oracle exadata architecture

Tags: reading notes Oracle DatabaseI. Oracle logical architecture DiagramIi. Composition of logical structureThe logical structure of the ORALCE includes1. Table Space2. Paragraph3. District4, BlockThe Oracle database consists of several table spaces, consisting of several segments consisting of several sections, which

Tags: instruction class update variable content private Area LOB permissionsPga-program Global AreaThe PGA memory area is private and not shared, and any operations initiated by the user against the database, whether queries or updates, are preprocessed in the region before entering the instance area (which is done by the SGA and the system daemon process).What are the main pretreatment?First, save the user's connection information, such as session properties, binding variables, etc.;Second, sav

Just beginning to learn Oracle, record their own study notes, if there are errors, but also hope that you have a lot of advice.first, a relatively important figure in the Oracle architecture, as follows 650) this.width=650; "Src=" http://s4.51cto.com/wyfs02/M01/77/3A/ Wkiom1zlzogaw9xoaak_uw3mxg0089.jpg "title=" 912c7cea6fb04838bde18c50f24164c6.jpg "alt=" wKiom1Zl

Oracle's Optimal Flexible Architecture (OFA) refers to the naming conventions and storage location rules for Oracle software and database files and folders. It can be used as a group of good habits, so that users can easily find the file structure related to the Oracle database. Using the best and flexible architecture

Label:The Oracle EBS R12 server-side file structure is as follows:The top level directory is divided into1) inst--– configuration information and other information related to the entire EBS instance (instance)2) DB ——-Primary storage DB layer Information3) Apps ——-primarily application-level information1) First look at the situation of Inst_top2) Look at the contents of the database again3) Finally the content of the appsThe description of the folder

Tags: database Oracle library Server SystemJust debut, here hope you Daniel guidance, hope here to become a platform for my growth! This blog I tell you about Oracle's architecture, but also a test of their own learning!Oralce memory is composed of SGA+PGA.The Oracle server is comprised of Oracle instances and

The architecture of an Oracle Data warehouse can be divided into three tiers: Data acquisition Layer: Oracle database Enterprise ETL OPTION + Oracle database data Quality option in Oracle database 10g the same software is designed from data model, data Quality management, E

different technology architecture from traditional application development, including many components that simplify and standardize the development and deployment of application systems, thus improving portability, security, and reuse value.Java EE Core is a set of technical specifications and guidelines, including various types of components, service architecture and technical level, all have common stand

overwritten, the archive process reads the log information of the log file that is about to be overwritten, and then writes these "read log messages" to the archive log file.When the system is busy, it may cause LGWR to wait for the arch process, you can modify the Log_archive_max_process parameter to start multiple archive processes, thereby increasing the speed of the archive write disk.System monitoring Process (Smon)A mandatory process to perform recovery work when the database system is st

After work, have been busy with the front-end development; Basically forget, all of Oracle's things; think back to the original "DBA" dream; Consider the present situation, long story, filled with emotion; In order to pick up the knowledge of the database, have been looking at the blog of Daniel; In order to deepen the memory, it and review , the following will continue to extract Daniel's blog content; merely;Here is an Oracle

Tags: file creation customer background control software data store write ACLOracle ArchitectureOracle architecture is mainly used to analyze the composition, working process and principle of the database, as well as the organization and management mechanism of the data in the database.Oracle DatabaseThe Oracle database is a logical concept, not a server that is physically conceptually installed on the

Oracle architecture, I think, can be divided into: memory structure, process structure and storage structure. The process structure serves as a bridge between the memory structure and the storage structure. The implementation of Oracle architecture varies slightly on different platforms. For example, in Unix (Linux),

Architecture Diagram Learning: The story of Lao Yu's clothing store Structure diagram: SQL query Statements Sga Shared pool Data buffer Buffer Cache Pga Process SQL UPDATE statement Sga: Log buffers Log file Deep learning Submit Rolling back Consistent

objects involvedSelect the optimal execution scheme and generate the execution planThe generation of execution plans consumes the most system resources (CPU, I/O, and Memory), especially CPU and I/O resources.Soft parsing: Only checks the syntax, semantics, and object permissions of SQL statements, without generating execution plans.Soft parsing: No ParsingSQL> select name, value from v $ sysstat where name like 'parse % ';NAME VALUE----------------------------------------Parse time cpu 1339Par

Always think of their understanding of Oracle can also, especially after the test OCM certification. A few days ago a friend asked me, can you give a brief introduction to Oracle architecture? My mind immediately thought of the previous Oracle 11g architecture diagram (12C b

: used to store all data (*. DBF). Each database has a set of data files, and only one data file can correspond to one database.LOG File: records all operations performed on the database (*. LOG). It is mainly used for database fault recovery.Control File: records the control information (*. CTL) of all database files ). Syntax View:C: \> sqlplus "sys/test1234 as sysdba" SQL> DESC v $ controlfileSQL> SELECT status, name FROM v $ controlfile SQL> DESC v $ datafileSQL> SELECT file #, status, name

, flexible, and adaptable memory management solution that greatly simplifies the management of Oracle databases.For example, for systems that run large online transaction processing (OLTP) jobs during the day (requiring large buffer caches) and running parallel batch jobs at night (which requires large pools of memory), you must configure both the buffer cache and the large pool to accommodate peak demand. With the ASMM feature, when an OLTP job runs,