seconds to process Total number of seconds to execute Number of physical blocks read Number of logical buffers read for consistent read Number of logical buffers read in current mode Number of rows processed by the fetch or execute Output of the tkprof Command The tkprof output also includes the following: Misses in library cache during parse: Practice SQL workload I can do it for you!

Comprehensive SQL tuning.

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Plan tuning SQL Profile. Add missing index.

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Run Access Advisor. Automatic Tuning Optimizer SQL Tuning Advisor: TEST "C". SQL Access Advisor: Overview What partitions. Possible Recommendations Recommendation Add new partitioned index on table or materialized view. Drop an unused materialized view log. Drop an unused index. Partition an existing unpartitioned table or index. Add a new materialized view log. Modify an existing index by adding columns at the end. Modify an existing index by changing the index type.

Tuning tips database oracle techniques performance pdf & 11g

Modify an existing materialized view log to add new columns or clauses. Add a new partitioned materialized view. Initial Options Recommendation Options Schedule and Review Results and Implementation Y 3X benefit? Y Replace profile. Stale stats N 3X benefit? N Y Accept profile.

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Oracle Database 12c: Volume 2 Jump to Page. Search inside document. Oracle Database 11g: Restricted Rights Notice If this documentation is delivered to the United States Government or anyone using the documentation on behalf of the United States Government, the following notice is applicable: Oracle Database Server Architecture: Case Study: Example Implementing Recommendations Workload Source Results Automatic SQL Tuning: Result Summary Result Details Truong Hoang.

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