Portable db

Mar 21, 20140 likes246 views

Simon Huang

This document provides an overview of Oracle database architecture including: - The basic instance-based architecture with background processes like DBWR, LGWR, and processes like SMON and PMON. - Components of the System Global Area (SGA) like the buffer cache and redo log buffer. - The Program Global Area (PGA) used by server processes. - Real Application Clusters (RAC) which allows clustering of instances across nodes using shared storage. RAC requires Oracle Grid Infrastructure, ASM, and specific hardware and network configurations.

Mvc modelSimon Huang

200850 oracle primavera p6 eppm performance tuning, testing, and monitoringp6academy

The document discusses various techniques for optimizing the performance of Oracle Primavera P6 EPPM, including database tuning, application server monitoring, and best practices. It covers topics such as using tuned table statistics, database partitioning, monitoring SQL statements, checking application server health, tuning memory settings, and best practices for Java applets and job services deployments.

Oracle Database Performance Tuning ConceptChien Chung Shen

The document discusses Oracle database performance tuning. It covers reactive and proactive performance tuning, the top-down tuning methodology, common types of performance issues, and metrics for measuring performance such as response time and throughput. It also compares online transaction processing (OLTP) systems and data warehouses (DW), and describes different architectures for integrating OLTP and DW systems.

Oracle Database 12c - Features for Big DataAbishek V S

Why new hardware may not make Oracle databases fasterSolarWinds

How can you know if hardware is the right answer to your Oracle database performance issues? How can you know for sure which hardware components will have the biggest impact? As a DBA or database developer, you should know that you can gain significant performance improvements without the time, money and risk associated with providing the latest server or flash storage array. Learn why new hardware may not make your Oracle database faster and what you can do instead.

Oracle Database Performance Tuning: The Not SQL OptionGuatemala User Group

This document appears to be a slide presentation by Daniel A. Morgan on non-SQL performance tuning. It provides biographical details on Morgan, including that he is an Oracle ACE Director, author, and consultant. It also lists locations where Morgan has presented, including various universities and OTN events in Asia Pacific, Europe, Middle East, Africa, and Latin America. The presentation focuses on performance tuning methodology and addressing the root causes of issues rather than just symptoms.

Oracle database performance tuningAbishek V S

The document discusses Oracle Database performance tuning. It begins by defining performance as the accepted throughput for a given workload. Performance tuning is defined as optimizing resource use to increase throughput and minimize contention. A performance problem occurs when database tasks do not complete in a timely manner, such as SQL running longer than usual or users facing slowness. Performance problems can be caused by contention for resources, overutilization of the system, or poorly written SQL. The document discusses various performance diagnostics tools and concepts like wait events, enqueues, I/O performance, and provides examples of how to analyze issues related to these areas.

Oracle Advanced Analyticsaghosh_us

The document discusses Oracle's Advanced Analytics Option which extends the Oracle Database into a comprehensive advanced analytics platform. It includes Oracle Data Mining for in-database predictive analytics and data mining, and Oracle R Enterprise which integrates the open-source R statistical programming language with the database. The option aims to bring algorithms to the data within the database to eliminate data movement and reduce total cost of ownership compared to traditional statistical environments.

OOUG - Oracle Performance Tuning with AASKyle Hailey

The document provides information about Kyle Hailey and his work in Oracle performance tuning. It includes details about his career history working with Oracle from 1990 to present, including roles in support, porting software versions, benchmarking, and performance tuning. Graphics and clear visualizations are emphasized as important tools for effectively communicating complex technical information and identifying problems. The goal is stated as simplifying database tuning information to empower database administrators.

Oracle architecture pptDeepak Shetty

This document provides an overview of the Oracle database architecture. It describes the major components of Oracle's architecture, including the memory structures like the system global area and program global area, background processes, and the logical and physical storage structures. The key components are the database buffer cache, redo log buffer, shared pool, processes, tablespaces, data files, and redo log files.

Oracle Database SQL Tuning ConceptChien Chung Shen

Oracle SQL tuning involves optimizing SQL statements for better performance. Key aspects of SQL tuning include identifying SQL statements with high resource consumption or response times using tools like ADDM, AWR, and V$SQL. Statements can then be tuned by gathering accurate optimizer statistics, adjusting the execution plan using hints, rewriting the SQL, or changing indexes and tables. Tuning is done at both the design and execution stages.

Exploring Oracle Database Performance Tuning Best Practices for DBAs and Deve...Aaron Shilo

The document provides an overview of Oracle database performance tuning best practices for DBAs and developers. It discusses the connection between SQL tuning and instance tuning, and how tuning both the database and SQL statements is important. It also covers the connection between the database and operating system, how features like data integrity and zero downtime updates are important. The presentation agenda includes topics like identifying bottlenecks, benchmarking, optimization techniques, the cost-based optimizer, indexes, and more.

Oracle db performance tuningSimon Huang

This document discusses Oracle database performance tuning. It covers identifying common Oracle performance issues such as CPU bottlenecks, memory issues, and inefficient SQL statements. It also outlines the Oracle performance tuning method and tools like the Automatic Database Diagnostic Monitor (ADDM) and performance page in Oracle Enterprise Manager. These tools help administrators monitor performance, identify bottlenecks, implement ADDM recommendations, and tune SQL statements reactively when issues arise.

Oracle Oracle Performance Tuning Kernel Training

About the course: This Oracle performance tuning online course is designed for the audience who want to learn basics and core concepts of Oracle PT. You will be learning about Introduction, basic tuning diagnostics, how to use automatic workload repository, defining of problems, how to create AWR baselines, monitoring of applications Etc. All Oracle performance tuning classes will be live and interactive. Course Target: Oracle performance tuning online training is designed to teach you fundamentals of PT. Understand basic tuning diagnostics. Learn how to use Automatic workload repository. Obtain knowledge of using metrics and alerts. Clear understanding of how to monitor applications. Need to identify problem SQL statements Learn how to influence the optimizer. Understand SQL performance management. Tuning the shared pool, I/0, Buffer cache, PGA and temporary space. Course Targeted Audience: Any candidate can join our Oracle performance tuning online course. People who are from professional background can join. Researches can also participate in this course. Prerequisites: Candidates with basic knowledge of computer. Basics of database are recommended. Training Format: Kernel Training provides Oracle performance tuning online course led by real time expert. Registered Candidates can interact with instructor in live interactive sessions. Candidates will have life time access to learning material. Companies Using Oracle PT: Major international IT companies perform Oracle performance tuning for their operations.

Oracle Database 12c - The Best Oracle Database 12c Tuning Features for Develo...Alex Zaballa

Oracle Database 12c includes many new tuning features for developers and DBAs. Some key features include: - Multitenant architecture allows multiple pluggable databases to consolidate workloads on a single database instance for improved utilization and administration. - In-memory column store enables real-time analytics on frequently accessed data held entirely in memory for faster performance. - New SQL syntax like FETCH FIRST for row limiting and offsetting provides more readable and intuitive replacements for previous techniques. - Adaptive query optimization allows queries to utilize different execution plans like switching between nested loops and hash joins based on runtime statistics for improved performance.

Oracle Performance Tuning FundamentalsEnkitec

Performance Tuning With Oracle ASH and AWR. Part 1 How And Whatudaymoogala

The document discusses various techniques for identifying and analyzing SQL performance issues in an Oracle database, including gathering diagnostic data from AWR reports, ASH reports, SQL execution plans, and real-time SQL monitoring reports. It provides an overview of how to use these tools to understand what is causing performance problems by identifying what is slow, quantifying the impact, determining the component involved, and analyzing the root cause.

Tanel Poder - Troubleshooting Complex Oracle Performance Issues - Part 2Tanel Poder

This document summarizes a series of performance issues seen by the author in their work with Oracle Exadata systems. It describes random session hangs occurring across several minutes, with long transaction locks and I/O waits seen. Analysis of AWR reports and blocking trees revealed that many sessions were blocked waiting on I/O, though initial I/O metrics from the OS did not show issues. Further analysis using ASH activity breakdowns and OS tools like sar and vmstat found high apparent CPU usage in ASH that was not reflected in actual low CPU load on the system. This discrepancy was due to the way ASH attributes non-waiting time to CPU. The root cause remained unclear.

Tanel Poder - Troubleshooting Complex Oracle Performance Issues - Part 1Tanel Poder

The document describes troubleshooting a complex performance issue in an Oracle database. Key details: - The problem was sporadic extreme slowness of the Oracle database and server lasting 1-20 minutes. - Initial AWR reports and OS metrics showed a spike at 18:10 with CPU usage at 66.89%, confirming a problem occurred then. - Further investigation using additional metrics was needed to fully understand the root cause, as initial diagnostics did not provide enough context about this brief problem period.

Delphix and Pure Storage partnerKyle Hailey

Oracle database performance tuningYogiji Creations

Database tuning is the process of optimizing a database to maximize performance. It involves activities like configuring disks, tuning SQL statements, and sizing memory properly. Database performance issues commonly stem from slow physical I/O, excessive CPU usage, or latch contention. Tuning opportunities exist at the level of database design, application code, memory settings, disk I/O, and eliminating contention. Performance monitoring tools like the Automatic Workload Repository and wait events help identify problem areas.

Top 10 tips for Oracle performance (Updated April 2015)Guy Harrison

This document provides a summary of Guy Harrison's top 10 Oracle database tuning tips presentation. The tips include being methodical and empirical in tuning, optimizing database design, indexing wisely, writing efficient code, optimizing the optimizer, tuning SQL and PL/SQL, monitoring and managing contention, optimizing memory to reduce I/O, and tuning I/O last but tuning it well. The document discusses each tip in more detail and provides examples and best practices for implementing them.

Oracle Sql TuningChris Adkin

The document discusses tuning SQL queries in Oracle databases. It begins by noting that while tools can help, there is no single process for tuning every query as each case depends on factors like the schema design, data distribution and how the optimizer chooses a plan. The document then provides a methodology for investigating and tuning a query with poor performance, including getting the execution plan, checking it visually, and identifying possible causes like stale statistics, missing indexes or inefficient SQL.

企業資源規劃(Erp)系統實務2.0Simon Huang

Sql server performance TuningSimon Huang

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企業資源規劃(Erp)系統導入規劃Simon Huang

Oracle db subprogramsSimon Huang

This document provides an overview of PL/SQL subprograms, including anonymous blocks, stored PL/SQL units like procedures and functions, and PL/SQL packages. It defines each component and provides examples. Anonymous blocks allow executing PL/SQL code without a name. Stored procedures and functions can be invoked by many users. Packages organize related objects and allow overloading subprograms. The document demonstrates package specifications that declare objects and package bodies that define objects and private components.

關聯式資料庫系統的規劃Simon Huang

Portable db

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