Diagnose Oraclehighversioncount (high-version cursor) Problems

What is highversioncursor )? The number of versions of a specific cursor is not clearly defined in the previous version. What is high version cursor )? The number of versions of a specific cursor is not clearly defined in the previous version.

Solution to Oracledbstart failure

Solution to Oracledbstart failure to start normally [oracle @ CentOS-1 ~] $ DbstartORACLE_HOME_LISTNERisnotSET, unabletoauto-startOr Oracle dbstart cannot start normally solution [oracle @ CentOS-1 ~] $ Dbstart ORACLE_HOME_LISTNER is not SET, unable

Oracle backup recovery (expdp/impdp)

Oracle backup recovery (expdpimpdp) 1. Create the directory SQLgt; createdirectorydump_fileaslsquo; dbbackuprsquo; 2. Assign permissions to the directory Oracle backup recovery (expdp/impdp) 1. create the directory SQLgt; create directory dump_file

Installation of OracleDatabase12C in Linux

In Linux, OracleDatabase12C is installed. After the installation, OracleConfigurationManager fails to be properly installed. This does not matter. Install Oracle Database 12C in Linux. After the installation is complete, Oracle Configuration Manager

Does Operations on blob fields in Oracle produce a large number of redo operations?

Check whether the blob field produces a large number of redo operations. The answer is no. Here is an experiment to test whether the Oracle database version is 11.2.0.1.0: Check whether the blob field produces a large number of redo operations. The

Solution to ORA-12520 errors

ORA-12520 listeners cannot find available handlers for the requested server type ORA-12520 listeners cannot find available handlers for the requested server type ORA-12520 listeners cannot find available handlers for the requested server type I

RAC client connection TNS-12547: TNS: Lost connection

Set tcp. validnode_checking to no in the sqlnet. ora file. Then restart the database and service on the vbrake. Set tcp. validnode_checking to no in the sqlnet. ora file. Then restart the database and service on the vbrake. MOSOracle E-Business

Besides, table_id in MySQL

Recently, a master-slave data inconsistency occurred in an online instance, that is, data loss from the slave database. Root Cause: Because of table_list-gt; table_id is uint, and m_table Recently, a master-slave data inconsistency occurred in an

OracleManagementServer startup and Configuration

When logging on to OracleManagementServer according to the document, the first login is successful. If you log on again after shutdown, the following error may occur: domain name resolution error or login denied error. Error cause When logging on to

Build a mysql-mmm high-availability MySQL Cluster

Lab requirement: MySQ Experimental requirements: Configure mysql-mmm to achieve mysql High Availability MySQL-MMM to achieve MySQL High Availability http://www.linuxidc.com/Linux/2014-02/96994.htm MySQ Lab requirement: Configure mysql-mmm to

Build the phpMyAdmin Management Platform in CentOS6.5

Lab requirement: Build mysql Graphics Management Tool Linux on the server: CentOS6.51. simple deployment of LAMP platform # yum-yinstallhttpdmysqlmysql- Lab requirement: Build mysql Graphics Management Tool Linux on the server: CentOS 6.5 1. Simple

Use RMAN automatic backup to dump Spfile

The above process is the spfile file generated through automatic backup of rman. This method is applicable when the parameter file of the server is lost, and it is necessary to ensure that rman sets the control file's The above process is the spfile

Oracle10gStream table-level replication Configuration

This experiment in the vmware9.0 environment, the installation of the operating system CentOS-6.4-x86_64, database version is ORACLE10g10.2.0.1, the source Library and the target library are installed with the database This experiment in the vmware9.

Install MySQL under Ubuntu14.04

I installed MySQL in Ubuntu14.04 today. I used to download the installation package from the official website, but it cannot be used after installation. I guess I want to configure it. I found a lot of information on the Internet. I installed MySQL

Oracle selection under Wrong file name

From the dba_data_files view, we can see that all other data files comply with the OracleOMF feature and create files under the db_file_create_dest directory. Specified Error Path From the dba_data_files view, we can see that all other data files

Migrate data files in the file system to the ASM Storage

The RAC environment uses ASM for storage. Recently, some data files are stored in the file system during database maintenance, which is abnormal. Cause another The RAC environment uses ASM for storage. Recently, some data files are stored in the

Solution for bringing out ORA-28001 at the same time by ORA-28000

Today, you can not log on to the tomcat front-end interface, view the log found that the original is ORA-28001: thepasswordhasexpired error, this error is due to Or Today, you can not log on to the tomcat front-end interface, view the log found that

Notes for transferring spfile and pfile in RAC Environment

To maintain the RAC environment, do not use ldquo; createpfilefromspfile; rdquo; To create a PFILE. The reason is that in the RAC environment, S To maintain the RAC environment, do not use ldquo; create pfile from spfile; rdquo; To create a PFILE.

11.2 how to access the environment ASM instance spfile In the ASM disk group

11.2 how to access the environment ASM instance spfile In the ASM disk group 11.2 how to access the environment ASM instance spfile In the ASM disk group On the ASM instance of 11.2, execute show parameter spfile:[Grid @ rac1 ~] $ Sqlplus/as

OracleLinux6.3 install Oracle11gR2 notes

For ease of use, the Vbox virtual machine is selected for this installation. The operating system is OracleLinux6.3, And the Oracle is 11gR2. Oracle installation, the documentation on the official website is very detailed, so, For ease of use, the

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