Use v $ session_longops to monitor RMAN backup progress

The database backed up this time is a large header with 10 TB data files. However, the management only allows backup using four channels, which directly kills the backup speed. Run the glance command to view the cp The database backed up this time

Install MySQL5.6 using the source code in Linux

MySQL is an open-source database, so it can be installed based on the source code. Source code-based installation provides more flexibility. That is to say, we can choose the appropriate Compilation Method for our hardware platform. MySQL is an open-

Oracle database backup and recovery (expdp and impdp)

Www.linuxidc.comLinux2011-0943892.htm Oracle11g beginner's guide www. linuxidc. comLinux2014-10108041 Http://www.linuxidc.com/Linux/2011-09/43892.htm Oracle 11g beginner's guide http://www.linuxidc.com/Linux/2014-10/108041 Refer: Oracle 11g

Deploy multiple MySQL instances on a single [DELLR720] Server

Deploy multiple MySQL instances on a single [DELLR720] Server 1. Install mysql prepare 1.1 download mysql package mkdir-phomexuekunmysqlcdhomuekun Deploy multiple MySQL instances on a single [DELL R720] Server 1. Install mysql prepare 1.1 download

Troubleshooting of MySQL startup (errno13)

I installed MySQL on the system for testing. Today I found an error when the mysqld_safe process was started, as shown below: [root @ baklocal] # mysqld_safe [1] 2 I installed MySQL on the system for testing. Today I found an error when starting the

Shell script instance for creating a tablespace in Oracle

Shell script instance code for creating a tablespace in Oracle :#! Binbash # ocpyang@126.com # createtablespaceif [$ #-ne2]; thenechoUsage: Shell script instance code for creating a tablespace in Oracle :#! /Bin/bash # ocpyang@126.com # create

Linux-install Oracle11gRAC through DNS Configuration

The IP address of the Linux-DNS server is 192.168.2.98 and the DNS address to be configured is 192.168.2.212. This IP address must be used by no one. Otherwise, an error will be reported when installing the grid. The IP address of the Linux-DNS

Oracle version description

There are many versions in Oracle. First, let's take a look at a version description of 11G: Note: After Oracle9.2, The maintenancereleasenumber of oracle is There are a lot of Oracle versions. First, let's look at a version number of 11G: Note:

MySQL Error Log (ErrorLog)

Like most relational databases, log files are an important part of MySQL databases. MySQL has several different log files, usually including error log files and binary files. Like most relational databases, log files are an important part of MySQL

ORA-27090 error resolution instance

The recent alert Log encountered an error message for the ORA-27090 with the error prompt UnabletoreservekernelresourcesforasynchronousdiskIO. Root The recent alert Log encountered an error message for the ORA-27090 with the error prompt Unable to

The vip address is invisible to the MySQLMMM architecture.

After setting up the high-availability architecture of MySQLMMM (Master-MasterReplicationManager), you cannot see the vip address. After finding a lot of articles on the Internet and observing them at ordinary times After setting up the

Configure Statspack in the OracleRAC Environment

Statspack is a product of the Oracle9i era. It has a cross-milestone significance for monitoring and analyzing database performance and is the predecessor of AWR. After Oracle10g, AWR replaces statspac Statspack is a product of the Oracle 9i era. It

MySQL binary log (BinaryLog)

Like most relational databases, log files are an important part of MySQL databases. MySQL has several different log files, usually including error log files and binary files. Like most relational databases, log files are an important part of MySQL

MySQL slow query log (SlowQueryLog)

Like most relational databases, log files are an important part of MySQL databases. MySQL has several different log files, usually including error log files and binary files. Like most relational databases, log files are an important part of MySQL

Solution to EXP-00091 Analysis of OracleEXP export Error

OracleEXPIMP is an early data backup and restoration tool. It is widely accepted by the industry for its ease-of-use and powerful features. Some development tools (such as PLSQLDevelop Oracle EXP/IMP is an early data backup and restoration tool. It

Memory_target for Oracle initialization parameters

Oracle9i introduces pga_aggregate_target to automatically adjust PGA; Oracle10g introduces sga_target to automatically adjust SGA; Oracle11g Oracle 9i introduces pga_aggregate_target to automatically adjust PGA; Oracle 10 Gb introduces sga_target to

OracleORA-01555 (snapshots are too old)

ORA-01555 snapshot is too old, is a very common error in the database, for example, when our transactions need to use undo to build CR block, and at this time the corresponding undo does not exist ORA-01555 snapshot is too old, is a very common

BitMap indexes are more efficient than B-Tree indexes.

1. Tutorial Description: Operating System: rhel5.4x86 Database: Oracle11gR2 2 2. Procedure: Create a t_btree table and create B-Tr 1. Tutorial Description: Operating System: rhel 5.4x86 Database: Oracle 11g R2 2. Operation Procedure: Create a

Example of Oracle full-text index performance advantages

I. Tutorial Description: Operating System: rhel5.4x86 Database: Oracle11gR2 II. Operation Procedure: 2.1. Create a table t_btree and create 1. Tutorial Description: Operating System: rhel 5.4x86 Database: Oracle 11g R2 2. Operation Procedure: 2.1.

Summary of the OracleRedoLog Mechanism

Oracle's Redo mechanism is an important mechanism of DB. It is also very important for DBAs to understand this mechanism. In the previous Blog, Lin wrote a few articles about it. The last few days, I saw the old white day. Oracle's Redo mechanism is

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