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to Physical STANDBY Failed (ORA-12514: ) Workaround: ==========DG Environment:Dgmgrl> SHOW CONFIGURATION;Configuration-drsolutionProtection mode:maxavailabilityDatabases:Prod1-primary DatabaseSbdb1-physical Standby DatabaseFast-start

1 First of all, of course, is to install Samba:sudo apt-get install Sambasudo apt-get install Smbfs2 Let's share the group read-write folder, assuming you want to share the folder as:/home/ray/shareMkdir/home/ray/sharechmod 777/home/ray/shareBackup

1. The difference between buffer and cache650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M00/8B/64/wKiom1hL2fuxvFDCAAA4AR6R74E921.png-wh_500x0-wm_3 -wmp_4-s_199177087.png the difference between the "title=" buffer and the cache. png "alt="

# Auther:aaron Fan"""Recursive Properties:1.must have a definite end condition2.each time you enter a deeper level of recursion, the problem size should be reduced compared to the last recursion3.recursive efficiency is not high, too many recursive

# Auther:aaron Fan""# Higher order function: A function name, in the form of an argument, is passed to the formal parameter of the function, which is called the higher order function. such as the following formal parametersC, the corresponding

__author__ ="Alex Li"ImportTime#Import TimeModuleUSER,PASSWD =' Alex ',' abc123 '#User name passworddefAuth (auth_type):#CreateAuthfunction, creatingAuth_typeFormal parameters    #print ("auth func:", Auth_type) #Print Formal parametersAuth_typethe

__author__ ="Aaron Fan"ImportTime#Import TimeModuleUSER,PASSWD =' Alex ',' abc123 '#User name passworddefAuth (auth_type):#CreateAuthfunction, creatingAuth_typeFormal parameters    #print ("auth func:", Auth_type) #Print Formal

__author__ ="Aaron Fan"ImportTime#Import TimeModuleUSER,PASSWD =' Alex ',' abc123 '#User name passworddefAuth (auth_type):#CreateAuthfunction, creatingAuth_typeFormal parameters    #print ("auth func:", Auth_type) #Print Formal

Today I want to use the display of their own speakers, suddenly found that the audio output option in the HDMI audio device is gone. It took a while to start using this monitor.Baidu, did not find any clues. Later went to Google to find such a

This article is sponsored by Ilanniweb, starting in Slime Line the world Want to get more articles, you can follow my ilanniweb Recently there is no time to write articles, today, because of the need to install Docker learning virtual container

1. Install MySQL1.1. Install MySQLRPM-IVH http://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpmYum-y Install Mysql-server1.2. Modify the MySQL configuration fileVim/etc/my.cnfDefault-storage-engine =

1. View the system version $ cat/etc/redhat-release2. installing Docker$ yum Install Docker3. Check if the installation is successful$ docker VersionIf the version number of the Docker is output and the installation is successful, the Docker service

SVM is a supervised statistical learning method that minimizes experience errors and maximizes geometric edges, known as the maximal interval classifier, and can be used for classification and regression analysis.First, the basic principleSVM is a

Yesterday, I read Mr. Ruan's lecture on the byte-order article.Http://www.ruanyifeng.com/blog/2016/11/byte-order.htmlRuan Teacher just stated: Computer hardware has two ways to store data: Big endian byte order (endian) and small end byte order

Method One:StartActivity (New Intent (Mainactivity.this, Xxxactivty.class));Method Two:Intent Intent = new Intent ();ComponentName cn = New ComponentName (mainactivity.this, Xxxactivity.class);Intent.setcomponent (CN);StartActivity (Intent);Method

Today, it is a whim to install a Centos7 GUI, but it is not possible to modify the default boot to command line mode in the previous way.Previous method: Modify the Id:3:initdefault in the/etc/inittab file, change 3 to 5, reboot the system;Some

Previously written a simple demo, and later in the use of IE10 below to find that can not be used, first on a piece of codeHtml:1 Divclass= "All"ID= "box">2 imgID= "image"src= "Psb.png"width= "+"Height= "1470" >3 spanID= "Up">span>4

1. We recommend using the columns of the bound variable: for serial number, order number, user ID, phone number, IDNumber, ID number, etc., such columns are characterized by a better column uniqueness, the number of different values of the column

XML namespaces provide a way to avoid element naming conflicts. naming conflicts : In XML, the element name is defined by the developer, and a naming conflict occurs when two different documents use the same element name.This XML document carries

In the Web page design because cannot set the input box style many times will use the picture substitution, today in "The CSS Revelation" a book to see About the Input style box modification, the feeling is very enlightening, therefore provides to