causes of pvcs

the log application is still normal after the read-only application state open standby--View Dataguard status[Email protected] trace]$ DGMGRL sys/oracleDGMGRL for Linux:version 11.2.0.3.0-64bit ProductionCopyright (c), Oracle. Allrights reserved.Welcome to DGMGRL, please type "help" for information.is connected.Dgmgrl> Show ConfigurationConfiguration-WebDBProtection mode: maxavailabilityDatabase:WEBDB-master DatabaseWEBDB2-Physical Standby databaseQuick Start Failover: DISABLEDConfiguration Sta

time, finally found a post, http://stackoverflow.com/questions/28076200/ Hive-drop-import-delims-not-removing-newline-while-using-hcatalog-in-sqoopit means to use the--map-column-java parameter to display the specified column as a string type. My solution for--map-column-java my clob column =string sure enough, the problem is solved, the line break is all removed. However, I heard that changing the storage format may also avoid this problem, and I hope the great God with experience can answer i

in the environment variables of the operating system:Set path.PATH=C:\instantclient-basic-windows.x64-12.1.0.2.0\instantclient_12_1;E:\oracle\product\10.2.0\db_1\bin;1The top priority should be high.As for what Oracle_home, it seems that there is no egg to use. It's not clear what the eggs are for. On the Internet to copy some, first write down:ORACLE_BASE、ORACLE_HOME有什么区别ORACLE_BASE下是admin和productORACLE_HOME下则是ORACLE的命令、连接库、安装助手、listener等等一系列的东东。这只是ORACLE自己的定义习惯。ORACLE_HOME比ORACLE_BASE目录要更深一些。

Label:1. Modify the value of the initialization file as an error -- Error modifying SQL> alter system set db_block_buffers= scope=spfile; The system has changed. SQL> shutdown Immediate database is closed. The database has been uninstalled. The ORACLE routine has been closed. SQL> startup ORA-00824: Cannot set sga_target or memory_target due to Existing internal settings ORA-00842: Db_block_buffers cannot bes set with Sga_target or Memory_ TARGET 2. Generate Pfile files from SPFile Sql> create

Tags: node configuration mys update node feature date MySQL data directly1, from the library only to open the Log-bin function, do not add log-slave-updates parameters, the data from the library copied from the main library will not be written to the Log-bin log file.2. When writing data directly from the library, it is written to the Log-bin log.3. When the Log-slave-updates parameter is turned on, data copied from the library from the main library is written to the Log-bin log file. This is al

Today, when editing the function of the article found a problem, edit and save the completion of the current article to jump to the address, the results of 404, the break point found when the query database Mongodb.open method failure. Baidu after found the reason:Edit save when the database opened, but not closed, the next query when the database is open state, resulting in a query failure.Why Mongodb.open after no close operation can not open again, follow-up study and then add.Mongodb.open fa

according to the actual situation, the connection onceArchived logs under Oracle can be used for data recovery in the event that other online logs are lost, so they are typically turned on in the production environment, but if some unused or historically archived logs are not cleaned up, a full flashback zone will cause a connection exception. Of course, you need to pay attention to clean up Oracle's archive log cleanup, and write a script that cleans up Oracle's archived logs on a daily schedu

command lineInterfacecan be insecure. Welcome to the MySQL Monitor. Commands End With; or \g. Your MySQL Connection ID is 2487Server Version:5.6. *-log MySQL Community Server (GPL) Copyright (c) -, ., Oracle and/or its affiliates. All rights reserved. Oracle isA registered trademark of Oracle Corporation and/or its affiliates. Other names trademarks of their respective owners. Type'Help ;'Or'\h' forHelp. Type'\c'To clear the current input statement. MySQL> Since the error 1045 (28000) on th

/oracle/aa.ora ';File created.sql> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.Sql> StartupORACLE instance started.Otal System Global Area 129724416 bytesFixed Size 1334996 bytesVariable Size 113246508 bytesDatabase buffers 8388608 bytesRedo buffers 6754304 bytesDatabase mounted.Database opened.Sql> Show parameter SPFile;NAME TYPE VALUE------------------------------------ ----------- ------------------------------SPFile string/u01/app/oracle/product/11.2.0Thi

Log_file_name_convert parameters can have "+" (that is, plus), this time encountered a very strange problem. Plan to find a time window, the above two parameters to change the second half to "+data", completely let ASM to manage.Deliberately recorded here.-------------------------------------------------------------------------------------------------This article is from my technical blog http://blog.csdn.net/robo23Reprint please mark source text link, otherwise investigate legal liability!Db_f

before the DBA installation of the uncheck, such as:Because the Enable automatic maintenance task is unchecked, the data installation executes the following command, causing the job to disable:Execute dbms_auto_task_admin.disable ();In the future, if you need to start the automatic maintenance task, just execute the following command:Sql> execute dbms_auto_task_admin.enable ();PL/SQL procedure successfully completedSql> select Window_name,autotask_status from dba_autotask_window_clients;Window_

DELIMITER $$Use ' u2_test10 ' $$DROP PROCEDURE IF EXISTS ' pro_apply ' $$CREATE definer= ' root ' @ '% ' PROCEDURE ' pro_apply ' (in aid int,in UID Int., inreas CHAR () CHARACTER SET UTF8)//char ( 50) This only urf-8BEGINDECLARE score INT;SELECT COUNT (*) into score from app_apply WHERE appid= aid and Applyuserid=uid;IF score = 0 ThenINSERT into app_apply (appid,reason,applyuserid,applytime, ' status ') VALUE (Aid,reas,uid,now (), 0);ELSEUPDATE app_apply SET reason=reas, status=0 WHERE appid=aid

> ALTER TABLE history_uint_new Type=myisam;Import the original table data into the newly created table;mysql> Insert into history_uint_new select * from History_uint;Mysql> exitComment out Innodb_force_recovery=1 in my.cnf and restart MySQL[Email protected]/]#/etc/init.d/mysqld restartModify the new table engine to InnoDBMysql> Use ZabbixAlter table History_uint_new Type=innodb;Delete the original tablemysql> Drop table History_uint;Change the name of the new table to the original table and refr

≤8) Ext_size Size of the extents, in page units object_id The ID of the database object index_id Represents the type of the data object Partition_number Partition code Rows Approximate number of rows of data hobt_id Storage unit ID of the heap or B-tree where the data is stored Let's find a database to look at the fragmentation situation:You can see that the arrows refer to

Tags: How to tab Statement Explorer Properties view SSI where stepThe key to solving this problem is finding SQL statements that cause high CPU usage. The steps are as follows:1. Use the Process Explorer tool to view the Oracle process, double-click the Oracle process, and view the high CPU thread number (TID) In the Threads tab of the pop-up Properties window.2. Execute the following SQL statement in the PL/SQL tool:--Get the corresponding SQL statement (Sql_text,sql_fulltext) based on sql_idSE

The following error occurred using pod install:Macdemacbook-pro:qrcodedemo mac$ pod Install-bash:/usr/local/bin/pod:/system/library/frameworks/ruby.framework/versions/2.0/usr/bin/ruby:bad interpreter:no Such file or directoryThis is caused by Mac upgrade system, don't forget to update cocoapods when your Mac system is upgraded to high Siera.Execute command:$ sudo gem update--system$ sudo gem install Cocoapods-n/usr/local/binMAC-System upgrade causes c

Label:Query 1) Select * From test; No1 NO2 1 1 2 2 3 3 4 4 5 5 Query 2) select @wokao:= (no1 + no2), @wokao from test group by no1; No1 NO2 2 2 4 4 6 6 8 8 10 10 Query 3) select @wokao:= (no1 + no2), sum(@wokao) from

One day restart a Linux virtual machine, half a day not up, F5 view, there are error: Failed to load SELinux policy. Freezing. Is the SELinux set wrong? It is estimated that.Restart on the Start page, select the kernel to start, press E, go to the Grub edit page, find linux16 that line, after language is LANG=ZH_CN. UTF-8, Space plus selinux=0, and then ctrl+x start, see the familiar login interface. View SELINUX configuration file, selinux=enforcing, Selinuxtype changed to disabled! Fix it righ

))(Sid_desc =(Global_dbname = CORCL)(Oracle_home = D:\oracle\product\10.2.0\db_1)(Sid_name = CORCL)))4. Save the file, restart the service Tnslistener, log in successfully!Login successfully from CMD windowConn Sys/[email protected] as SYSDBA;Then start the database through PfileStartup pfile= ' D:\oracle\product\10.2.0\admin\dbs\pfile\init.ora ';Start successfully, and then create the SPFileCreate SPFile from pfile= ' D:\oracle\product\10.2.0\admin\dbs\pfile\init.ora ';Restart the database, OK,

warnings:03. Check the table again : There is no foreign key foundmysql> desc TEST6;+-----------+-------------+------+-----+---------+-------+|Field |Type |Null |Key |Default | Extra |+-----------+-------------+------+-----+---------+-------+|ID |Int (11) |YES ||NULL | ||Test_name |varchar (32) |YES ||NULL | |+-----------+-------------+------+-----+---------+-------+2 rows in Set (0.01 sec)The reasons are :Obviously this is a bug in MySQL:1.MYSQL after the foreign key is built, an index with th