oracle database enterprise manager

Oracle Database basic learning (6) subquery, oracle Database A subquery contains multiple nested query statements in a select statement. 1Use subquery in THE where clause (generally, return "Single Row, single column" Single Row, multiple columns "multiple rows, single column" (in, any, all can be provided )) Example

be executed in SQLPLUS.EXE or DOS (command line),DOS can be performed because the install directory Ora81bin in Oracle 8i is set to the global path,There are EXP.EXE and IMP.EXE files under this directory that are used to perform import export.Oracle is written in Java, Sqlplus. EXE, EXP. EXE, IMP. EXE these two files may be packaged after the class file.Sqlplus. EXE call EXP.EXE, IMP. EXE package, complete the import and export function. An instan

C: \ Documents ents and Settings \ yhy> emca-deconfig dbcontrol DB-repos dropemca started at 2012-10-15 21: 56: 56em configuration assistant, official version 11.1.0.5.0 copyright (c) 2003,200 5, Oracle. All rights reserved. Enter the following information: Database Sid: omg1 listener port: 1521sys User Password: SYS User Password: sysman User Password: Continue? [Yes (y)/NO (n)]: y2012-10-15 21:57:27

The Oracle Database 11g full reference manual contains the contents of the license, as follows: The first step in using the software is to successfully install the software. If you do not consider installing Oracle's hardware and software platforms, you can choose the same type of installation. Although the types between different versions are not exactly the same, they generally include the following:

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to see if you can successfully connect to the database. 4. Finally, through the database instance name, user name, password access to the database. Method Two: Is the Management configuration Tool "Net Manager" using Oracle. Add service naming, In fact, the modificati

............... -----------------------------------------------------------------Do you wish to continue? [Yes (y)/NO (n)]: YAPR 21,200 9 2:23:52 am oracle. sysman. emcp. emconfig performInfo: this operation is being logged at/opt/Oracle/product/10.2.0/export toollogs/emca/orcl/emca_2009-04-21_02-21-41-AM.log.APR 21,200 9 2:24:14 am oracle. sysman. emcp. util. d

Source: http://www.oracle.com/technology/global/cn/pub/articles/cunningham-database-xe.html Oracle Database Xe is not necessarily important to beginners, students, amateurs, or small businesses-it is equally attractive in many other cases. Released in March 2006 Unless you do not read the news at all, you may have heard of the production version of

What is the Oracle database shutdown and startup command ?, Oracle commandsPreface Log on to sqlplus with sysdba and run the following command. On windows, the background processes that constitute instances in oracle are implemented by threads derived from the oracle service

Flash back database operations in Oracle Database 10 GB You can use flashback database to restore the database to a previous time point or an SCN number.In versions earlier than Oracle10g, to restore the database to a previous tim

manual I/O adjustment (avoiding hot spots by dispersing database files. ASM helps DBAs manage the dynamic database environment, allowing DBAs to adjust the storage allocation without shutting down the database while expanding the database scale. ASM allows DBA to define a storage group (called a disk group ). Then, th

As a qualified Oracle Database Administrator, pay close attention to issues related to Oracle databases that may affect the availability or performance of each system they manage. Under normal circumstances, we can divide database administrators into two ways to monitor and maintain the system: reactive monitoring and

client operating system for verification. It cannot distinguish whether zl is a domain name or a machine name. Windows authentication on the Oracle database server is easy to implement and makes it easy for logged-on users to access the database. However, this authentication model is not suitable for remote clients because of the high security risk. Iii. Enhance

In Oracle Database Operations, we often need to start or close some services to implement the functions we need. But the premise is that we must understandOracle Database ServicesIf you are not familiar with Oracle database services, it doesn't matter. In this article, we wi

connected to two databases at the same time. This 1521 record exists because the local database t01 exists before the test Library (t02) is created) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC )(KEY= EXTPROC1 )) (ADDRESS = (PROTOCOL = TCP) (HOST = PC1255-20110528) (PORT = 1521 )) (ADDRESS = (PROTOCOL = TCP) (HOST = PC1255-20110528) (PORT = 1522 )) ) ) Tnsnames. ora If we want to use tns for connection, we als