why exadata

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Turn: Survey on database compression technology

databases provide field-level compression, but there are some databases using tables, even the entire library as the basic unit of compression. Obviously, the thicker the compression granularity, the greater the impact on the usability of the system, the compression granularity above the table level is usually no longer considered to be the database itself supporting the compression technology.In addition to the compression granularity, the choice of storage formats is also important for the sc

Oracle urgently fixes Bash vulnerabilities, and more than 40 products are still waiting in line

initially estimated to have affected dozens of Oracle products. However, the patches released by Oracle only cover a few products, including Oracle Database Appliance, Oracle Exadata Storage Server Software, Oracle Exalogic, Oracle Exalytics, Oracle Linux 4/5/6/7, and Oracle Solaris Operating System 8/9/10/11.Release: This is a product that has released a patch. More than 40 products, including Big Data Appliance, Oracle Communications, Oracle Fusio

Priority of RestoreOracleDatafile in OMF

.DBF Related posts: [Oracle Database 12c] New Features of RMAN [Fault Diagnosis] RMAN-06026 and ABSOLUTE_FUZZY_CHANGE # Fast incremental backup failed on standby database 11g new features recover upload uption list Exadata offload incremental backup [Oracle data recovery] solve ORA-01578 error example Information segment sections recorded in the Oracle Controlfile Control File Cell smart restore from backup wait event Duplicate standby data

ORACLE Database recovery ORA-00600 [KCLCHKBLK]

Database repair team to help you recover it! Known bugs related to ORA-00600 [KCLCHKBLK3/4] are as follows: NB Bug Fixed Description 17273253 12.1.0.1.1 Various ORA-600 resume uption errors with ASM 14034244 11.2.0.3.BP09, 11.2.0.4, 12.1.0.1 Lost write type resume uption using ASM in 11.2.0.3 12718090 11.2.0.3.1, 11.2.0.3.BP02, 11.2.0.4, 12.1.0.1 ORA-600 [kclchkblk_3] can occur in RAC + 10425010 11.2.0.3, 12.1.0.1

Bet result 12.1.0.2.0 can be like this once

to do this test because I have already tested it a few months ago, but I don't believe it, so I have to do it again ~Take a look at the current environment. Note that the information here is sufficient to prove that it is a non-exadata environment ...... [root@localhost ~]# imageinfo-bash: imageinfo: command not found[root@localhost ~]# imagehistory-bash: imagehistory: command not found[root@localhost ~]# uname -aLinux localhost.localdomain 2.6.32-30

Oracle Database In-Memory assists "real-time" Enterprises

-effectively, whether it is a PB-level data warehouse, big data processing, or database cloud. · Rich programmability: Java, R, big data, PHP Python, Node, REST, Ruby, etc. · Comprehensive support for various data types: relational, object, XML, text, spatial data, and the latest integrated JSON. The  Oracle integration system perfectly complements Oracle Database In-Memory: · Oracle integration systems, including Oracle Exadata Database ECs and Orac

Oracle says its latest memory database is 100 times faster than its hands.

display the sales trend of its products in a few seconds. "The cost of retaining these indexes is high, which slows down transaction processing. Abandon it. Let's discard all these analysis indexes and replace them with indexes sorted by memory columns ." Not over yet, Ellison next introduced Oracle's latest M6-32 "Large Memory Machine", and said it is the world's fastest memory device. The number of M6 cores to be listed is twice that of M5, with 32 tb dram Memory configured. "It can quickly m

After Oracle is upgraded to 11.2.0.4, The NUMA warning is displayed in the alert Log.

After Oracle is upgraded to 11.2.0.4, The NUMA warning is displayed in the alert Log. After Oracle is upgraded to 11.2.0.4, The NUMA warning is displayed in the alert Log. Note: the articles related to this article are: After upgrading to 11.2.0.4, The NUMA warning is displayed in the alert Log. Translated from mos: NUMA warning message appear after upgrade to 11.2.0.4 (Document ID 1600824.1) 1 Applicable:Oracle Database-Enterprise Edition-Version 11.2.0.4 and laterInformation in this

Is converged infrastructure the future of data centers?

get tired of DIY and like to integrate systems ." Said Campbell. "Converged infrastructure really captures user needs," said Jason Needham, vice president of product management and marketing at F5 Networks. "This does allow them to examine their IT infrastructure from a new perspective, however, the reality is that they cannot be restarted immediately. For example, the concept of integrated controller in SDN is still a promise that can be fulfilled in the future ." New bottled old wine? If the

Summary of data compression functions in Oracle

some transactions that trigger the compression condition will experience a slight compression overhead.Therefore, most oltp Transactions Act on the compressed block and have the same performance as uncompressed tables.Only unlucky operations can cause intra-block compression.For details, refer to the aco White Paper.Example:Create table t (id number) compress for oltp; copy Code 4. HCC (Hybrid Columnar Compression)This feature is only available for Oracle databases in the

The Oracle database must be patched to the lowest Patchset/PSU/RU translation description, patchsetpsu

versions earlier than 12.2.0.1, make sure that all connected databases have applied the patchset/PSU/BP levels or higher patchset/PSU/BP levels mentioned below. Minimum Required PSU/RU Patch Name? Release Data? Patch Number? 12.1.0.2.0 PATCH SET FOR ORACLE DATABASE SERVER 09/01/15? 17694377? 11.2.0.4.0 PATCH SET FOR ORACLE DATABASE SERVER 08/27/13? 13390677? Database patch set update 11.2.0.3.9 (des CPUJAN2014) 01/14/14? 17540582

Storage space Management

; Cell Flash cache hint to being used for segment blocks: default KEEP NONE see Als O:oracle Exadata Storage Server Software documentation for more information INMEMORY VARCHAR2 (8) NBSP; Indicates whether the In-memory column store (IM Column Store) is enabled ( enabled ) or Disab LED ( DISABLED ) for this segment inmemory_priority

Big Data and open-source tools

, proprietary software built on Apache hadoop, and paraccel. IBM's netezza is in its Infosphere product. Oracle exadata and EMC's greenplum are also proprietary tools for processing large amounts of data. EMC introduced free greenplum DatabaseCommunityVersion. This Community version is only software. Greenplum community reports include three collaboration modules: greenplum dB, madlib, and alpine miner. Open-source tools for processing large dat

Data Mining update in Oracle

managed by Oracle databases in real time. Other nodes include those that create views, browse data, merge and cleanse data, convert and aggregate data, and create models. A filter node allows you to remove error data elements, unimportant attributes, sample data, and more. Statistics required for all analysis and report nodes are also run in the database and all steps in the workflow generate an SQL auxiliary graph. Nodes such as classification can run in multiple models at the same time, and

Salesforce.com and Oracle reach a long-term agreement on cloud cooperation

cloud computing, namely applications, platforms and infrastructure. For Salesforce, it plans to standardize on the Oracle Linux operating system, Exadata engineering system, Oracle database, and Java middleware platform. For Oracle, the company plans to integrate Salesforce.com with Oracle Fusion HCM and Financial Cloud and provide core technologies for the application and platform of Salesforce.com. Salesforce.com will also use Oracle Fusion HCM a

The job market is grim. The scenery on the hadoop side is outstanding.

social network analysis capabilities. For hadoop, they must also learn to use mapreduce for pre-test and statistical modeling. In addition, for hadoop platform administrators, they must be competent for hadoop clusters, security management, and performance optimization. Kobielus also said, "The database administrators of teradata and Oracle exadata have begun to transform to hadoop cluster administrators. They realize that this is a brand new field .

To modify the port number of an oracle 10g rac listener to 1523, rac1523

To modify the port number of an oracle 10g rac listener to 1523, rac1523To modify the port number of an oracle 10g rac listener to 1523I,Modify listener. ora and change 1521 to 1523. Back up the file in advance for quick recoveryII,Modify tnsnames. ora, change the value of remote_listener in tnsnames. ora to 1523, and back up the file in advance to facilitate quick recovery.III,Modify local_listener database initialization parameters Alter system set local_listener = '(ADDRESS = (PROTOCOL = TCP

(Les01 venture trure IV Storage Structure) [20180116], les01venture trure

: used for database recovery. Archive redo log file: contains real-time historical records of instance data changes (redo. You can use these files and Database backups to restore lost data files. Trace file: each server and background process can write an associated trace file. When a process detects an internal error, it dumps information about the error to the corresponding trace file. Warning Log File: The file contains special tracking entries. The database warning log is a log that records

(Les01 Architecture III process structure) [20180113], les0120180113

database, but can be shared among multiple databases on the same server. Grid Infrastructure processes and Network processes belong to this category. The Grid Infrastructure processes on Liunx and Unix systems include-ohasd: The Oracle High Availability service daemon, which is responsible for starting the Oracle Clusterware process. -Ocssd: the cluster synchronization service daemon-diskmon: disk monitoring daemon, which monitors the input and output of HP Oracle

PRM an Oracle database disaster recovery ambulance Tool

directly transferred to the new target database, reduces the time and extra disk space required for exporting and importing data. The PRM program is very robust. Even if there are hundreds of problems with database corruption, PRM can easily save data. PRM supports almost all common data types, including LOB: BLOB, CLOB, and NCLOB. PRM can directly access the data files on ASM without copying the files from ASM. PRM can directly Save the data files damaged on the ASM Diskgroup, and this fun

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