oracle 11g tuning

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New Features of Oracle 11g (36 in total) I. Database Management ·1. Database Replay) This feature can capture the load of the entire data and pass it to a test database created from the backup or standby database, and then repeat the load to test the system tuning effect. ·2. SQL replay (sqlreplay) Similar to the previous feature. However, it only capt

Oracle 11g Automatic Optimization and oracle11g Optimization--: Automatic Plan OptimizationBeginDbms_workload_repository.create_snapshot ();End;Select/* + result_cache */count (*) from (select * from HJ. dbtan where object_type = 'table' order by 1 DESC, 2 ASC, 3 DESC, 4 ASC );BeginDbms_workload_repository.create_snapshot ();End;-- Ft8s1pfmz9ph0SET SERVEROUTPUT ONDECLARERochelle SQL _tune_task_id VARCHAR2 (

Install Oracle 11g R2 + RAC + ASM in Oracle Linux 6.4 I. Version descriptionMany articles related to the Internet are found, but they are not very specific. Therefore, the detailed version is used to make the article more practical.This is the RAC environment of Oracle 11g R

Label:Oracle 11G RAC cluster installation (vii) Overview: write down the original intent and motivation of this document, derived from the Oracle Basic operating Manual of the previous article. The Oracle Basic Operations Manual is a summary of the author's vacation on Oracle's foundational knowledge learning. Then form a summary of the system, a review

information, this feature can package information related to an event. You can also send the packaging information to the Oracle Support Team.· Feature-based Patching)During patching, this feature makes it easy for you to differentiate the features in the patch package that you are using and must play. Enterprise Manager (EM) enables you to subscribe to a feature-based patch service, so Enterprise Manager can automatically scan for the features you a

ASM file allocation in a disk group Oracle ASM striping Oracle ASM strip has the following two purposes: Distribute the Server Load balancer across all disks in the disk group. Reduces I/O latency ASM strip is divided into coarse-grained strip and fine-grained strip. Coarse-grained strip is used as a disk group to provide load balancing, while fine-grained strip can reduce the I/O latency of a specif

This paper is compiled from Oracle documentation Warehouse Builder 11g Architecture and components Oracle Warehouse Builder is an information integration tool that can transform data into high-quality information using an Oracle database. The Oracle database is the central

SQL turning is a tool in the Quest Central software produced by Quest Corporation. Quest is an integrated, graphical, Cross-platform database management solution that can manage Oracle, DB2, and SQL Server databases simultaneously. Introduction to SQL tuning for SQL Server The optimization of SQL statements is critical to the best performance of the database. Unfortunately, however, application optim

When Oracle database performance problems occur, it is effort-saving to use the Oracle toolkit and give reasonable optimization suggestions. The following two packages are described and their specific practices. The smallest adjustment tool for SQL Tuning Advisor. Use one or more SQL statements as the input content, analyze all access paths, generate suggestions

in a plan baseline. If Plan_name is also specified, the corresponding execution plan is displayed.Note: In order to preserve backward compatibility, the statement will be compiled with this storage outline if the stored outline pair of an SQL statement for a user session is active. In addition, even if automatic scheduled capture is enabled for the session, the optimizer is not stored in SMB with a plan that is generated by the storage outline.Although the storage outline does not have any expl

Fusion Technology (IV) RAC special problems and combat experience (V) ORACLE one-to-G Version 2 RAC ready for use with NFS on Linux (vi) ORACLE ENTERPRISE LINUX 5.7 under Database 11G RAC cluster installation (vii) ORACLE ENTERPRISE LINUX 5.7 Databases 11G R

tuning rules that every Oracle DBA should follow Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to do this is through

export or after the import recompile. The stored procedure did not import successfully, so I finally took advantage of Navicat to import the stored procedure successfully.Note: (1) To ensure that two databases have the same character set, if the difference will be an error. I checked the next two database character sets are the same, so I'm not sure what is wrong with the specific report. To view the database character set:SELECT * from V$nls_parameters WHERE PARAMETER in (' Nls_characterset ',

Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to do this is through Oracle tuning. It has a large number of tuni