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Oracle RAC clusterRAC, short for real application clusters, is a new technology used in the new version of Oracle Database, It is a type of high availability and the core technology that Oracle databases support the grid computing environment. An example of how to connect an application to Oracle rac: Jdbc: oracle: thin: @ (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = dc1.bpsb.com.cn) (PORT = 1521) (ADDRESS = (PROTOCOL = TCP) (HOST = dc2.bpsb.com.cn) (PORT = 1521) (LOAD_BA

About connecting VBS to MySQL and Excel, vbsmysqlexcel Objective: To connect to MySQL and find data in the new Excel table Implementation process:1. Connect to the database First, go to the MySQL website to download an ODBC data source. After installation, you can view the MySQL driver name in Control Panel-Administrative Tools-ODBC Data Source-add: 'Connection database StrCnn = "Provider = MSDASQL.1; Persist Security Info = True; Extended Propertie

First, let's give a brief introduction. [NOTE 1] installation path of MYSQL in MAC:/usr/local/mysql-5.5.28-osx10.6-x86 The database data files are stored in the data folder of the directory; The command file is in the bin folder. [NOTE 2] how to open mysql command line via Terminal:/usr/local/mysql-5.5.28-osx10.6-x86/bin/mysql Next, let's talk about the solution to the error when connecting to the MYSQL database. 1. First, it is determined that

Precautions and troubleshooting for connecting a single Oracle 11.2 instance to ASM Notes for accessing ASM from an Oracle 11.2 instance: 1. Oracle users and grid users must have the same group, and the ASM Disk group must be consistent with this group. Otherwise, the database cannot access the ASM Disk, and the ora 15081 error is returned. For example, oracle and grid both belong to the asmdba group, and the owner of the asm disk is also asmdba. [Roo

ERROR 1130 (HY000) When remotely connecting to the MySQL server) When we remotely connect to the MySQL server, the following error is reported.[Root @ d1_cvmzjgltest2 ~] # Mysql-h 10.1.1.6-u root-pEnter password:ERROR 1130 (HY000): Host '10. 1.1.5 'is not allowed to connect to this MySQL serverThe reason is: Your account cannot be remotely logged on from, but only on localhost. At this time, you only need to log in to mysql on the computer of localhos

The following error occurs when connecting to MySQL in Linux C: After the compilation is successful, run the program./connect: error while loading shared libraries: libmysqlclient. so.15: cannot open shared object file: No such file or directory. The above error occurs because the libmysqlclient. so.15 library file is not found during system running. There are two solutions: Method 1: directly copy the libmysqlclient. so.15 file to the/usr/lib library

Use php (4.x) on a Linux machine to connect to the SQL server2000 Database Apt-get install php-odbc unixODBC-devel unixODBC Or Yum install php-odbc unixODBC-devel unixODBC And then from here (http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz) The current freetds source code Cd/tmp Wget http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz Tar xzvf freetds-stable.tgz Cd freetds -* ./Configure-prefix =/usr/local/freetds-with-tdsver = 8.0-with-unixodbc =/usr (Becau

Methods for connecting to the database using VB. NET Microsoft Visual Basic. NET is an updated version of Microsoft Visual Basic, which is based on. NET framework structure, so that users can easily create Microsoft Windows operating system and network applications. Visual Basic. NET enables Visual development of network applications, network services, Windows applications, and server components. In addition, Visual Basic. NET provides XCOPY deployme

Solve the Problem of connecting Qt to PostgreSQL in Ubuntu I encountered a problem yesterday and had not solved it for a day. Today, I suddenly solved it. The problem is: in Windows, you need to manually compile the PostgreSQL driver in the Qt source code to connect to PostgreSQL, then, place the generated dynamic Connection Library to the plug-in directory plugins in the installation directory of Qt. when I ran to the Ubuntu system, I found that libq

Php core steps for connecting to the oracle database, oracle Database This example describes how to connect php to an oracle database. We will share this with you for your reference. The details are as follows: 1. Modify the php. ini file and open the extension = php_oci8.dll extension. 2. Copy the php installation directory/ext/php_oci8.dll file to the system32 directory. 3. Test code: $ Conn = oci_connect ("scott", "tiger", $ db); if (! $ Conn)

Solve Problems Related to the failure of Connecting ports in CentOS Recently, when setting up a CentOS service, port 22 is always unavailable and port 22 of Windows Telnet cannot be accessed. In CentOS, netstat-lnpt checks that port 22 is not monitored, therefore, the online Search solution can be used, but none of them can solve the problem.Now we will solve it step by step. I. Add port 22 to iptables1. To open ports 8080, enter the following com

IDENTITY field. After the insert statement is executed, a @ IDENTITY global variable value is generated. The queried result is the ID of the last new record.Copy codeThe Code is as follows: mssql_query ("insertintotbname (username) values ('nv ')", $ conn );$ Rs = mssql_query ("select @ IDENTITYasid", $ conn );If ($ row = mssql_fetch_array ($ rs )){Echo $ row [0];} 7. Release record setCopy codeThe Code is as follows: mssql_free_result ($ rs ); 8. Close the connectionCopy codeThe Code is as fol

Nodejs is a simple encapsulation operation example for connecting to the sqlserver database based on the mssql module, nodejssqlserver This example describes how to connect node. js to an SQL Server database based on the mssql module. We will share this with you for your reference. The details are as follows: Note: To enable the SQL Server to allow remote connection, follow the steps described in Baidu. With many experiences, nodejs can connect to SQL

Python Simple Method for connecting to MongoDB database, pythonmongodb This article describes how to connect Python to the MongoDB database. We will share this with you for your reference. The details are as follows: Python uses pymongo to operate MongoDB databases. First install the pymongo module. The following example shows how to connect to the MongoDB database using pymongo with the username and password: From pymongo import Export clientimpor

Steps for connecting MySQL to PHP (image and text ), This article introduces the integration of PHP and MySQL. Since it is integrated with MySQL, we must first install MySQL. The following describes how to install MySQL. Step 1: Download MySQL. To download PHP, you can download the latest version from the PHP Chinese site. Step 2: Install the MySQL database Step 3: Create a MySQL folder in the PHPedu folder and install it in the same w

of the WebService data source. I also studied for a long time to be clear.First choose the data source to create the Web service:Configure the appropriate interface URL information for the webservice. The URL must be valid here. You use it to get the data after the operation. We can click on the page test to see if it is connected:To apply a data source to pull data in a data set:Select an operation method under the interface in detail, and then next:Assuming that the interface needs to request

Putty Prompt "Connection refused" but can ping pass through, the workaround is as follows:First determine if SSH is installedRpm-qa OpenSSHRpm-qa Openssh-serverAfter execution:#ssh-keygen-t dsa-f/etc/ssh/ssh_host_dsa_key#ssh-keygen-t rsa-f/etc/ssh/ssh_host_rsa_keyThen the putty connection can be successfully logged in.=================================Check to see if your SSH service is open:NETSTAT-LNTP | Grep:22If Port 22nd is listen, it means that SSH is already active.Check that your account

Preparation: 1,centos 6.5 minimal Desktop2. Configure CentOS to access the Internet or configure the CD local Yum sourceStart: 1, use the command yum install XDM installation XDmManage X-Monitor collections with XDMCP support2. Modify the/etc/x11/xdm/xaccess file to find the following statement: # * #any host can get a login window,Remove the first # of this line and become: * #any host can get a login window3. Modify the/etc/gdm/custom.conf file.Find the following statement: [XDMCP], add the fo

A problem occurred when connecting oracle. My machine is installed with the oracle9.2 client. When when using the data access component (called system, ProgramThe error "system. Exception: system. Data. oracleclient requires Oracle client software version 8.1.7 or greater" is reported. You cannot create an oracleconnection. A When Oracle 9.2 runs on the NTFS partition, the ORACLE_HOME directory is invisible to some non-Administrator groups, in Win

Client configuration for connecting to Informix Using PB The previous article describes how to install the client under SCO. The following describes how to configure the client to connect to Informix by Pb. Software Environment Server (1) SCO (2) Informix Client (1) informixcli Client (2) pb6.5 Prerequisites: Informix has been installed successfully! The informixdir/etc/sqlhosts and/etc/services files are configured. Specific Con