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An overviewTwo-SQL planning baseline Plan Baseline architectureThree-load SQL plan baselinesFour Evolutionary SQL plan baselinesFive important baseline SQL plan propertiesSix-SQL Plan selectionSeven possible SQL plan manageability ScenariosEight SQL performance analyzers and SQL plan baseline scenariosNine automatically load SQL plan baseline scenariosTen clear SQL Management library policiesA OverviewThere may be a
Database partitioning is one of the key functions required by each database. Almost all Oracle databases use the Partition Function to improve query performance. The Oracle 11g Partition Function simplifies the daily management and maintenance of the database, greatly reducing the DBA (Database Design and Management En
and reduced network load. In Oracle 10 Gb, ASM reads the primary copy of an image set. We know that this is done to distribute IO and improve performance. For a disk in a disk group, a node may be a local disk or a remote disk. If data is read from the master copy, the master copy is a remote disk, obviously there is no local disk with high efficiency. However, in Oracle10g, the data cannot be read from wh
information related to an event. You can also send the packaging information to the Oracle Support Team. ·6. 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 are using with patches. 7. Au
highest performance level and availability ." "The New Oracle Enterprise Manager 11g plug-in for Brocade ServerIron ADX helps greatly reduce the cost and complexity of network management," said Patric Chang, director of the Brocade strategic alliance. In addition, this plug-in allows administrators of Brocade networks to access the monitoring information, which
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
ExportOracle_hostname=dgExportOracle_unqname=dgExportOracle_base=/u01/oracleExportOracle_home=$ORACLE _base/product/11.2.0/db_1ExportOracle_sid=dgExportPath=$ORACLE _home/bin:$PATH ExportLd_library_path=$ORACLE _home/lib:$LD _library_path ExportClasspath=$ORACLE _home/jlib:$ORACLE
of new products. Finally, hardware is evolving, such as the maturing of flash technology, where flash memory can be used as a cache between disk and memory, or a complete replacement for disk. And the memory price is getting lower and bigger, the in-memory cache or database is more and more widely used, which can bring the order of magnitude performance improvement to the application. The IO problems faced by the database will be greatly improved.Ref
Routine maintenance and troubleshooting of Oracle 11G R2 slave uard 1. About the Forced Logging ModeSome DDL statements can avoid writing redo logs by specifying the NOLOGGING clause (the purpose is to increase the speed, which is indeed valid in some cases). After specifying the database as the force logging mode, the database records all operations except the temporary tablespace or temporary rollback seg
Test11gCompression performance Comprehensive results: After compress is set for the 11g top-up table, the default value is enabled direct load only. ONLY append can be inserted through the DIRECT path, and sqlldr can be compressed. The compression ratio is the same as the optimal ratio of normal move compress. apped, there is no obvious difference between sqlldr (oracl
I see a lot of questions on shared file systems the can used when people move from single instance to Oracle RAC Datab ASE and Grid Infrastructure. The most common question are the following: "should I place archive logs in OCFS2 or ASM or ACFS of 11g?" I ' ll try to clarify this topic below.First we need to understand a separation between Oracle database files a
Partition partitioning is a performance and Management Optimization Technology launched by Oracle. In the Oracle database technology system, Partition is a big Data processing policy officially recognized by Oracle in the DW (Data Warehouse) system.For the single Partition technology itself,
Tags: style blog http io using ar strong file data1. Select the database used by biAs a bi system, the use of a powerful background database software is essential. There are many database products with high performance and stability, such as IBM DB2, Oracle, GP and so on. These databases are commonly used in everyday enterprise-level BI systems. In terms of my personal work experience and the company's reco
CentOS6.5x64 install 64-bit Oracle 11g in silent mode 1. Download the 64-bit Oracle11g source file and upload it to the Linux server. 2. Package installation check and installation: Install the tool using yum: Yum-y install binutils compat-libstdc ++-33 elfutils-libelf-devel glibc-common glibc-devel gcc-c ++ libaio-devel libaliblibgcc gcc stdc + + libstdc ++-devel make sysstat unixODBC-devel pdksh numactl-d
other high-speed network (such as IB), it is very fastidious, of course, and take the serial line to achieve heartbeat information transmission. In addition, what network parameters are used to the overall performance and robustness of the cluster have a great relationship.Case:XX City, 4 node Oracle 10g RACThe operating system uses RHEL 4, according to the default installation documentation, set the netwo
the busy exchange degree of cachebuffer and improves the efficiency of cachebuffer. however, the SGA buffer cache cannot be used because it avoids the SGA process. There is a direct read-related bug in MOS, MOS as follows: Keep buffer pool does not work for largeobjects on 11g [ID 1081553.1] 4.1 symptoms While doing fulltable scan, buffer cache keep pool is not being used to read the blocks of A (keep) table which size is> 10% of db_keep_cache_size.
will automatically create an event (incident), capture information related to the event, and automatically perform database health check and notify DBA. In addition, this information can be packaged and sent to the Oracle Support Team.◆ Incident Packaging Service)If you need to further test or retain relevant information, this feature can package information related to an event. You can also send the packaging information to the
Bkjia.com exclusive Article]Oracle 11gR1 provides the ability to capture application loads in the production environment and replay loads in the testing environment, this technology is used to determine the impact on the performance of the system, database, or application after modification. In this article, I will describe how to capture and prepare the load from the current production database in the p +
Some ASP. NET + Oracle 11g learning and writing essays. This seriesArticleIt can help. net that is unfamiliar with Oracle and is not even used at all.ProgramStaff, can get started and develop applications in the shortest time, to avoid having to spend as much time as I did for the support team to flip books, Query files, create code for implementation and test, a
Tags: Hot Download Center database system will be user installation complete album prerequisite Check sel Oracle database system is one of the most popular client/server (client/server) or B/s architectures in the United States Oracle Corporation (Oracle) provides a distributed database-centric set of software products. Oracl
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