Oracle

In the actual IT project management, the management of the database is particularly important, in general, the management of the database will have the DBA staff in the company to be responsible. But what if you don't have to contact the DBA about

A data table is basically difficult to meet our query requirements, at the same time, all the data are saved in a table is obviously not a good database design, in order to avoid data redundancy, delete, update the exception, we usually need to

New PC Software Installation sequence: Iis-vs (server does not install VS can install. netframework)-office-DatabaseThe Oracle installation is divided into servers and clients, and the server can be installed in either the service or the virtual

In order to handle the information obtained by the SQL statements, Oracle must allocate a region called the context to handle the above information. A cursor is a handle or pointer to a context, and PL/SQL can control the information that is

The failure of the head verification is due to the different version number, the experiment can be modified by the following methods: Open the DMP file with the notepad++ tool, you can see the header information--texport: V11.01.00, which is the

The first step is to download Oracle:：Oracle official website user name and password: (You do not want to note can use the following)User:[email protected]Pass:qwe123qweTo thank http://www.blogjava.net/wangdetian168/archive/2011/03/01/345428.html

Dataguard provides two different ways to apply logs to the standby database: Redo apply (physical standby), SQL apply (logical standby).The main goal of DG is to protect database data from loss. Another goal is to provide a high degree of isolation

Transferred from: http://blog.itpub.net/271063/viewspace-1061279/--Connect database Create test user--Connected to Oracle Database 12c Enterprise Edition Release 12.1.0.1.0--Connected as [email protected]_192.168.56.120Create user Scott identified

The Dataguard operation principle is very simple: transfer logs, application logs. Represents the basic architecture of DG650) this.width=650; "Title=" DG. PNG "alt=" wkiol1w-gytxgwmtaafzjosfyge543.jpg "src=" http://s3.51cto.com/wyfs02/M00/70/C6/

Let's start with a full-library backup. rman> run {  backup database   format  '/backup/full_%d_%T_%s '   plus archivelog   format  '/backup/arch_%d_%t_%s '   delete  all input; } starting backup at 2015/07/09 09:35:03current log  archivedusing 

Environment Introduction:User test01 CREATE table tab01, user test02 create table tab02. TEST01 Update TAB01 not submitted, test02 Update table TAB02 not submitted. Then test01 updates the table tab02 under Test02, at which time there is a lock

This week, our new colleagues in the Department shared the Oracle implementation methodology, focusing on the launch of the project and highlighting where Oracle is different from us. The harvest is quite abundant, the summary of a few worthy

1 Introduction Oracle Official Network: Http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10727/strmover.htm The Oracle Stream feature is designed to improve the high availability of the database, which is known as the Advance

This machine: 192.168.0.1Remote host: 192.168.0.2(1) Tnsnames.ora configuration on this machine is as followsOrcl_2 = (DESCRIPTION = (Address_list = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.0.2) (PORT = 1521))) (CO Nnect_data = (service_name =

1. Character types Data type Length Description CHAR (n Byte/char) Default 1 bytes, maximum n value is 2000 Padding at the end to reach the specified length, exceeding the maximum length error. The

Online a lot of peers should have encountered this problem, Baidu a search-based treatment method, is to increase the number of processes.But my side of the situation is not the same, because my Oracle 11g is just installed in the morning, with this

The provider isn't compatible with the version of Oracle clientProvider is incompatible with this version of Oracle clientKeep all files in the installation folder. Then put my very small application (need to access the remote Oracle database) in

First of all. The problem-solving method can be e.g by using the ALTER user username identified by password.1 ALTER USER by PBMsEnter the following command:1 Select * from where profile='DEFAULT' and resource_name= 'password_life_time'The results

If you are reinstalling Oracle and the Setup program is running, please close it first.Full Uninstall:1, stop all Oracle Services 2, through the Start menu Oracle installation products, Universal Installer Run the Oracle Uninstall Tool 3, run the

(1) connection command :1 "Conn[ect]: Usage, conn username/password @ NETWORK SERVICE name [as Sysdba/sysoper], when connected as a privileged user, must bring as SYSDBA or as SysoperSql> Conn Sys/lipeng @orcl as SYSDBA;2 "Disc[onnect]: This command