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Try to delete sqlplus using SQL commands. If the deletion is successful, everything is fine! However, when a deadlock occurs Try to delete sqlplus using SQL commands. If the deletion is successful, everything is fine! However, when a deadlock occurs

After installing the MySQL-5.1.62 today, login to view the user, found four mysqlgt; selectuser, hostfromuser; + ------ + -------------- + | user After installing the MySQL-5.1.62 today, log in to view the user, found four mysqlgt; select user, host

I have published an article on IMPEXP before. If you are interested, please first understand: expimpdata migration www.linuxidc.comlinux2013-0583810.htm exp I have published an article on IMP/EXP before. If you are interested, you can first

Describes the process of installing Oracle10201 on AIX. First check whether the system meets the database installation needs: # usrsbinlsattr-E-lsys0-arealmemrealmem Describes the process of installing Oracle10201 on AIX. First, check whether the

1: a power outage occurs on the weekend. The newly configured Intranet Test Database activedataguard is automatically disabled. After the master database is started this morning, the following error is reported: [Oracle @ db1 ~] $ Sqlplus 1: a power

1. dba, sysdba, and sysoper are different roles. roles can include system permissions, object permissions, and roles. dba does not include sysdba and sysoper permissions. sysdba, 1. dba, sysdba, and sysoper are different roles. roles can include

This is a bit difficult. Because I used php-fpm for nginx and php for the first time, mysql also used a third party to modify mysql (www.percona.com is an enhanced version of mysql and a dba recommended to me ). This is a bit difficult. Because I

Almost all internal changes that occur in oracle are recorded in onlineredologfile. oracle uses these redologgroups to restore the database, so they are Almost all internal changes that occur in oracle are recorded in the online redo log file.

The MySQL master-slave replication structure is based on the mysqlbin-log. The slave database receives the bin-log incremental information of the master database by opening the IO process and saves it to the local relaylog. The MySQL master-slave

My current system is Ubuntu12.04amd64, which has two users: root and wwr. The following installation steps are performed under the wwr user. Download the corresponding Orac from the Oracle Official Website My current system is Ubuntu 12.04 amd64,

Restoration After all Oracle11gRACASM disks are lost, oracle11.2.0.3racon1_lelinux6x86 _ 64, with only one external redundant ASM disk mdash; m Oracle 11g rac asm disk recovery after all loss, Oracle 11.2.0.3 rac on Oracle Linux 6 x86_64, only one

For rpm PerconaToolkit installation, the modules that require perl are determined based on their own system environment or the errors encountered during the installation process. To install Percona Toolkit in rpm, you need to install perl based on

If the Opened_tables status variable is large or growing, it may be because the table cache is not large enough, you can manually add the table_cache system variable (or in MySQL5.1 If the Opened_tables status variable is large or growing, it may be

Trigger is similar to procedure and function, but it cannot be displayed and called. It can only be triggered by an event and then automatically called by oracle. Trigger is similar to procedure and function, but it cannot be displayed and called.

Oracle special symbol processing, today encountered a problem, colleagues using dynamic SQL generated insert statement, which contains symbols, when doing insert, this symbol is used as Oracle special symbol processing, today encountered a problem,

After using USER1 and other users to log on to Oracle, create a view and prompt ldquo; the permission is insufficient. How can this problem be solved? This is because the account USER1 does not currently create a view. After using USER1 and other

The final component of the oracle database architecture is reflected in the physical files stored on the disk. oracle has several types of data files, each of which has different purposes. The final component of the oracle database architecture is

The following is the official Oracle Database, which is listed here. We hope to reduce the search time. Download it now ~ The following is the official Oracle Database, which is listed here. We hope to reduce the search time. Download it now ~

DataGuard is now the mainstream disaster tolerance solution. Due to its strong adaptability to the network, it can adopt synchronous real-time transmission and asynchronous delay transmission modes. Data Guard is now the mainstream disaster

If undo damage is unfortunately encountered in Oracle running, the best way to do this is to completely recover it. However, if there is no backup, you can use an unconventional method (using Oracle's If undo damage is unfortunately encountered in