database capacity planning oracle

The deduplication technology can provide a larger backup capacity for longer data retention, continuous verification of backup data, improve the level of data recovery services, and facilitate data disaster tolerance. Duplicate data may be in the following two cases. In the first case, only some fields in the table are the same, and in the second case, the two rows have identical records. Oracle

strategy At the operating system level, with a large-capacity disk array, each database file is automatically distributed to each physical disk by disk image technology. In this way, when a disk is physically damaged, the operating system automatically raises the image disk to replace the failed disk, ensuring that the database is running properly. Maintain mu

HACMP can be said to be a server engineer, and there is no unknown-IBM's housekeeping architecture. I have recently asked readers to talk about the issue of HACMP by phone or email. Here, I will repost an article from IBM, which is very well written and accurate. It is a lot better than what I said. Everyone will benefit from reading it! Wen Ping Detailed explanations on oracle large database systems in AIX

1. Check Hardware requirements The system must meet the following minimum hardware requirements: At least 1024MB of physical memory The following table describes the configuration relationship between physical memory (RAM) and swap area (swap space) at installation time. RAM Swap Space 1024 MB to 2048 MB 1.5 times times RAM 2049 MB to 8192 MB equals RAM is greater than 8192 MB 0.75 times times RAM At least MB of free disk space in/tmp directory 1.5 GB to 3.5 GB disk space is used to ins

? Configure the Flashback database? Perform a flashback database operation? Monitoring the Flash back database Flash back to the database Flash back database operation:? Functions like a rewind button for a database?

background: recently contacted with Oracle, previously used by MySQL, so not too understand, documenting the knowledge of OracleOracle's account operation:Note: To create a user and delete a user and authorization, the general user does not have permissions, it is recommended to use the Superuser system, if there is a careless small partner and I forgot the System account password, the back will say how to change the passwordMany SQL files or DMP file

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Friends who are interested in this course can add my QQ2059055336 and contact me.This course focuses on Oracle RAC architecture and how it works, understanding and mastering the relevant technologies under the RAC database, such as cache Fusion, Failover, load balance, FAN, OCR, and voting disk. Through the implementation of the VMware virtual environment, the installation and deployment of RAC

The Oracle tutorial you are looking at is a number of ways to optimize the design of Oracle library tables. ObjectiveThe vast majority of Oracle database performance problems are caused by unreasonable database design, only a small number of problems rooted in db Buffer, Sha

free space on the remote server is larger than the total DMP file capacity of the current day on the local server, copy the DMP file to this disk, otherwise, Just execute the continue command in the Else statement, which jumps out of the inner for Loop, reads off a disk, and copies the DMP file to the next disk.Then, the SCP command during the execution of the replication progress percentage is changed at all times, the process is not directly writte

oracle| Design | Optimization Preface The vast majority of Oracle database performance problems are caused by unreasonable database design, only a small number of problems rooted in db Buffer, Share Pool, Redo Log buffer and other memory module configuration unreasonable, I/O contention, DBA responsibilities, such as C

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generation level for system components. User accounts can be unlocked through the Web UI. Newly added built-in reports: Oracle Database Vault Report, summary reports, IRS compliance reports, reports correlate Database Audit Events W ITH OS users, used su or to sudo execute commands. The host monitor and audit Vault agent details are added to the Host tab in the

This article describes Oracle's query optimizer, a key component of the database, which gives Oracle users excellent performance. Oracle's query optimization technology is unmatched in functionality, and this article discusses all the important areas of query optimization in detail. Brief introduction What is the query optimizer. Query optimization is critical to the performance of relational databases, esp

Linux System installation Oracle Recently learned Oracle Database, the installation problem took a lot of time, online also consulted a lot of documents, at the same time, according to their own experience, summarize The installation steps of Oracle databaseExperimental environment:RedHat 6.5 x86_64

Tags: routines class HTTP DMI hint Art sys ICA ORAThe recent deployment of the project with WebLogic, together with an Oracle database, then encountered a problem today: multiple users connected to the database connection was unsuccessful, sometimes prompted to be locked, and checked to find that on the one hand the connection pool configuration of the WebLogic c

Label:Because of Microsoft in the. NET Framework 4.0 has decided to revoke the use of System.Data.OracleClient, resulting in the inability to connect to the Oracle database in VS2010, but it still exists in the. NET schema and we can refer to it by ourselves C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.OracleClient.dll to gain support for Oracle data

you can adhere to the index of this program planning, you can promptly reclaim those unused space, improve space utilization. Iii. Defragmentation of segmentsWhen a database object is generated (a table or an index), the table space is specified for it either by the user's default value or by the specified value. A segment generated in a tablespace that is used to store related data for an object. The spac

this program planning, you can promptly reclaim those unused space, improve space utilization. 　　Iii. defragmentation of segments When a database object is generated (a table or an index), the table space is specified for it either by the user's default value or by the specified value. A segment generated in a tablespace that is used to store related data for an object. The space allocated by the segment w