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Overview of Oracle DB partition features Overview of Partitions Overview: in Oracle databases, partitions can break into very large tables or indexes into small, manageable blocks ), these blocks are called partitions ). each partition must have the same logical structure, such as the column name, data type, and constraints. However, each partition can have its

Oracle 10G New Features-- RMAN Author: Fuyuncat Source: WWW.HelloDBA.COM The Rman incremental backup scheme, offline recovery of incremental backups, recovery previews, recovery from Resetlogs, file compression, and so on, become more powerful.Most people agree that Rman is the de facto database backup tool for Oracle. Although earlier versions of

Overview of Oracle EBS WMS Features (i)(Copyright notice, I original or translation of the article to be reproduced, such as reproduced for personal study, please specify the source; otherwise please contact me, violators will investigate)Oracle WMS is warehousing, a component in Oracle's advanced supply chain and manufacturing solutions that is not entirely equi

information, this feature can package information related to an event. And you can also send packaged information to the Oracle support team. 6, based on the characteristics of the patch (Feature Based patching) This feature makes it easy to distinguish between the features in a patch package that you are using and that you have to play. Enterprise Manager (EM) enables you to subscribe to a feature-based

During the historical data transfer-out test, through continuous optimization, including SQL adjustment and database adjustment, we can see from AWR that it is basically difficult to improve performance, so we are ready to try it. During the historical data transfer-out test, through continuous optimization, including SQL adjustment and database adjustment, we can see from AWR that it is basically difficult to improve performance, so we are ready to try it. 1. Order During the historical da

Oracle Recovery Management (RMAN) has a number of features that can be used to help with the backup and recovery process, which has two versions of the command line and GUI. Typically, RMAN performs and standardizes the backup and recovery processes and, by doing so, reduces the errors that DBAs make during this process. The main functions of RMAN are as follows: Back up databases, tablespaces, data files,

1. relink script description in 11gr2 The two blogs of oracleoption and its link are described as follows: Oraclebinary options description Http://blog.csdn.net/tianlesoftware/article/details/7577637 Description of relink binary options for a single oracle instance Http://blog.csdn.net/tianlesoftware/article/details/7577652 From 11gr2 (11.2.0.1, 11.2.0.2 etc ...) the relink script no longer scans *. MK files andno longer runs the make commands (tha

The so-called job is better than job. It is about the new features of oracle after 10 Gb.Scheduler. In10gIn the environment, we recommend that you use scheduler to replace common jobs.ManagementTask execution. In fact, it is too one-sided to describe scheduler as a tool for Job Management. The new scheduler in the 10G version is not just as easy as creating a task .... Tip: the management of scheduler in

disconnect;Database altered.--View the role of the current standby databaseSql> select Open_mode,database_role from V$database;Open_mode Database_role-------------------- ----------------READ only with APPLY physical STANDBY--View the test table that was built at snapshot standby no longer exists.Sql> select * from scott.test02;SELECT * FROM scott.test02*ERROR at line 1:Ora-00942:table or view does not existNote:The physical standby is the highest protected mode (maximum protection) and cannot

" sysdate {data record creation date}{}{} catalog metadata file_cataloguemetadata catalogueid catalog number varchar2 50 no Yes {catalog number}{}{} file_catalogue id catalog metadata file_cataloguemetadata metadataid meta Data number nvarchar2 50 no Yes

Overview of Oracle EBS WMS features (ii)(Copyright notice, I original or translation of the article to be reproduced, such as reproduced for personal study, please specify the source; otherwise please contact me, violators will investigate)Shipping Logistics Logic mainly includes1. Packaging, can be multi-layered nested packaging, and inform the user to order the special packaging method. Packaging can be d

Oracle 12C r2-new features-pdb disk I/O (iops,mbps) resource managementIn previous versions, there was no easy way to control the amount of disk I/O used by a single PDB. As a result, a PDB may run out of disk I/O and affect the performance of other PDB in the same instance. The Oracle 12c R2 can control the amount of disk I/O used by the PDB and is more harmonio

Introduction: Oracle 10gThe availability is much higher than the previous version.Virtual Private DatabaseThe working method is to provide users with a local view of the table based on a series of defined standards by transparently changing requests for data. During running, all queries are appended with a predicate to filter the rows that the user can see. For example, if you are only allowed to view the account administrator SCOTT's account, VPD aut

Guidance:BecauseOracle Database BackupThere are three methods, each of which has different recovery features. Therefore, you should integrate database and file system backup, integrated logical backup and physical backup. I. Backup Policy 1. At the operating system level, a large disk array is used to automatically distribute each database file on each physical disk through the disk image technology. In this way, when a disk is physically damaged, the

In our actual application, there are three standard backups in the Oracle database that we often use. That is, EXPORT and IMPORT (EXPORT/IMPORT), cold backup, and hot backup. Exporting backup is a logical backup. This method involves reading a series of database logs and writing them into files. The reading of these logs is not related to the location. Cold backup and hot backup are physical backups (also known as low-level backups) that involve the

provides AWR features that Ash collects session information as part of the snapshot information in Awr and is saved to a file. Generation of the Ash report, Oracle provides scripting: Ashrpt.sql: Generates a statistical report for a specified period of time, which requires you to enter the start time and then enter how long it will last. Ashrpti.sql: Generates a statistical report for a specified period of

Introduction In. NET applications, there are many ways to achieve access to Oracle databases. However, from functional and performance analysis, Oracle Data Provider for. NET (odp.net) is undoubtedly our best option, a set of interfaces designed by Oracle specifically for. NET applications, which are accessed much faster than other methods. This article will in

; INSERT INTO invisible_t (ID,NAME,PASSWD) VALUES (1, ' Andy ', 1);1 row created.sql> INSERT INTO invisible_t (Id,name) VALUES (2, ' andy02 ');1 row created.3. Query statusSql> select * from invisible_t;ID NAME---------- --------------------1 Andy2 andy02Sql> select Id,name from invisible_t;ID NAME---------- --------------------1 Andy2 andy02Sql> select id,name,passwd from invisible_t;ID NAME PASSWD---------- -------------------- --------------------1 Andy 12 andy024. Modify field to visible or

Before 11g, add a field with default value, the implementation principle is as follows:ALTER TABLE T1 add C1 varchar2 (a) default ' XX ' NOT null;Assuming that the T1 table has 40 million rows of data, Oracle returns a "Success Prompt" to the user when it executes the above DDL statement while updating the 40 million rows of data successfully. The following issues may be caused:1. Updating 40 million rows of data takes a long time to complete.2. Exhau

New Features of Oracle 10 GB-code obfuscation Author: Fuyuncat Source: Www.hellodba.com Before Oracle 9i, a command 'warp' was provided to encrypt the code. However, it is based on scripts in the command line mode. In 10 Gb, the Oracle package dbms_ddl provides a new function create_wrapped to