oracle 11g jdbc

The source of this article, in order to facilitate direct copy over. If there is infringement, please inform, thank youhttp://blog.csdn.net/chiclewu/article/details/14646687An Oracle 11g 64-bit version was installed in the virtual machine today, and when connected with PL/SQL developer, it was found that there was no database connection to TNS.It is considered that the PL/SQL developer does not recognize th

is completecan use Sqlplus to test, the new Open a command window, enter the Sqlplus, and then enter the user name and password, you can test, here do not do too much introduction.Configuring monitoring and local network services1) in Oracle User's graphical interface Oracle user, the new terminal is opened, the input command NETCA will pop up the following interface.2) Create a listening service (acting a

of the Tnsnames.ora file. For example, my machine is: d:/instantclient_11_2/network/admin4, set the language of Oracle, add the environment variable Nls_lang, the value is simplified Chinese_china. Zhs16gbkAssuming that the Oracle language of the remote database is unclear, SSH or telnet to the remote machine, enter in the command interface, and connect to the database with the command line.SELECT * from N

example, my machine is: d:/instantclient_11_2/network/admin4. Set the Oracle language, add the environment variable Nls_lang, and the value is simplified Chinese_china. Zhs16gbkIf you do not know the Oracle language of the remote database, you can ssh or telnet to the remote machine, enter it at the command interface, and connect to the database using the command line.SELECT * from Nls_instance_parameters;

/yum.repos.dMV Centos-base.repo Centos-base.repo.bakwget Http://mirrors.163.com/.help/CentOS-Base-163.repo or wget Http://mirrors.sohu.com/help/CentOS-Base-sohu.repoRun the Yum Makecache build cache4 Console page Some of the text on the button is garbled solution (such as login screen: Login button) Workaround: EM garbled is caused by Java, the EM button is generated by the Java diagram, Oracle 11g using th

, Oracle. All rights reserved.Connect:Oracle Database 11g Enterprise Edition Release 11.1.0.6.0-64bit ProductionWith the Partitioning, Real Application Clusters, OLAP, Data MiningAnd Real Application Testing optionsSQL> shutdown the immediate database has been disabled. The database has been detached.The ORACLE routine has been disabled.SQL> startupThe

Label:Oracle 11g XE is a free version of Oracle database that supports most features of the Standard Edition, and 11g XE offers Windows and Linux versions.As a free Oracle database version, XE's limitations are: Maximum database size is one GB Maximum memory available is 1G Only one XE instance can be

1. directpath reads description In versions earlier than Oracle 11g, if a full table scan is performed on a large table, the wait event is: DB file scattered read; in 11g, if a full table scan is performed on a large table, wait event is: direct path read; that is, in 11 GB, full table scan of large tables directly reads data blocks into the PGA region of the se

This article will share with you the Problems and Solutions encountered when installing Oracle 11g on Windows 7. First, on the Windows 7 flagship edition, the Oracle 11g prompts the following error when "product-specific precognition condition check: In the first image, we can see that the check fails when

Tags: dump 11g r2 Pat ROR use path Comm limit exportSelection:32-bit memory is a bottleneck, already 64-bit era. Use 64-bit CentOS6 and 64-bit Oracle 11g R2In virtual machine installation, the network is set up by hostonly modeNote: Network adapter to set up ICS (Internet Connection Sharing) to the VMware network Adapter VMnet1So for virtual machines, the gateway

can be fixed, you may need to re-build the DG or Apply the new Standby, and then switch back to the Primary role. Failover may cause data loss due to the fault type of the Primary site.There are many tools for Switchover and Failover. The most common tools are SQL Command, Data Guard Broker, and DB Grid Control. This article describes how to use SQL Command to perform Switchover operations. References: Important configuration parameters of Oracle Dat

Why cannot I enable ADG for Oracle 11g slave database? Today, we have encountered a strange problem, but there is an essential cause and effect behind the strange phenomenon.During an Environment check in the afternoon, it was found that the standby database was in the mount stage. This was a 11gR2 database, and it was a waste of time without ADG. I felt too much to do this.So I tried to start the open stag

Listener.log log for this time period of the Oracle server to see what causes the lock.6.6 Unlocking Database UsersUnder SQL input: Alter user username account unlock;Note: This command can only be performed by a user with DBA authority.6.7 User Profile 6.7.1 action User profile effective switchView: Enter in sql: Show parameter resource;Name is the value of the corresponding value column of the Resource_limit row, and True indicates on, false to clo

This article mainly describes which services are Oracle 11g must be opened and detailed introduction of these services, the need for friends can refer to the followingAfter successfully installing the Oracle 11g database, you will find that your computer is running slower, that your computer is running faster with a lo

An overviewTwo-SQL planning baseline Plan Baseline architectureThree-load SQL plan baselinesFour Evolutionary SQL plan baselinesFive important baseline SQL plan propertiesSix-SQL Plan selectionSeven possible SQL plan manageability ScenariosEight SQL performance analyzers and SQL plan baseline scenariosNine automatically load SQL plan baseline scenariosTen clear SQL Management library policiesA OverviewThere may be a performance risk when a SQL statement's SQL execution plan changes.There are man